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 |
| 603-327
| A |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-327
| 0 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-327
| 1 |
Salem |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2015-06-01 |
|
| 603-327
| 4 |
Salem |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-03-03 |
|
| 603-327
| 5 |
Salem |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2011-03-04 |
|
| 603-327
| 6 |
Salem |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2014-04-01 |
|
| 603-327
| 7 |
Salem |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2005-07-02 |
|
| 603-327
| 8 |
Salem |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2013-06-28 |
|
| 603-327
| 9 |
Salem |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2012-05-01 |
|
| 603-328
| A |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-328
| 0 |
Salem |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2005-01-24 |
|
| 603-328
| 1 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-328
| 2 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-328
| 3 |
Salem |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2004-04-18 |
|
| 603-328
| 4 |
Salem |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2023-02-09 |
|
| 603-328
| 5 |
Salem |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2015-08-04 |
|
| 603-328
| 6 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-328
| 7 |
Salem |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2024-04-23 |
|
| 603-328
| 8 |
Salem |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2014-11-24 |
|
| 603-328
| 9 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2000-07-21 |
|
| 603-329
| A |
Hampstead |
NH |
HMPSNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-329
| 0 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-329
| 1 |
Hampstead |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-09-24 |
|
| 603-329
| 2 |
Hampstead |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2018-10-08 |
|
| 603-329
| 3 |
Hampstead |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-04 |
|
| 603-329
| 4 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-329
| 5 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-329
| 6 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-329
| 7 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-329
| 8 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-329
| 9 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-330
| A |
Rochester |
NH |
ROCHNHWEDS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-331
| A |
Colebrook |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-331
| 0 |
Colebrook |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2010-08-05 |
|
| 603-331
| 1 |
Colebrook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2009-03-16 |
|
| 603-331
| 2 |
Colebrook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2010-09-02 |
|
| 603-331
| 3 |
Colebrook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2014-05-14 |
|
| 603-331
| 4 |
Colebrook |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-331
| 5 |
Colebrook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2012-10-12 |
|
| 603-331
| 6 |
Colebrook |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2020-10-26 |
|
| 603-332
| A |
Rochester |
NH |
ROCHNHWEDS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-333
| A |
Concord |
NH |
MNCHNHBODS0 |
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
|
|
| 603-333
| 0 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2018-01-29 |
|
| 603-333
| 1 |
Concord |
NH |
|
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
2018-01-26 |
|
| 603-333
| 2 |
Concord |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2018-01-27 |
|
| 603-333
| 3 |
Concord |
NH |
|
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
2018-02-02 |
|
| 603-333
| 4 |
Concord |
NH |
|
5562 METROPCS, INC. |
122 |
|
2018-06-10 |
|
| 603-333
| 5 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2018-07-13 |
|
| 603-333
| 6 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2018-10-05 |
|
| 603-333
| 7 |
Concord |
NH |
|
5562 METROPCS, INC. |
122 |
|
2018-10-13 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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