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 |
| 603-944
| 3 |
South Hampton |
NH |
|
5562 METROPCS, INC. |
122 |
|
2003-10-11 |
|
| 603-944
| 4 |
South Hampton |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2003-03-23 |
|
| 603-944
| 5 |
South Hampton |
NH |
|
5562 METROPCS, INC. |
122 |
|
2003-12-29 |
|
| 603-944
| 6 |
South Hampton |
NH |
|
5562 METROPCS, INC. |
122 |
|
|
|
| 603-944
| 7 |
South Hampton |
NH |
|
5562 METROPCS, INC. |
122 |
|
|
|
| 603-944
| 8 |
South Hampton |
NH |
|
5562 METROPCS, INC. |
122 |
|
2004-11-26 |
|
| 603-944
| 9 |
South Hampton |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-04-29 |
|
| 603-945
| A |
Manchester |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
|
|
| 603-945
| 0 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2007-10-07 |
|
| 603-945
| 1 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2018-09-11 |
|
| 603-945
| 2 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2018-05-13 |
|
| 603-945
| 3 |
Manchester |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2016-06-07 |
|
| 603-945
| 4 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2018-05-13 |
|
| 603-945
| 5 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2018-05-13 |
|
| 603-945
| 6 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2019-06-06 |
|
| 603-945
| 7 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2018-09-11 |
|
| 603-945
| 8 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2018-09-11 |
|
| 603-945
| 9 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2018-12-07 |
|
| 603-947
| A |
Plymouth |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-947
| 0 |
Plymouth |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-947
| 1 |
Plymouth |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-947
| 2 |
Plymouth |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-947
| 3 |
Plymouth |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-947
| 4 |
Plymouth |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-947
| 5 |
Plymouth |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-947
| 6 |
Plymouth |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-947
| 7 |
Plymouth |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-05-09 |
|
| 603-947
| 9 |
Plymouth |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-948
| A |
Rochester |
NH |
ROCHNHWE4MD |
314C IDT AMERICA, CORP. - NH |
122 |
|
|
|
| 603-948
| 0 |
Rochester |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2011-03-29 |
|
| 603-948
| 1 |
Rochester |
NH |
|
314C IDT AMERICA, CORP. - NH |
122 |
|
2009-09-20 |
|
| 603-948
| 2 |
Rochester |
NH |
|
314C IDT AMERICA, CORP. - NH |
122 |
|
2008-04-13 |
|
| 603-948
| 3 |
Rochester |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-05-24 |
|
| 603-948
| 4 |
Rochester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2023-01-04 |
|
| 603-948
| 5 |
Rochester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2014-05-01 |
|
| 603-948
| 6 |
Rochester |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2013-03-26 |
|
| 603-948
| 7 |
Rochester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2014-11-01 |
|
| 603-948
| 8 |
Rochester |
NH |
|
5562 METROPCS, INC. |
122 |
|
2013-10-19 |
|
| 603-948
| 9 |
Rochester |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2014-09-24 |
|
| 603-951
| A |
Milan |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-951
| 0 |
Milan |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2022-07-01 |
|
| 603-951
| 2 |
Milan |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2025-12-05 |
|
| 603-951
| 4 |
Milan |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-952
| A |
Salem |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-952
| 0 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2017-11-21 |
|
| 603-952
| 1 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2015-11-23 |
|
| 603-952
| 2 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2010-06-30 |
|
| 603-952
| 3 |
Salem |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2010-09-27 |
|
| 603-952
| 4 |
Salem |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-952
| 5 |
Salem |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2012-10-05 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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