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 |
| 603-339
| 6 |
Derry |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2012-07-15 |
|
| 603-339
| 7 |
Derry |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2009-12-03 |
|
| 603-339
| 8 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2007-07-26 |
|
| 603-339
| 9 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2007-09-12 |
|
| 603-340
| A |
Suncook |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-340
| 0 |
Suncook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-340
| 1 |
Suncook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-340
| 2 |
Suncook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-340
| 3 |
Suncook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-340
| 4 |
Suncook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-340
| 5 |
Suncook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-340
| 6 |
Suncook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-05-03 |
|
| 603-340
| 7 |
Suncook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2010-02-13 |
|
| 603-340
| 8 |
Suncook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2011-06-12 |
|
| 603-340
| 9 |
Suncook |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-08-11 |
|
| 603-341
| A |
Merrimack |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-341
| 0 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2008-12-15 |
|
| 603-341
| 1 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2008-12-15 |
|
| 603-341
| 2 |
Merrimack |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2011-09-02 |
|
| 603-341
| 3 |
Merrimack |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2011-02-14 |
|
| 603-341
| 4 |
Merrimack |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-12-17 |
|
| 603-341
| 5 |
Merrimack |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-341
| 6 |
Merrimack |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2016-01-22 |
|
| 603-341
| 7 |
Merrimack |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2021-08-02 |
|
| 603-341
| 8 |
Merrimack |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2013-06-28 |
|
| 603-341
| 9 |
Merrimack |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2014-10-01 |
|
| 603-342
| A |
Berlin |
NH |
BRLNNHHERS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-342
| 0 |
Berlin |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2005-01-14 |
|
| 603-342
| 1 |
Berlin |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-342
| 2 |
Berlin |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-342
| 3 |
Berlin |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-342
| 4 |
Berlin |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-342
| 5 |
Berlin |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-11-11 |
|
| 603-342
| 8 |
Berlin |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-342
| 9 |
Berlin |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
2007-10-17 |
|
| 603-343
| A |
Dover |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-343
| 0 |
Dover |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2004-10-09 |
|
| 603-343
| 1 |
Dover |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-343
| 2 |
Dover |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-343
| 3 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2005-07-23 |
|
| 603-343
| 4 |
Dover |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2006-06-06 |
|
| 603-343
| 5 |
Dover |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-343
| 6 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2007-03-29 |
|
| 603-343
| 7 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2007-12-21 |
|
| 603-343
| 8 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2007-12-21 |
|
| 603-343
| 9 |
Dover |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2003-05-02 |
|
| 603-344
| A |
Suncook |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-345
| A |
Merrimack |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-346
| A |
Plymouth |
NH |
MNCHNHAC9MD |
321J HD CARRIER LLC |
122 |
|
|
|
| 603-346
| 0 |
Plymouth |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2016-01-26 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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