Ericsson Confidential

NUMBER PORTABILITY

1 (27) Prepared (also subject responsible if other) No.

Kinkar Choudhury Approved Checked Date Rev Reference

2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Number Portability in the Global Switched Telephone Network (GSTN):

Ericsson Confidential

NUMBER PORTABILITY

2 (27) Prepared (also subject responsible if other) No.

Kinkar Choudhury Approved Checked Date Rev Reference

2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Abstract: This doc will provide the idea of using E.164 address in NPDB scenario. How the schema will be implemented in the practical scenario. MNP is implemented in different ways across the globe. In India, Telecom authority has suggested to implement the MNP by using ACQ schema. So, Here we will concentrate on the implementation of ACQ .

Ericsson Confidential

NUMBER PORTABILITY

3 (27) Prepared (also subject responsible if other) No.

Kinkar Choudhury Approved Checked Date Rev Reference

2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Database Queries in the NP Environment As indicated earlier, the ACQ schemes require that a switch query the NPDB for routing information. Various standards have been defined for the switch-to-NPDB interface. The NPDB query contains the dialed directory number and the NPDB response contains the routing number. There is certainly other information that is sent in the query and response. The primary interest is to get the routing number from the NPDB to the switch for call routing. The implementation of Number Portability in the network is done with Data Transcript changes (mainly changes on C7 analysis and B number analysis), parameter settings and features activation.

Call Routing in the NP Environment This section discusses the call routing after the routing information has been retrieved either through an NPDB query or an internal database lookup at the donor switch, or from the Integrated Services Digital Network User Part (ISUP) signaling message (e.g., for the Drop back scheme). For the ACQ, QoR and Drop back schemes, it is the Originating Network that has the routing information and is ready to route the call. For the OR scheme, it is the donor network that has the routing information and is ready to route the call. A number of triggering schemes may be employed that determine where in the call path the NPDB query is performed. In the U.S. a "N-1" policy is used, which essentially says that for local calls, the originating local carriers performs the query. Otherwise, the long distance carrier is expected to follow through with the query. To ensure independence of the actual trigger policy employed in any one carrier, forward call signaling is used to flag that an NPDB query has already been performed and to therefore suppress any subsequent NP triggers that may be encountered in downstream switches, in downstream networks. This allows the earliest able network in the call path to perform the query without introducing additional costs and call setup delays when redundant queries are performed downstream.

Security Considerations

In the PSTN, the NPDB queries are generated by the PSTN switches and carried over the SS7 networks to reach the NPDBs and back to the switches. The SS7 networks are operated by telecommunications operators and signaling transport service providers in such a closed environment that make them difficult for the hackers to penetrate. It is recommended that the NPDB queries be transported via a secure transport layer or with added security mechanisms to ensure the data integrity.

Ericsson Confidential

NUMBER PORTABILITY

4 (27) Prepared (also subject responsible if other) No.

Kinkar Choudhury Approved Checked Date Rev Reference

2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Implementation Concept TRAI has recommended that ACQ schema should be used as a MNP solution in the country. There are somes option available for implementing ACQ schema.

1. Direct Query to NPDB database. 2. Local NPDB Query a. Local NPDB as an Independent Node b. Local NPDB is associated in the STP as a local data base. As MNP enables the subscribers to retain their mobile number when subscriber moves one operator to another so it should be implemented nationally at a time. When a subscriber wants to ported out from a network, he has to asked for a new SIM as IMSI needs to be changed.

Terminology associated with ACQ (All Call Query) – Originating Network

o It is the network where the calling party is currently connected.

Donor Network

o The initial network where the number was located before being ported.

Recipient Network

o The network where a number is located after being ported.

Routing Prefix

o Routable number to identify the Service provider, Technology and the Service area for

the called party. Centralized Clearing House (CCH)

o Administered by a Neutral Third party. o Responsible for –

Negotiation between Donor & Recipient Operator during porting process. Central NP Database Administration

o Capital & Operational cost of CCH is borne by all the Operators

Ericsson Confidential

NUMBER PORTABILITY

5 (27) Prepared (also subject responsible if other) No.

Kinkar Choudhury Approved Checked Date Rev Reference

2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

The Subscriber type in the MNP

Subscriber Porting Approach – ‘Recipient-led’ Porting.

o Subscriber approaches Recipient Operator first. o The Recipient then approaches Donor via Central Clearing House (CCH) for porting

process completion. Operator’s Ported-out number (MDN) Usage

o Donor Operator shall not use the Ported-out number till it is in use by the subscriber. o Number shall be reverted back to the Donor Operator once surrendered by the

subscriber. o Donor Operator is responsible for tracking the Quarantine Period.

MNP Solution Overview Central NPDB will be holding the ported Subscriber information and it will be located centrally. In the result of NPDB query, it will provide a prefix in the B number which will uniquely identify the Recipient Operator Technology (GSM / CDMA) and service area. The Originating network re-route the call based on response of query –

o Towards HLR for its own Non-Ported subscribers and Ported - in subscribers. o Towards other operator using the routing prefix via IAM (Cld party no = Prefix +MSISDN)

for Ported-out subscribers.

Ericsson Confidential

NUMBER PORTABILITY

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Some Option of ACQ:

OPS: Operator Provisioning System For the MNP implementation , following options are available for the operator – Option 1:

o Direct query to the Central NPDB via Operator’s gateway. Option 2:

Originating Network

Called

Subscriber

1. 2

3. Re - Routing

Donor Network

(Sub’s original N/W)

NPDB Number

Portability database

Calling

Subscriber

Recipient Network

NPDB Query Prefix +

MSIDN

ACQ - Direct Routing Methodology, without the involvement of Donor Operator

Central

NPDB

Centralized Clearing House

Directly querying

Central NPDB Option 1

Local NPDB

Query (with STP) - option 2(b)

Operator

Gateway

Integrated

Local GW & OSS

GW

STP Local

NPDB

Local NPDB

Query (independent

Node) - option 2(a)

OSS

GW STP

Local

NPDB

Centralized Clearing House (CCH)

OPS OPS

Central side

Operator side

Operator 1

Operator 2

Operator 3

Ericsson Confidential

NUMBER PORTABILITY

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

o Housing Local NPDB (replica of Central NPDB) as an Independent node, at Operator’s premises.

Option 3:

o Housing Local NPDB (replica of central NPDB), co-located with STP at the Operator’s premises.

Flow Chart of ACQ

STP based ACQ Implementation

Subscriber originates a Call

Originating network query the NPDB

Is the subscriber

ported

STP returns a

routing Prefix

Route the call

to other operator With its prefix.

Is the subscriber

ported-in

Call Termination locally

Non ported Subs belongs to

other operator ?

NPDB returns a

routing Prefix

Re-Route the call

to recipient based on prefix

YES

YES

NO

NO YES

NO

Ericsson Confidential

NUMBER PORTABILITY

8 (27) Prepared (also subject responsible if other) No.

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Option 1: Direct Query to Centralized NPDB

Pros No need to maintain local NPDB.

Initial Investment cost will be low. Cons Noticeable Delay in the call processing.

Connectivity cost will be high.

Central NPDB should have necessary interface to connect to Operators.

More suitable to small operators & content providers.

Centralized

Clearing

House +

Central NPDB

Operator’s gateways

Operator

Network

Network Interface

Ericsson Confidential

NUMBER PORTABILITY

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Option 2(a) - Local NPDB as an Independent Node at the Operator’s Premises.

Pros

Local NPDB will be maintained at Operators side.

STP will query the local NPDB for every call. Cons

Additional signaling links between the independent local NPDB & the STP.

Delay in call processing.

Suitable for Operators who don’t have a separate STP.

OSS gateway BSS/OSS

Core

NEs

STP

Centralized

Clearing House

+ Central NPDB

Local

NPDB

Network Interface

Centralized

Clearing House

+ Central NPDB

Ericsson Confidential

NUMBER PORTABILITY

10 (27) Prepared (also subject responsible if other) No.

Kinkar Choudhury Approved Checked Date Rev Reference

2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Option 2(b)- Local NPDB co-located with STP

Network Element Layer

o ACQ Implementation

• STP with in-build LNPDB and ACQ capabilities • All network elements will connect to STP for ACQ

o Local NPDB

• Exact replica of centralized NPDB • Timely synchronized with centralized NPDB • Repository of ported subscribers information

Local GW

+ OSS GW

Local

NPDB

STP Centralized

Clearing House

+ Central NPDB

Pros

Local NPDB will be maintained at Operators side.

STP will query the local NPDB for every call.

OSS GW & Local GW are integrated in one platform.

Additional signaling links for Local NPDB query not required.

Optimize use of existing STP capabilities.

Cons

Processing load on STP will increase.

BSS/OSS

Network Interface

Ericsson Confidential

NUMBER PORTABILITY

11 (27) Prepared (also subject responsible if other) No.

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

MNP CALL SCENARIOS

MNP Call Scenarios - Intra-circle

Aircel

O-MSC/GMSC

Local

NPDB

STP

HLR IN HLR SMSC

Central Clearing

House Database

Other

Operator

GMSC 1

2

3

6

4

5

Locreq response (LRN + MSISDN)

IAM (LRN + MSISDN)

Query Response (LRN prefix)

Local NPDB query

LOCREQ ( B party MSISDN)

- LRN = routing prefix

A Party = Aircel Non- Ported Subscriber. B Party = Aircel Ported out subscriber.

Ericsson Confidential

NUMBER PORTABILITY

12 (27) Prepared (also subject responsible if other) No.

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

MNP Call Scenarios - Intra-circle

Local

NPDB

ST

P

IN HLR

SMSC

Aircel

Serving MSC

MNP Call Scenarios - Intra circle

1

2

3

7

8

6

4

5

Aircel

O-

MSC/GMSC

Query Response (HLR PC )

Locreq Response (TLDN )

Central

Clearing

House

Database

LOC REQ ( B party MSISDN)

Local NPDB query

Locreq Response (TLDN)

IAM ( TLDN)

- LRN = routing prefix

A Party = Aircel Non- Ported Subscriber. B Party = Other operator’s subscriber Ported in to Aircel.

LOC REQ ( B party MSISDN)

Ericsson Confidential

NUMBER PORTABILITY

13 (27) Prepared (also subject responsible if other) No.

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

SMS Call flow

Loca

l

NPD

B

Central

Clearing

House

Database

SM

SC

Aircel

O-MSC Other

Operator

MSC

Other

Operator

GMSC

Other

Operator

HLR

S

T

P

1 SMDPP_MO

2 Local NPDB query

Query Response (LRN prefix) 4

SMDPP_MO (B party = LRN +MSISDN) SMDPP_MO

_rr 5

SMDPP_MO_rr

6

SRI ( B party = MSISDN)

SRI ( B party = MSISDN) 8

9

SRI ( B party = MSISDN)

SRI resp 10

SRI resp (s-MSC add)

11

12

Forward Short

Message

13

14

Forward Short

Message 15

Forward Short

Message

3

7

A Party = Aircel Non-Ported Subscriber of circle X B Party = Other operator’s Ported-out subscriber of circle Y.

SRI resp (s-MSC add)

SMS deposition HLR Query SMS Termination

Ericsson Confidential

NUMBER PORTABILITY

14 (27) Prepared (also subject responsible if other) No.

Kinkar Choudhury Approved Checked Date Rev Reference

2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Prepaid subscriber call

Aircel O-MSC/GMSC

Local NPDB

STP

HLR

IN HLR SMSC

1

2

6 5 IDP (LRN+Prefix)

Connect (B party = LRN Prefix+MSISDN)

IDP

7

3

4 Central Clearing House Database

Rest of the call flow will remain same as for A normal prepaid subscriber.

Local NPDB query

Query Response (LRN prefix)

Connect (B party = LRN Prefix+MSISDN)

Other Operator MSC

IAM ( LRN + MSISDN) 8

Ericsson Confidential

NUMBER PORTABILITY

15 (27) Prepared (also subject responsible if other) No.

Kinkar Choudhury Approved Checked Date Rev Reference

2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Network Impact

STP

o Development is required at the STP, for the interception of IS-826 message (ANALYZED) for the prepaid calls.

MSC Impacts

o Development is required for intimating calling party via an announcement, if called party is a ported-out/ported in subscriber

SMSC Impacts

o Development is required for striping off the routing prefix from B party MSISDN before terminating the SMS

o In the SMS- MT, the SMSC shall strip off the prefix from the MAP layer & shall add it in the SCCP layer.

IN Impacts /Billing Impacts

o IN MNP functionality needs to be activated.

o End of call notification (USSD) should be routed through STP, here STP will do the SCCP routing as IN does not has the information about customer HLR.

o Tariffs in SDP need to be changed.

o CDR format of CCN and SDP will be changed.

o Activation of FNR (SRF and MNP data access features)

o Activation of NP features for charging in the MSC.

Ericsson Confidential

NUMBER PORTABILITY

16 (27) Prepared (also subject responsible if other) No.

Kinkar Choudhury Approved Checked Date Rev Reference

2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

o Activation of FNR (SRF and MNP data access features)

o Activation of NP features for charging in the MSC.

Distinction of ON-net/OFF-net calls via an announcement/special tone

o Development is required for intimating calling party via an announcement, if called party is a ported-out/ported in subscriber.

o Handling of port-out/in requests.

Validation of porting-in/out subscribers.

o Reasons for porting fallouts:

Before porting, the subscriber needs to be authenticated for security reasons. And during registration in the central data base and recipient network if any technical fault happen it should be checked by both third party (NPDB) and recipient network engineers.

o Notification of successful porting to the ported-in subscribers:

A notification should be sent to the doner network and the ported in subscriber.

o Time duration for porting:

Time duration of the porting needs to be fixed as it is directly related to the synchronization process of local NPDB database with central NPDB database.

Provisioning of Port–in/out subscribers.

o When a new subscriber wants to ported in the network, he has to assign a new IMSI and the information needs to be updated in the central NPDB database which will be handled by third party. In the same way ported out subscriber information needs to be updated in the same network.

o If a ported in customer wants to port out to other network, his information needs to be updated in the central NPDB database handled by third party.

Ericsson Confidential

NUMBER PORTABILITY

17 (27) Prepared (also subject responsible if other) No.

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Time of synchronization from Central database.

o Time synchronization schedule needs to be fixed, like ones in a day. But keep in mind that it should be lees than the process of ported out or ported in of subscriber.

Subscriber Porting mechanism

o Break before Make

• Service Deactivation at donor before service activation at recipient.

Ericsson Confidential

NUMBER PORTABILITY

18 (27) Prepared (also subject responsible if other) No.

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

Location Routing Numbers List Sl. No.

Name of Licensee Company Service Area Type of Licence

Mobile Network

LRN

1 Aditya Birla Telecom Ltd. Bihar UAS GSM 5500

2 Aircel Cellular Limited Chennai CMTS GSM 5501

3 Aircel Ltd. Andhra Pradesh UAS GSM 5502

4 Aircel Ltd. Delhi UAS GSM 5503

5 Aircel Ltd. Gujarat UAS GSM 5504

6 Aircel Ltd. Karnataka UAS GSM 5505

7 Aircel Ltd. Maharashtra UAS GSM 5506

8 Aircel Ltd. Mumbai UAS GSM 5507

9 Aircel Ltd. Rajasthan UAS GSM 5508

10 Aircel Ltd.

Tamilnadu (excluding Chennai Service Area) CMTS GSM 5509

11 Allianz Infratech (P) Ltd. Bihar UAS GSM 5510

12 Allianz Infratech (P) Ltd. Madhya Pradesh UAS GSM 5511

13 Bharat Sanchar Nigam Ltd. Andhra Pradesh CMTS GSM 5512

14 Bharat Sanchar Nigam Ltd. Assam CMTS GSM 5513

15 Bharat Sanchar Nigam Ltd. Bihar CMTS GSM 5514

16 Bharat Sanchar Nigam Ltd. Chennai CMTS GSM 5515

17 Bharat Sanchar Nigam Ltd. Gujarat CMTS GSM 5516

18 Bharat Sanchar Nigam Ltd. Haryana CMTS GSM 5517

19 Bharat Sanchar Nigam Ltd. Himachal Pradesh CMTS GSM 5518

20 Bharat Sanchar Nigam Ltd. Jammu & Kashmir CMTS GSM 5519

21 Bharat Sanchar Nigam Ltd. Karnataka CMTS GSM 5520

22 Bharat Sanchar Nigam Ltd. Kerala CMTS GSM 5521

23 Bharat Sanchar Nigam Ltd. Kolkata CMTS GSM 5522

24 Bharat Sanchar Nigam Ltd. Madhya Pradesh CMTS GSM 5523

25 Bharat Sanchar Nigam Ltd. Maharashtra CMTS GSM 5524

26 Bharat Sanchar Nigam Ltd. North East CMTS GSM 5525

27 Bharat Sanchar Nigam Ltd. Orissa CMTS GSM 5526

28 Bharat Sanchar Nigam Ltd. Punjab CMTS GSM 5527

29 Bharat Sanchar Nigam Ltd. Rajasthan CMTS GSM 5528

30 Bharat Sanchar Nigam Ltd.

Tamilnadu (excluding Chennai Service Area) CMTS GSM 5529

31 Bharat Sanchar Nigam Ltd. Uttar Pradesh (East) CMTS GSM 5530

32 Bharat Sanchar Nigam Ltd. Uttar Pradesh (West) CMTS GSM 5531

33 Bharat Sanchar Nigam Ltd. West Bengal CMTS GSM 5532

34 Bharat Sanchar Nigam Ltd. Andhra Pradesh CMTS CDMA 5533

35 Bharat Sanchar Nigam Ltd. Assam CMTS CDMA 5534

36 Bharat Sanchar Nigam Ltd. Bihar CMTS CDMA 5535

37 Bharat Sanchar Nigam Ltd. Chennai CMTS CDMA 5536

38 Bharat Sanchar Nigam Ltd. Gujarat CMTS CDMA 5537

39 Bharat Sanchar Nigam Ltd. Haryana CMTS CDMA 5538

40 Bharat Sanchar Nigam Ltd. Himachal Pradesh CMTS CDMA 5539

41 Bharat Sanchar Nigam Ltd. Jammu & Kashmir CMTS CDMA 5540

Ericsson Confidential

NUMBER PORTABILITY

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

42 Bharat Sanchar Nigam Ltd. Karnataka CMTS CDMA 5541

43 Bharat Sanchar Nigam Ltd. Kerala CMTS CDMA 5542

44 Bharat Sanchar Nigam Ltd. Kolkata CMTS CDMA 5543

45 Bharat Sanchar Nigam Ltd. Madhya Pradesh CMTS CDMA 5544

46 Bharat Sanchar Nigam Ltd. Maharashtra CMTS CDMA 5545

47 Bharat Sanchar Nigam Ltd. North East CMTS CDMA 5546

48 Bharat Sanchar Nigam Ltd. Orissa CMTS CDMA 5547

49 Bharat Sanchar Nigam Ltd. Punjab CMTS CDMA 5548

50 Bharat Sanchar Nigam Ltd. Rajasthan CMTS CDMA 5549

51 Bharat Sanchar Nigam Ltd.

Tamilnadu (excluding Chennai Service Area) CMTS CDMA 5550

52 Bharat Sanchar Nigam Ltd. Uttar Pradesh (East) CMTS CDMA 5551

53 Bharat Sanchar Nigam Ltd. Uttar Pradesh (West) CMTS CDMA 5552

54 Bharat Sanchar Nigam Ltd. West Bengal CMTS CDMA 5553

55 Bharti Airtel Limited Andhra Pradesh UAS GSM 5554

56 Bharti Airtel Limited Assam UAS GSM 5555

57 Bharti Airtel Limited Bihar UAS GSM 5556

58 Bharti Airtel Limited Delhi UAS GSM 5557

59 Bharti Airtel Limited Gujarat UAS GSM 5558

60 Bharti Airtel Limited Haryana UAS GSM 5559

61 Bharti Airtel Limited Himachal Pradesh UAS GSM 5560

62 Bharti Airtel Limited Jammu & Kashmir UAS GSM 5561

63 Bharti Airtel Limited Karnataka UAS GSM 5562

64 Bharti Airtel Limited Kerala UAS GSM 5563

65 Bharti Airtel Limited Kolkata UAS GSM 5564

66 Bharti Airtel Limited Madhya Pradesh UAS GSM 5565

67 Bharti Airtel Limited Maharashtra UAS GSM 5566

68 Bharti Airtel Limited Mumbai UAS GSM 5567

69 Bharti Airtel Limited Orissa UAS GSM 5568

70 Bharti Airtel Limited Punjab UAS GSM 5569

71 Bharti Airtel Limited Tamilnadu (including Chennai Service Area) UAS GSM 5570

72 Bharti Airtel Limited Uttar Pradesh (East) UAS GSM 5571

73 Bharti Airtel Limited Uttar Pradesh (West) UAS GSM 5572

74 Bharti Airtel Limited West Bengal UAS GSM 5573

75 Bharti Hexacom Ltd. North East CMTS GSM 5574

76 Bharti Hexacom Ltd. Rajasthan UAS GSM 5575

77 BPL Mobile Communication Ltd. Mumbai CMTS GSM 5576

78 Datacom Solutions Pvt. Ltd. Andhra Pradesh UAS GSM 5577

79 Datacom Solutions Pvt. Ltd. Assam UAS GSM 5578

80 Datacom Solutions Pvt. Ltd. Bihar UAS GSM 5579

81 Datacom Solutions Pvt. Ltd. Delhi UAS GSM 5580

82 Datacom Solutions Pvt. Ltd. Gujarat UAS GSM 5581

83 Datacom Solutions Pvt. Ltd. Haryana UAS GSM 5582

84 Datacom Solutions Pvt. Ltd. Himachal Pradesh UAS GSM 5583

85 Datacom Solutions Pvt. Ltd. Jammu & Kashmir UAS GSM 5584

86 Datacom Solutions Pvt. Ltd. Karnataka UAS GSM 5585

87 Datacom Solutions Pvt. Ltd. Kerala UAS GSM 5586

Ericsson Confidential

NUMBER PORTABILITY

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2009-10-29 PA1

Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

88 Datacom Solutions Pvt. Ltd. Kolkata UAS GSM 5587

89 Datacom Solutions Pvt. Ltd. Madhya Pradesh UAS GSM 5588

90 Datacom Solutions Pvt. Ltd. Maharashtra UAS GSM 5589

91 Datacom Solutions Pvt. Ltd. Mumbai UAS GSM 5590

92 Datacom Solutions Pvt. Ltd. North East UAS GSM 5591

93 Datacom Solutions Pvt. Ltd. Orissa UAS GSM 5592

94 Datacom Solutions Pvt. Ltd. Rajasthan UAS GSM 5593

95 Datacom Solutions Pvt. Ltd. Tamilnadu (including Chennai Service Area) UAS GSM 5594

96 Datacom Solutions Pvt. Ltd. Uttar Pradesh (East) UAS GSM 5595

97 Datacom Solutions Pvt. Ltd. Uttar Pradesh (West) UAS GSM 5596

98 Datacom Solutions Pvt. Ltd. West Bengal UAS GSM 5597

99 Dishnet Wireless Ltd. Assam UAS GSM 5598

100 Dishnet Wireless Ltd. Bihar UAS GSM 5599

101 Dishnet Wireless Ltd. Haryana UAS GSM 5600

102 Dishnet Wireless Ltd. Himachal Pradesh UAS GSM 5601

103 Dishnet Wireless Ltd. Jammu & Kashmir UAS GSM 5602

104 Dishnet Wireless Ltd. Kerala UAS GSM 5603

105 Dishnet Wireless Ltd. Kolkata UAS GSM 5604

106 Dishnet Wireless Ltd. Madhya Pradesh UAS GSM 5605

107 Dishnet Wireless Ltd. North East UAS GSM 5606

108 Dishnet Wireless Ltd. Orissa UAS GSM 5607

109 Dishnet Wireless Ltd. Punjab UAS GSM 5608

110 Dishnet Wireless Ltd. Uttar Pradesh (East) UAS GSM 5609

111 Dishnet Wireless Ltd. Uttar Pradesh (West) UAS GSM 5610

112 Dishnet Wireless Ltd. West Bengal UAS GSM 5611

113 HFCL Infotel Ltd. Punjab UAS GSM 5612

114 Idea Cellular Ltd. Andhra Pradesh CMTS GSM 5613

115 Idea Cellular Ltd. Assam UAS GSM 5614

116 Idea Cellular Ltd. Delhi CMTS GSM 5615

117 Idea Cellular Ltd. Gujarat CMTS GSM 5616

118 Idea Cellular Ltd. Haryana CMTS GSM 5617

119 Idea Cellular Ltd. Himachal Pradesh CMTS GSM 5618

120 Idea Cellular Ltd. Jammu & Kashmir UAS GSM 5619

121 Idea Cellular Ltd. Karnataka UAS GSM 5620

122 Idea Cellular Ltd. Kerala CMTS GSM 5621

123 Idea Cellular Ltd. Kolkata UAS GSM 5622

124 Idea Cellular Ltd. Madhya Pradesh CMTS GSM 5623

125 Idea Cellular Ltd. Maharashtra CMTS GSM 5624

126 Idea Cellular Ltd. Mumbai UAS GSM 5625

127 Idea Cellular Ltd. North East UAS GSM 5626

128 Idea Cellular Ltd. Orissa UAS GSM 5627

129 Idea Cellular Ltd. Punjab UAS GSM 5628

130 Idea Cellular Ltd. Rajasthan CMTS GSM 5629

131 Idea Cellular Ltd. Tamilnadu (including Chennai Service Area) UAS GSM 5630

132 Idea Cellular Ltd. Uttar Pradesh (East) CMTS GSM 5631

133 Idea Cellular Ltd. Uttar Pradesh (West) CMTS GSM 5632

134 Idea Cellular Ltd. West Bengal UAS GSM 5633

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NUMBER PORTABILITY

21 (27) Prepared (also subject responsible if other) No.

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Number Portability in the Global Switched Telephone Network (GSTN): (ekincho)

135 Loop Telecom Private Ltd. Andhra Pradesh UAS GSM 5634

136 Loop Telecom Private Ltd. Assam UAS GSM 5635

137 Loop Telecom Private Ltd. Bihar UAS GSM 5636

138 Loop Telecom Private Ltd. Delhi UAS GSM 5637

139 Loop Telecom Private Ltd. Gujarat UAS GSM 5638

140 Loop Telecom Private Ltd. Haryana UAS GSM 5639

141 Loop Telecom Private Ltd. Himachal Pradesh UAS GSM 5640

142 Loop Telecom Private Ltd. Jammu & Kashmir UAS GSM 5641

143 Loop Telecom Private Ltd. Karnataka UAS GSM 5642

144 Loop Telecom Private Ltd. Kerala UAS GSM 5643

145 Loop Telecom Private Ltd. Kolkata UAS GSM 5644

146 Loop Telecom Private Ltd. Madhya Pradesh UAS GSM 5645

147 Loop Telecom Private Ltd. Maharashtra UAS GSM 5646

148 Loop Telecom Private Ltd. North East UAS GSM 5647

149 Loop Telecom Private Ltd. Orissa UAS GSM 5648

150 Loop Telecom Private Ltd. Punjab UAS GSM 5649

151 Loop Telecom Private Ltd. Rajasthan UAS GSM 5650

152 Loop Telecom Private Ltd. Tamilnadu (including Chennai Service Area) UAS GSM 5651

153 Loop Telecom Private Ltd. Uttar Pradesh (East) UAS GSM 5652

154 Loop Telecom Private Ltd. Uttar Pradesh (West) UAS GSM 5653

155 Loop Telecom Private Ltd. West Bengal UAS GSM 5654

156 Mahanagar Telephone Nigam Ltd. Delhi CMTS GSM 5655

157 Mahanagar Telephone Nigam Ltd. Mumbai CMTS GSM 5656

158 Mahanagar Telephone Nigam Ltd. Delhi CMTS CDMA 5657

159 Mahanagar Telephone Nigam Ltd. Mumbai CMTS CDMA 5658

160 Reliance Communications Ltd. Andhra Pradesh UAS CDMA 5659

161 Reliance Communications Ltd. Bihar UAS CDMA 5660

162 Reliance Communications Ltd. Delhi UAS CDMA 5661

163 Reliance Communications Ltd. Gujarat UAS CDMA 5662

164 Reliance Communications Ltd. Haryana UAS CDMA 5663

165 Reliance Communications Ltd. Himachal Pradesh UAS CDMA 5664

166 Reliance Communications Ltd. Jammu & Kashmir UAS CDMA 5665

167 Reliance Communications Ltd. Karnataka UAS CDMA 5666

168 Reliance Communications Ltd. Kerala UAS CDMA 5667

169 Reliance Communications Ltd. Kolkata UAS CDMA 5668

170 Reliance Communications Ltd. Madhya Pradesh UAS CDMA 5669

171 Reliance Communications Ltd. Maharashtra UAS CDMA 5670

172 Reliance Communications Ltd. Mumbai UAS CDMA 5671

173 Reliance Communications Ltd. Orissa UAS CDMA 5672

174 Reliance Communications Ltd. Punjab UAS CDMA 5673

175 Reliance Communications Ltd. Rajasthan UAS CDMA 5674

176 Reliance Communications Ltd. Tamilnadu (including Chennai Service Area) UAS CDMA 5675

177 Reliance Communications Ltd. Uttar Pradesh (East) UAS CDMA 5676

178 Reliance Communications Ltd. Uttar Pradesh (West) UAS CDMA 5677

179 Reliance Communications Ltd. West Bengal UAS CDMA 5678

180 Reliance Communications Ltd. Andhra Pradesh UAS GSM 5679

181 Reliance Communications Ltd. Delhi UAS GSM 5680

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182 Reliance Communications Ltd. Gujarat UAS GSM 5681

183 Reliance Communications Ltd. Haryana UAS GSM 5682

184 Reliance Communications Ltd. Jammu & Kashmir UAS GSM 5683

185 Reliance Communications Ltd. Karnataka UAS GSM 5684

186 Reliance Communications Ltd. Kerala UAS GSM 5685

187 Reliance Communications Ltd. Maharashtra UAS GSM 5686

188 Reliance Communications Ltd. Mumbai UAS GSM 5687

189 Reliance Communications Ltd. Punjab UAS GSM 5688

190 Reliance Communications Ltd. Rajasthan UAS GSM 5689

191 Reliance Communications Ltd. Tamilnadu (including Chennai Service Area) UAS GSM 5690

192 Reliance Communications Ltd. Uttar Pradesh (East) UAS GSM 5691

193 Reliance Communications Ltd. Uttar Pradesh (West) UAS GSM 5692

194 Reliance Telecom Ltd. Assam UAS GSM 5693

195 Reliance Telecom Ltd. Bihar UAS GSM 5694

196 Reliance Telecom Ltd. Himachal Pradesh UAS GSM 5695

197 Reliance Telecom Ltd. Kolkata UAS GSM 5696

198 Reliance Telecom Ltd. Madhya Pradesh UAS GSM 5697

199 Reliance Telecom Ltd. North East UAS GSM 5698

200 Reliance Telecom Ltd. Orissa UAS GSM 5699

201 Reliance Telecom Ltd. West Bengal UAS GSM 5700

202 Reliance Telecom Ltd. Assam UAS CDMA 5701

203 Reliance Telecom Ltd. North East UAS CDMA 5702

204 S Tel Ltd. Assam UAS GSM 5703

205 S Tel Ltd. Bihar UAS GSM 5704

206 S Tel Ltd. Himachal Pradesh UAS GSM 5705

207 S Tel Ltd. Jammu & Kashmir UAS GSM 5706

208 S Tel Ltd. North East UAS GSM 5707

209 S Tel Ltd. Orissa UAS GSM 5708

210 Shyam Telelink Limited Andhra Pradesh UAS CDMA 5709

211 Shyam Telelink Limited Assam UAS CDMA 5710

212 Shyam Telelink Limited Bihar UAS CDMA 5711

213 Shyam Telelink Limited Delhi UAS CDMA 5712

214 Shyam Telelink Limited Gujarat UAS CDMA 5713

215 Shyam Telelink Limited Haryana UAS CDMA 5714

216 Shyam Telelink Limited Himachal Pradesh UAS CDMA 5715

217 Shyam Telelink Limited Jammu & Kashmir UAS CDMA 5716

218 Shyam Telelink Limited Karnataka UAS CDMA 5717

219 Shyam Telelink Limited Kerala UAS CDMA 5718

220 Shyam Telelink Limited Kolkata UAS CDMA 5719

221 Shyam Telelink Limited Madhya Pradesh UAS CDMA 5720

222 Shyam Telelink Limited Maharashtra UAS CDMA 5721

223 Shyam Telelink Limited Mumbai UAS CDMA 5722

224 Shyam Telelink Limited North East UAS CDMA 5723

225 Shyam Telelink Limited Orissa UAS CDMA 5724

226 Shyam Telelink Limited Punjab UAS CDMA 5725

227 Shyam Telelink Limited Tamilnadu (including Chennai Service Area) UAS CDMA 5726

228 Shyam Telelink Limited Uttar Pradesh (East) UAS CDMA 5727

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229 Shyam Telelink Limited Uttar Pradesh (West) UAS CDMA 5728

230 Shyam Telelink Limited West Bengal UAS CDMA 5729

231 Shyam Telelink Ltd. Rajasthan UAS CDMA 5730

232 Spice Communications Ltd. Andhra Pradesh UAS GSM 5731

233 Spice Communications Ltd. Delhi UAS GSM 5732

234 Spice Communications Ltd. Haryana UAS GSM 5733

235 Spice Communications Ltd. Karnataka UAS GSM 5734

236 Spice Communications Ltd. Maharashtra UAS GSM 5735

237 Spice Communications Ltd. Punjab UAS GSM 5736

238 Swan Telecom Pvt. Ltd. Andhra Pradesh UAS GSM 5737

239 Swan Telecom Pvt. Ltd. Delhi UAS GSM 5738

240 Swan Telecom Pvt. Ltd. Gujarat UAS GSM 5739

241 Swan Telecom Pvt. Ltd. Haryana UAS GSM 5740

242 Swan Telecom Pvt. Ltd. Karnataka UAS GSM 5741

243 Swan Telecom Pvt. Ltd. Kerala UAS GSM 5742

244 Swan Telecom Pvt. Ltd. Maharashtra UAS GSM 5743

245 Swan Telecom Pvt. Ltd. Mumbai UAS GSM 5744

246 Swan Telecom Pvt. Ltd. Punjab UAS GSM 5745

247 Swan Telecom Pvt. Ltd. Rajasthan UAS GSM 5746

248 Swan Telecom Pvt. Ltd. Tamilnadu (including Chennai Service Area) UAS GSM 5747

249 Swan Telecom Pvt. Ltd. Uttar Pradesh (East) UAS GSM 5748

250 Swan Telecom Pvt. Ltd. Uttar Pradesh (West) UAS GSM 5749

251 Tata Teleservices (Maharashtra) Ltd. Maharashtra

UAS GSM 5750

252 Tata Teleservices (Maharashtra) Ltd. Mumbai UAS GSM 5751

253 Tata Teleservices Ltd. Andhra Pradesh UAS GSM 5752

254 Tata Teleservices Ltd. Assam UAS GSM 5753

255 Tata Teleservices Ltd. Bihar UAS GSM 5754

256 Tata Teleservices Ltd. Chennai UAS GSM 5755

257 Tata Teleservices Ltd. Delhi UAS GSM 5756

258 Tata Teleservices Ltd. Gujarat UAS GSM 5757

259 Tata Teleservices Ltd. Haryana UAS GSM 5758

260 Tata Teleservices Ltd. Himachal Pradesh UAS GSM 5759

261 Tata Teleservices Ltd. Jammu & Kashmir UAS GSM 5760

262 Tata Teleservices Ltd. Karnataka UAS GSM 5761

263 Tata Teleservices Ltd. Kerala UAS GSM 5762

264 Tata Teleservices Ltd. Kolkata UAS GSM 5763

265 Tata Teleservices Ltd. Madhya Pradesh UAS GSM 5764

266 Tata Teleservices Ltd. North East UAS GSM 5765

267 Tata Teleservices Ltd. Orissa UAS GSM 5766

268 Tata Teleservices Ltd. Punjab UAS GSM 5767

269 Tata Teleservices Ltd. Rajasthan UAS GSM 5768

270 Tata Teleservices Ltd.

Tamilnadu (excluding Chennai Service Area) UAS GSM 5769

271 Tata Teleservices Ltd. Uttar Pradesh (East) UAS GSM 5770

272 Tata Teleservices Ltd. Uttar Pradesh (West) UAS GSM 5771

273 Tata Teleservices Ltd. West Bengal UAS GSM 5772

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274 Tata Teleservices (Maharashtra) Ltd. Maharashtra

UAS CDMA 5773

275 Tata Teleservices (Maharashtra) Ltd. Mumbai UAS CDMA 5774

276 Tata Teleservices Ltd. Andhra Pradesh UAS CDMA 5775

277 Tata Teleservices Ltd. Assam UAS CDMA 5776

278 Tata Teleservices Ltd. Bihar UAS CDMA 5777

279 Tata Teleservices Ltd. Chennai UAS CDMA 5778

280 Tata Teleservices Ltd. Delhi UAS CDMA 5779

281 Tata Teleservices Ltd. Gujarat UAS CDMA 5780

282 Tata Teleservices Ltd. Haryana UAS CDMA 5781

283 Tata Teleservices Ltd. Himachal Pradesh UAS CDMA 5782

284 Tata Teleservices Ltd. Jammu & Kashmir UAS CDMA 5783

285 Tata Teleservices Ltd. Karnataka UAS CDMA 5784

286 Tata Teleservices Ltd. Kerala UAS CDMA 5785

287 Tata Teleservices Ltd. Kolkata UAS CDMA 5786

288 Tata Teleservices Ltd. Madhya Pradesh UAS CDMA 5787

289 Tata Teleservices Ltd. North East UAS CDMA 5788

290 Tata Teleservices Ltd. Orissa UAS CDMA 5789

291 Tata Teleservices Ltd. Punjab UAS CDMA 5790

292 Tata Teleservices Ltd. Rajasthan UAS CDMA 5791

293 Tata Teleservices Ltd.

Tamilnadu (excluding Chennai Service Area) UAS CDMA 5792

294 Tata Teleservices Ltd. Uttar Pradesh (East) UAS CDMA 5793

295 Tata Teleservices Ltd. Uttar Pradesh (West) UAS CDMA 5794

296 Tata Teleservices Ltd. West Bengal UAS CDMA 5795

297 Unitech Wireless (Delhi) Ltd. Delhi UAS GSM 5796

298 Unitech Wireless (East) Pvt. Ltd. Assam UAS GSM 5797

299 Unitech Wireless (East) Pvt. Ltd. Bihar UAS GSM 5798

300 Unitech Wireless (East) Pvt. Ltd. North East UAS GSM 5799

301 Unitech Wireless (East) Pvt. Ltd. Orissa UAS GSM 5800

302 Unitech Wireless (East) Pvt. Ltd. Uttar Pradesh (East) UAS GSM 5801

303 Unitech Wireless (East) Pvt. Ltd. West Bengal UAS GSM 5802

304 Unitech Wireless (Kolkata) Ltd. Kolkata UAS GSM 5803

305

Unitech Wireless (Mumbai) Pvt. Ltd. Mumbai UAS GSM 5804

306 Unitech Wireless (North) Pvt. Ltd. Haryana UAS GSM 5805

307 Unitech Wireless (North) Pvt. Ltd. Himachal Pradesh UAS GSM 5806

308 Unitech Wireless (North) Pvt. Ltd. Jammu & Kashmir UAS GSM 5807

309 Unitech Wireless (North) Pvt. Ltd. Punjab UAS GSM 5808

310 Unitech Wireless (North) Pvt. Ltd. Rajasthan UAS GSM 5809

311 Unitech Wireless (North) Pvt. Ltd. Uttar Pradesh (West) UAS GSM 5810

312 Unitech Wireless (South) Ltd. Andhra Pradesh UAS GSM 5811

313 Unitech Wireless (South) Ltd. Karnataka UAS GSM 5812

314 Unitech Wireless (South) Ltd. Kerala UAS GSM 5813

315

Unitech Wireless (Tamil Nadu) Pvt. Ltd.

Tamilnadu (including Chennai Service Area) UAS GSM 5814

316 Unitech Wireless (West) Pvt. Ltd. Gujarat UAS GSM 5815

317 Unitech Wireless (West) Pvt. Ltd. Madhya Pradesh UAS GSM 5816

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318 Unitech Wireless (West) Pvt. Ltd. Maharashtra UAS GSM 5817

319 Vodafone Essar Cellular Ltd. Kerala UAS GSM 5818

320 Vodafone Essar Cellular Ltd. Maharashtra UAS GSM 5819

321 Vodafone Essar Cellular Ltd.

Tamilnadu (excluding Chennai Service Area) UAS GSM 5820

322 Vodafone Essar Digilink Ltd. Haryana UAS GSM 5821

323 Vodafone Essar Digilink Ltd. Rajasthan UAS GSM 5822

324 Vodafone Essar Digilink Ltd. Uttar Pradesh (East) UAS GSM 5823

325 Vodafone Essar East Ltd. Kolkata UAS GSM 5824

326 Vodafone Essar Gujarat Ltd. Gujarat UAS GSM 5825

327 Vodafone Essar Ltd. Mumbai UAS GSM 5826

328 Vodafone Essar Mobile Services Ltd. Delhi UAS GSM 5827

329 Vodafone Essar South Ltd. Andhra Pradesh UAS GSM 5828

330 Vodafone Essar South Ltd. Chennai UAS GSM 5829

331 Vodafone Essar South Ltd. Karnataka UAS GSM 5830

332 Vodafone Essar South Ltd. Punjab UAS GSM 5831

333 Vodafone Essar South Ltd. Uttar Pradesh (West) UAS GSM 5832

334 Vodafone Essar South Ltd. West Bengal UAS GSM 5833

335 Vodafone Essar Spacetel Ltd. Assam UAS GSM 5834

336 Vodafone Essar Spacetel Ltd. Bihar UAS GSM 5835

337 Vodafone Essar Spacetel Ltd. Himachal Pradesh UAS GSM 5836

338 Vodafone Essar Spacetel Ltd. Jammu & Kashmir UAS GSM 5837

339 Vodafone Essar Spacetel Ltd. Madhya Pradesh UAS GSM 5838

340 Vodafone Essar Spacetel Ltd. North East UAS GSM 5839

341 Vodafone Essar Spacetel Ltd. Orissa UAS GSM 5840

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Abbreviations and Acronyms ACQ All Call Query AIN Advanced Intelligent Network AMPS Advanced Mobile Phone System ANSI American National Standards Institute API Application Programming Interface C7 Common Channel Signaling System Number 7 CDMA Code Division Multiple Access CdPA Called Party Address CdPN Called Party Number CH Code Holder CIC Carrier Identification Code CIDR Classless Inter-Domain Routing CMIP Common Management Information Protocol CO Central Office CS1 Capability Set 1 CS2 Capability Set 2 DN Directory Number DNS Domain Name System ENUM Telephone Number Mapping ETSI European Tecommunications Standards Institute FCI Forward Call Indicator GAP Generic Address Parameter GMSC Gateway Mobile Services Switching Center or Gateway Mobile Switching Center GNP Geographic Number Portability GSM Global System for Mobile Communications GSTN Global Switched Telephone Network GTT Global Title Translation GW Gateways HLR Home Location Register IAM Initial Address Message IETF Internet Engineering Task Force ILNP Interim LNP IN Intelligent Network INAP Intelligent Network Application Part INP Interim NP IP Internet Protocol IS-41 Interim Standards Number 41 ISDN Integrated Services Digital Network ISUP ISDN User Part ITN Individual Telephony Number ITU International Telecommunication Union ITU-TS ITU-Telecommunication Sector LDAP Lightweight Directory Access Protocol LEC Local Exchange Carrier LERG Local Exchange Routing Guide

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LNP Local Number Portability LRN Location Routing Number MAP Mobile Application Part MNP Mobile Number Portability MSRN Mobile Station Roaming Number MTP Message Transfer Part NANP North American Numbering Plan NGNP Non-Geographic Number Portability NOA Nature of Address NP Number Portability NPA Numbering Plan Area NPDB Number Portability Database NRN Network Routing Number OR Onward Routing OSS Operation Support System PCS Personal Communication Services PNTI Ported Number Translation Indicator PODP Public Office Dialing Plan PUC Public Utility Commission QoR Query on Release RN Routing Number RTP Return to Pivot SCCP Signaling Connection Control Part SCP Service Control Point SIP Session Initiation Protocol SMR Special Mobile Radio SPNP Service Provider Number Portability SRF Signaling Relaying Function SRI Send Routing Information SS7 Signaling System Number 7 STP Signaling Transfer Point TCAP Transaction Capabilities Application Part TDMA Time Division Multiple Access TN Telephone Number TRIP Telephony Routing Information Protocol URL Universal Resource Locator U.S. United States