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 |
| 603-238
| 0 |
Plymouth |
NH |
|
314C IDT AMERICA, CORP. - NH |
122 |
|
2008-04-18 |
|
| 603-238
| 2 |
Plymouth |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-238
| 3 |
Plymouth |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2006-10-30 |
|
| 603-238
| 4 |
Plymouth |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2002-09-19 |
|
| 603-238
| 5 |
Plymouth |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2004-10-09 |
|
| 603-238
| 6 |
Plymouth |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-238
| 7 |
Plymouth |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2009-01-05 |
|
| 603-238
| 8 |
Plymouth |
NH |
|
5562 METROPCS, INC. |
122 |
|
2005-07-16 |
|
| 603-238
| 9 |
Plymouth |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-239
| A |
Winchester |
NH |
WNCHNHMIRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-239
| 0 |
Winchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2004-07-10 |
|
| 603-239
| 1 |
Winchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2006-08-08 |
|
| 603-239
| 2 |
Winchester |
NH |
|
996E BANDWIDTH.COM CLEC, LLC - NH |
122 |
|
2002-09-19 |
|
| 603-239
| 3 |
Winchester |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-05 |
|
| 603-239
| 4 |
Winchester |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-239
| 6 |
Winchester |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-239
| 7 |
Winchester |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-239
| 8 |
Winchester |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-239
| 9 |
Winchester |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-240
| A |
Manchester |
NH |
MNCHNHCODS2 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-241
| A |
Dover |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-241
| 0 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2022-05-23 |
|
| 603-241
| 1 |
Dover |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2022-05-23 |
|
| 603-241
| 2 |
Dover |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2022-07-27 |
|
| 603-241
| 3 |
Dover |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2022-09-29 |
|
| 603-241
| 4 |
Dover |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2022-09-29 |
|
| 603-241
| 5 |
Dover |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2022-09-27 |
|
| 603-241
| 6 |
Dover |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2022-10-11 |
|
| 603-241
| 7 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2022-05-22 |
|
| 603-241
| 8 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2022-05-22 |
|
| 603-241
| 9 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2022-05-22 |
|
| 603-242
| A |
Troy |
NH |
TROYNHPRRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-242
| 0 |
Troy |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2002-10-14 |
|
| 603-242
| 1 |
Troy |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-09-12 |
|
| 603-242
| 2 |
Troy |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-05 |
|
| 603-242
| 3 |
Troy |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-242
| 4 |
Troy |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2021-05-28 |
|
| 603-242
| 5 |
Troy |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2017-09-17 |
|
| 603-242
| 6 |
Troy |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-242
| 7 |
Troy |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-242
| 8 |
Troy |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2017-09-17 |
|
| 603-242
| 9 |
Troy |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2014-06-21 |
|
| 603-243
| A |
Woodsville |
NH |
MNCHNHCO43Z |
792K CHARTER IP ENABLED SERVICES, LLC |
122 |
|
|
|
| 603-243
| 0 |
Woodsville |
NH |
|
792K CHARTER IP ENABLED SERVICES, LLC |
122 |
|
2011-09-03 |
|
| 603-243
| 1 |
Woodsville |
NH |
|
073H TELNYX LLC |
122 |
|
2024-07-22 |
|
| 603-243
| 6 |
Woodsville |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2019-05-17 |
|
| 603-244
| A |
Raymond |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-244
| 0 |
Raymond |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-09-29 |
|
| 603-244
| 1 |
Raymond |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-244
| 2 |
Raymond |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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