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 |
| 603-274
| 9 |
South Hampton |
NH |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-275
| A |
Derry |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-275
| 0 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-275
| 1 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-275
| 2 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-275
| 3 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2005-12-10 |
|
| 603-275
| 4 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2005-12-10 |
|
| 603-275
| 5 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2006-11-09 |
|
| 603-275
| 6 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-275
| 7 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2008-02-03 |
|
| 603-275
| 8 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2008-06-22 |
|
| 603-275
| 9 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-276
| A |
West Lebanon |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-276
| 0 |
West Lebanon |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-276
| 1 |
West Lebanon |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2007-03-08 |
|
| 603-276
| 2 |
West Lebanon |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-05-24 |
|
| 603-276
| 3 |
West Lebanon |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-05 |
|
| 603-276
| 4 |
West Lebanon |
NH |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
2008-10-15 |
|
| 603-276
| 5 |
West Lebanon |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2008-10-06 |
|
| 603-276
| 6 |
West Lebanon |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2019-09-29 |
|
| 603-276
| 7 |
West Lebanon |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2008-02-21 |
|
| 603-276
| 8 |
West Lebanon |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2008-01-08 |
|
| 603-276
| 9 |
West Lebanon |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2006-03-21 |
|
| 603-277
| A |
Hanover |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-277
| 0 |
Hanover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2009-01-05 |
|
| 603-277
| 1 |
Hanover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2012-09-22 |
|
| 603-277
| 2 |
Hanover |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2013-10-03 |
|
| 603-277
| 3 |
Hanover |
NH |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
2008-03-15 |
|
| 603-277
| 6 |
Hanover |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2022-03-03 |
|
| 603-277
| 7 |
Hanover |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-04-23 |
|
| 603-277
| 8 |
Hanover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2017-09-19 |
|
| 603-277
| 9 |
Hanover |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2007-01-30 |
|
| 603-278
| A |
Bretton Woods |
NH |
BTWDNHXADS0 |
0038 BRETTON WOODS TEL. CO. |
122 |
|
|
|
| 603-279
| A |
Meredith |
NH |
MRDTNHWARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-280
| A |
Barrington |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-280
| 0 |
Barrington |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-06-26 |
|
| 603-280
| 1 |
Barrington |
NH |
|
073H TELNYX LLC |
122 |
|
2024-06-30 |
|
| 603-280
| 3 |
Barrington |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2025-10-03 |
|
| 603-280
| 4 |
Barrington |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-280
| 6 |
Barrington |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2020-04-27 |
|
| 603-281
| A |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 0 |
Nashua |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 1 |
Nashua |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 2 |
Nashua |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 3 |
Nashua |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 4 |
Nashua |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 5 |
Nashua |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-08-07 |
|
| 603-281
| 6 |
Nashua |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2015-03-16 |
|
| 603-281
| 7 |
Nashua |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2015-03-16 |
|
| 603-281
| 8 |
Nashua |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2015-03-16 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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