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 |
| 603-966
| 9 |
Nashua |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2014-10-27 |
|
| 603-967
| A |
Hampton |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-967
| 4 |
Hampton |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-967
| 8 |
Hampton |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2019-07-05 |
|
| 603-968
| A |
Ashland |
NH |
ASLDNHHIRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-968
| 0 |
Ashland |
NH |
MNCHNHCOXCZ |
996E BANDWIDTH.COM CLEC, LLC - NH |
122 |
|
2002-09-10 |
|
| 603-968
| 1 |
Ashland |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2023-01-04 |
|
| 603-968
| 2 |
Ashland |
NH |
ASLDNHHIRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-968
| 3 |
Ashland |
NH |
ASLDNHHIRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-968
| 4 |
Ashland |
NH |
MNCHNHAC7MD |
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-06-27 |
|
| 603-968
| 5 |
Ashland |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-03 |
|
| 603-968
| 6 |
Ashland |
NH |
ROCHNHWE4MD |
314C IDT AMERICA, CORP. - NH |
122 |
|
2008-04-18 |
|
| 603-968
| 7 |
Ashland |
NH |
ASLDNHHIRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-968
| 9 |
Ashland |
NH |
ASLDNHHIRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-969
| A |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-02-09 |
|
| 603-969
| 0 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-969
| 1 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-969
| 2 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-969
| 3 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-969
| 4 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-969
| 5 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-969
| 6 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-969
| 7 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-969
| 8 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-969
| 9 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-970
| A |
Dover |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-970
| 0 |
Dover |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2006-05-19 |
|
| 603-970
| 1 |
Dover |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-09-01 |
|
| 603-970
| 2 |
Dover |
NH |
DOVRNHTHDS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2010-12-15 |
|
| 603-970
| 3 |
Dover |
NH |
DOVRNHTHDS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2010-12-15 |
|
| 603-970
| 4 |
Dover |
NH |
DOVRNHTHDS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2010-12-15 |
|
| 603-970
| 5 |
Dover |
NH |
DOVRNHTHDS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2010-12-15 |
|
| 603-970
| 6 |
Dover |
NH |
DOVRNHTHDS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2010-12-15 |
|
| 603-970
| 7 |
Dover |
NH |
DOVRNHTHDS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2010-12-15 |
|
| 603-970
| 8 |
Dover |
NH |
DOVRNHTHDS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2010-12-15 |
|
| 603-970
| 9 |
Dover |
NH |
DOVRNHTHDS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2010-12-15 |
|
| 603-971
| A |
Rindge |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-971
| 0 |
Rindge |
NH |
MNCHNHCO42Z |
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2024-01-07 |
|
| 603-971
| 1 |
Rindge |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-971
| 2 |
Rindge |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2023-11-11 |
|
| 603-971
| 3 |
Rindge |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-971
| 4 |
Rindge |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-971
| 6 |
Rindge |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2019-05-16 |
|
| 603-971
| 9 |
Rindge |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-973
| A |
Rochester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
|
|
| 603-973
| 0 |
Rochester |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2011-08-05 |
|
| 603-973
| 1 |
Rochester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
|
|
| 603-973
| 2 |
Rochester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
|
|
| 603-973
| 3 |
Rochester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
|
|
| 603-973
| 4 |
Rochester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
|
|
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Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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