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 |
| 603-835
| 4 |
Alstead |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2002-09-16 |
|
| 603-835
| 5 |
Alstead |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2006-12-16 |
|
| 603-835
| 6 |
Alstead |
NH |
ALSTNHLIRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-835
| 7 |
Alstead |
NH |
ALSTNHLIRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-835
| 8 |
Alstead |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2006-10-30 |
|
| 603-835
| 9 |
Alstead |
NH |
ALSTNHLIRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-836
| A |
Manchester |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-836
| 0 |
Manchester |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-01-14 |
|
| 603-836
| 1 |
Manchester |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2013-05-07 |
|
| 603-836
| 2 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2005-06-24 |
|
| 603-836
| 3 |
Manchester |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2014-09-27 |
|
| 603-836
| 4 |
Manchester |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-836
| 5 |
Manchester |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2009-04-18 |
|
| 603-836
| 6 |
Manchester |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2013-05-07 |
|
| 603-836
| 7 |
Manchester |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2015-02-28 |
|
| 603-836
| 8 |
Manchester |
NH |
MNCHNHBODS0 |
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
2018-03-24 |
|
| 603-836
| 9 |
Manchester |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2019-12-09 |
|
| 603-837
| A |
Whitefield |
NH |
WHFDNHPLRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-837
| 0 |
Whitefield |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2002-05-22 |
|
| 603-837
| 1 |
Whitefield |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2023-07-10 |
|
| 603-837
| 2 |
Whitefield |
NH |
WHFDNHPLRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-837
| 3 |
Whitefield |
NH |
WHFDNHPLRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-837
| 6 |
Whitefield |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-05 |
|
| 603-837
| 7 |
Whitefield |
NH |
MNCHNHCO42Z |
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-837
| 8 |
Whitefield |
NH |
WHFDNHPLRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-837
| 9 |
Whitefield |
NH |
WHFDNHPLRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-838
| A |
Lisbon |
NH |
LSBNNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-838
| 0 |
Lisbon |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2019-03-22 |
|
| 603-838
| 2 |
Lisbon |
NH |
LSBNNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-838
| 3 |
Lisbon |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-04 |
|
| 603-838
| 4 |
Lisbon |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2021-05-27 |
|
| 603-838
| 5 |
Lisbon |
NH |
LSBNNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-838
| 6 |
Lisbon |
NH |
LSBNNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-838
| 7 |
Lisbon |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2004-07-14 |
|
| 603-838
| 8 |
Lisbon |
NH |
MNCHNHCO42Z |
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-838
| 9 |
Lisbon |
NH |
LSBNNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2014-06-20 |
|
| 603-839
| A |
Farmington |
NH |
DOVRNHTHXMX |
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
|
|
| 603-839
| 1 |
Farmington |
NH |
ROCHNHWE4MD |
314C IDT AMERICA, CORP. - NH |
122 |
|
2008-04-18 |
|
| 603-839
| 5 |
Farmington |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-07-27 |
|
| 603-839
| 6 |
Farmington |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2020-03-08 |
|
| 603-839
| 8 |
Farmington |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2025-06-23 |
|
| 603-839
| 9 |
Farmington |
NH |
DOVRNHTHXMX |
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-840
| A |
Epsom |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-840
| 0 |
Epsom |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2010-01-25 |
|
| 603-840
| 1 |
Epsom |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-04-29 |
|
| 603-840
| 2 |
Epsom |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-04-29 |
|
| 603-840
| 3 |
Epsom |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-07-22 |
|
| 603-840
| 4 |
Epsom |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-08-16 |
|
| 603-840
| 5 |
Epsom |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-08-16 |
|
| 603-840
| 6 |
Epsom |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-08-16 |
|
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Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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