Local Calling Guide
Area code/prefix search
Merrimack, NH
<< 1 2 3 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 603-377
| 4 |
|
637E ONVOY, LLC - NH |
122 |
|
2022-08-28 |
|
| 603-377
| 5 |
|
073H TELNYX LLC |
122 |
|
2023-08-26 |
|
| 603-377
| 6 |
|
5562 METROPCS, INC. |
122 |
|
|
|
| 603-377
| 7 |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2012-04-30 |
|
| 603-377
| 8 |
|
637E ONVOY, LLC - NH |
122 |
|
2021-11-13 |
|
| 603-377
| 9 |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2021-05-27 |
|
| 603-396
| A |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 0 |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 1 |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 2 |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 3 |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 4 |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 5 |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 6 |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 7 |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 8 |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 9 |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-420
| A |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-420
| 0 |
|
073H TELNYX LLC |
122 |
|
2022-10-21 |
|
| 603-420
| 1 |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-09-24 |
|
| 603-420
| 2 |
|
637E ONVOY, LLC - NH |
122 |
|
2023-03-31 |
|
| 603-420
| 4 |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2025-10-29 |
|
| 603-420
| 5 |
|
829J PAETEC ITEL, LLC |
122 |
|
2006-05-01 |
|
| 603-420
| 7 |
|
637E ONVOY, LLC - NH |
122 |
|
2022-12-02 |
|
| 603-420
| 8 |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2009-03-22 |
|
| 603-420
| 9 |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-423
| A |
MRMCNHYADS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-423
| 0 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-423
| 1 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-423
| 2 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-423
| 3 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-423
| 4 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-423
| 5 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-423
| 6 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-423
| 7 |
|
637E ONVOY, LLC - NH |
122 |
|
2024-08-09 |
|
| 603-423
| 8 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-423
| 9 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-424
| A |
MRMCNHYADS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-429
| A |
MRMCNHYADS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-440
| A |
MRMCNHYADS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-440
| 0 |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2017-08-22 |
|
| 603-440
| 1 |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2016-12-13 |
|
| 603-440
| 2 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-440
| 3 |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2003-08-03 |
|
| 603-440
| 4 |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2012-06-19 |
|
| 603-440
| 5 |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-02-17 |
|
| 603-440
| 6 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-440
| 7 |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-440
| 8 |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2002-12-09 |
|
| 603-440
| 9 |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-08-02 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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