Local Calling Guide
Area code/prefix search
NPA: 603
[Rate centres in NPA 603]
[Dial plan for NPA 603]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 603-251
| 0 |
Charlestown |
NH |
|
073H TELNYX LLC |
122 |
|
2024-07-27 |
|
| 603-251
| 1 |
Charlestown |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2012-04-27 |
|
| 603-252
| A |
West Lebanon |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-253
| A |
Center Harbor |
NH |
CNHRNHPLRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-253
| 1 |
Center Harbor |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2006-10-30 |
|
| 603-253
| 2 |
Center Harbor |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-04 |
|
| 603-253
| 3 |
Center Harbor |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-253
| 4 |
Center Harbor |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-253
| 5 |
Center Harbor |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-253
| 6 |
Center Harbor |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-253
| 7 |
Center Harbor |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-253
| 8 |
Center Harbor |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-253
| 9 |
Center Harbor |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-254
| A |
Plymouth |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-254
| 0 |
Plymouth |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2013-03-12 |
|
| 603-254
| 1 |
Plymouth |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2015-05-13 |
|
| 603-254
| 2 |
Plymouth |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-254
| 3 |
Plymouth |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-254
| 4 |
Plymouth |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-254
| 5 |
Plymouth |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-254
| 6 |
Plymouth |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-254
| 7 |
Plymouth |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-254
| 8 |
Plymouth |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-254
| 9 |
Plymouth |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-255
| A |
Manchester |
NH |
MNCHNHCOY0X |
425J CSC WIRELESS, LLC |
122 |
|
|
|
| 603-255
| 0 |
Manchester |
NH |
|
624H ONVOY SPECTRUM, LLC |
122 |
|
2022-01-07 |
|
| 603-255
| 1 |
Manchester |
NH |
|
624H ONVOY SPECTRUM, LLC |
122 |
|
2022-01-07 |
|
| 603-255
| 2 |
Manchester |
NH |
|
425J CSC WIRELESS, LLC |
122 |
|
2020-04-17 |
|
| 603-255
| 3 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2020-05-10 |
|
| 603-255
| 4 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2020-06-01 |
|
| 603-255
| 5 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2020-07-02 |
|
| 603-255
| 6 |
Manchester |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2020-05-23 |
|
| 603-255
| 7 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2020-09-18 |
|
| 603-255
| 8 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2021-03-08 |
|
| 603-255
| 9 |
Manchester |
NH |
|
478J NUSO, LLC |
122 |
|
2020-10-15 |
|
| 603-256
| A |
West Chesterfield |
NH |
BRBOVTMADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-256
| 1 |
West Chesterfield |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2024-01-07 |
|
| 603-256
| 2 |
West Chesterfield |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2023-03-30 |
|
| 603-256
| 3 |
West Chesterfield |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-256
| 4 |
West Chesterfield |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-256
| 5 |
West Chesterfield |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2022-01-15 |
|
| 603-256
| 6 |
West Chesterfield |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-256
| 7 |
West Chesterfield |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2001-02-06 |
|
| 603-256
| 8 |
West Chesterfield |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-256
| 9 |
West Chesterfield |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2023-09-28 |
|
| 603-257
| A |
Plaistow |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-257
| 0 |
Plaistow |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2016-11-16 |
|
| 603-257
| 1 |
Plaistow |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-257
| 2 |
Plaistow |
NH |
|
073H TELNYX LLC |
122 |
|
2023-03-20 |
|
| 603-257
| 5 |
Plaistow |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2010-08-10 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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