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 |
| 603-310
| A |
Bedford |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-310
| 0 |
Bedford |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2004-10-09 |
|
| 603-310
| 1 |
Bedford |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2022-10-27 |
|
| 603-310
| 2 |
Bedford |
NH |
MNCHNHCOX1Y |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2002-11-15 |
|
| 603-310
| 3 |
Bedford |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2007-05-04 |
|
| 603-310
| 4 |
Bedford |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2002-09-10 |
|
| 603-310
| 5 |
Bedford |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2015-03-03 |
|
| 603-310
| 6 |
Bedford |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
2020-03-24 |
|
| 603-310
| 7 |
Bedford |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2015-01-12 |
|
| 603-310
| 8 |
Bedford |
NH |
MNCHNHAC3MD |
939H COMMIO, LLC |
122 |
|
2022-11-05 |
|
| 603-310
| 9 |
Bedford |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-01-05 |
|
| 603-312
| A |
Dover |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-313
| A |
Keene |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-313
| 0 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-313
| 1 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-313
| 2 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-313
| 3 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-313
| 4 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-313
| 5 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-313
| 6 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-313
| 7 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-313
| 8 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-313
| 9 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-314
| A |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-314
| 0 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-314
| 1 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-314
| 2 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-314
| 3 |
Manchester |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2020-03-04 |
|
| 603-314
| 4 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-314
| 5 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-314
| 6 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-314
| 7 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-314
| 8 |
Manchester |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2020-04-02 |
|
| 603-315
| A |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-316
| A |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-316
| 0 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2017-11-30 |
|
| 603-316
| 1 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2018-01-04 |
|
| 603-316
| 2 |
Milford |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2021-08-02 |
|
| 603-316
| 3 |
Milford |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2021-05-07 |
|
| 603-316
| 4 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2018-10-05 |
|
| 603-316
| 5 |
Milford |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-01-15 |
|
| 603-316
| 6 |
Milford |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2021-08-02 |
|
| 603-316
| 7 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2020-12-25 |
|
| 603-316
| 8 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2019-05-18 |
|
| 603-316
| 9 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2021-08-24 |
|
| 603-317
| A |
Milan |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-317
| 1 |
Milan |
NH |
MNCHNHCO42Z |
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2024-01-01 |
|
| 603-317
| 2 |
Milan |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2026-06-04 |
|
| 603-317
| 4 |
Milan |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2002-09-19 |
|
| 603-317
| 5 |
Milan |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-09-15 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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