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 |
| 603-514
| 1 |
Nashua |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2021-03-07 |
|
| 603-514
| 2 |
Nashua |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2021-05-07 |
|
| 603-514
| 3 |
Nashua |
NH |
|
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
2021-11-03 |
|
| 603-514
| 4 |
Nashua |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2021-04-18 |
|
| 603-514
| 5 |
Nashua |
NH |
|
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
2021-03-08 |
|
| 603-514
| 6 |
Nashua |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2022-01-15 |
|
| 603-514
| 7 |
Nashua |
NH |
|
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
2022-01-28 |
|
| 603-514
| 8 |
Nashua |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2021-11-02 |
|
| 603-514
| 9 |
Nashua |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2021-11-02 |
|
| 603-515
| A |
Wolfeboro |
NH |
WLBONHGSRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-515
| 0 |
Wolfeboro |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2023-04-27 |
|
| 603-515
| 1 |
Wolfeboro |
NH |
|
314C IDT AMERICA, CORP. - NH |
122 |
|
2008-04-18 |
|
| 603-515
| 2 |
Wolfeboro |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2005-09-22 |
|
| 603-515
| 3 |
Wolfeboro |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-515
| 4 |
Wolfeboro |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2002-09-19 |
|
| 603-515
| 5 |
Wolfeboro |
NH |
|
073H TELNYX LLC |
122 |
|
2023-10-16 |
|
| 603-515
| 6 |
Wolfeboro |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2009-01-05 |
|
| 603-515
| 7 |
Wolfeboro |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-515
| 8 |
Wolfeboro |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2010-08-05 |
|
| 603-515
| 9 |
Wolfeboro |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2000-05-24 |
|
| 603-516
| A |
Dover |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-517
| A |
Merrimack |
NH |
MNCHNHCO29Z |
9748 AMERICAN MESSAGING SERVICES, LLC |
122 |
|
|
|
| 603-518
| A |
Manchester |
NH |
MNCHNHCO37Z |
7421 AT&T - LOCAL |
122 |
|
|
|
| 603-518
| 0 |
Manchester |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2020-02-09 |
|
| 603-518
| 1 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-05-01 |
|
| 603-518
| 2 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2002-06-15 |
|
| 603-518
| 3 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2006-05-03 |
|
| 603-518
| 4 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2006-10-26 |
|
| 603-518
| 5 |
Manchester |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2008-10-16 |
|
| 603-518
| 6 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2021-04-01 |
|
| 603-518
| 7 |
Manchester |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2012-05-24 |
|
| 603-518
| 8 |
Manchester |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2013-02-09 |
|
| 603-518
| 9 |
Manchester |
NH |
|
7421 AT&T - LOCAL |
122 |
|
|
|
| 603-519
| A |
Exeter |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-519
| 0 |
Exeter |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2018-11-18 |
|
| 603-519
| 1 |
Exeter |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2019-10-26 |
|
| 603-519
| 2 |
Exeter |
NH |
|
5562 METROPCS, INC. |
122 |
|
2021-06-10 |
|
| 603-519
| 3 |
Exeter |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2022-02-23 |
|
| 603-519
| 4 |
Exeter |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2019-07-05 |
|
| 603-519
| 5 |
Exeter |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2021-05-21 |
|
| 603-519
| 6 |
Exeter |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2021-05-21 |
|
| 603-519
| 7 |
Exeter |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2020-11-05 |
|
| 603-519
| 8 |
Exeter |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2019-09-24 |
|
| 603-519
| 9 |
Exeter |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2021-08-02 |
|
| 603-520
| A |
Laconia |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-521
| A |
Nashua |
NH |
MNCHNHCOA02 |
7421 AT&T - LOCAL |
122 |
|
|
|
| 603-521
| 0 |
Nashua |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2006-09-01 |
|
| 603-521
| 1 |
Nashua |
NH |
|
7421 AT&T - LOCAL |
122 |
|
|
|
| 603-521
| 2 |
Nashua |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-02-02 |
|
| 603-521
| 3 |
Nashua |
NH |
|
7421 AT&T - LOCAL |
122 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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