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 |
| 603-821
| A |
Nashua |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-821
| 0 |
Nashua |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-02-08 |
|
| 603-821
| 1 |
Nashua |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2004-10-24 |
|
| 603-821
| 2 |
Nashua |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2005-08-17 |
|
| 603-821
| 3 |
Nashua |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2003-06-02 |
|
| 603-821
| 4 |
Nashua |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2003-01-01 |
|
| 603-821
| 5 |
Nashua |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-821
| 6 |
Nashua |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-821
| 7 |
Nashua |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2003-09-21 |
|
| 603-821
| 8 |
Nashua |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2005-08-17 |
|
| 603-821
| 9 |
Nashua |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-08-29 |
|
| 603-822
| A |
Rochester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-822
| 0 |
Rochester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-822
| 1 |
Rochester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2000-05-24 |
|
| 603-822
| 2 |
Rochester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2000-05-29 |
|
| 603-822
| 3 |
Rochester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2005-02-01 |
|
| 603-822
| 4 |
Rochester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2007-02-16 |
|
| 603-822
| 5 |
Rochester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2010-05-03 |
|
| 603-822
| 6 |
Rochester |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-12-28 |
|
| 603-822
| 7 |
Rochester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-822
| 8 |
Rochester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-822
| 9 |
Rochester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-823
| A |
Franconia |
NH |
FRNCNHWHRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-823
| 0 |
Franconia |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2023-01-04 |
|
| 603-823
| 1 |
Franconia |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2021-04-12 |
|
| 603-823
| 2 |
Franconia |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-823
| 3 |
Franconia |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-04 |
|
| 603-823
| 4 |
Franconia |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2002-09-10 |
|
| 603-823
| 5 |
Franconia |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-823
| 6 |
Franconia |
NH |
|
939H COMMIO, LLC |
122 |
|
2022-06-09 |
|
| 603-823
| 7 |
Franconia |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-823
| 8 |
Franconia |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-823
| 9 |
Franconia |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-824
| A |
Salem |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-824
| 1 |
Salem |
NH |
|
073H TELNYX LLC |
122 |
|
2022-12-15 |
|
| 603-824
| 2 |
Salem |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2017-12-07 |
|
| 603-824
| 3 |
Salem |
NH |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
2014-10-31 |
|
| 603-824
| 4 |
Salem |
NH |
|
5562 METROPCS, INC. |
122 |
|
2017-02-23 |
|
| 603-824
| 5 |
Salem |
NH |
|
624H ONVOY SPECTRUM, LLC |
122 |
|
2022-01-07 |
|
| 603-824
| 6 |
Salem |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2013-06-01 |
|
| 603-824
| 8 |
Salem |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2023-04-10 |
|
| 603-824
| 9 |
Salem |
NH |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-825
| A |
Manchester |
NH |
MNCHNHACCMD |
516J TON80 COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-825
| 0 |
Manchester |
NH |
|
624H ONVOY SPECTRUM, LLC |
122 |
|
2022-09-16 |
|
| 603-825
| 1 |
Manchester |
NH |
|
624H ONVOY SPECTRUM, LLC |
122 |
|
2022-09-16 |
|
| 603-825
| 2 |
Manchester |
NH |
|
624H ONVOY SPECTRUM, LLC |
122 |
|
2022-09-16 |
|
| 603-825
| 3 |
Manchester |
NH |
|
516J TON80 COMMUNICATIONS, LLC |
122 |
|
2022-03-14 |
|
| 603-825
| 4 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2022-09-29 |
|
| 603-825
| 5 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2022-05-27 |
|
| 603-825
| 6 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2022-09-29 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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