Local Calling Guide
Area code/prefix search
NPA: 603
[Rate centres in NPA 603]
[Dial plan for NPA 603]
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 603-393
| A |
Laconia |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-393
| 0 |
Laconia |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-09-01 |
|
| 603-393
| 1 |
Laconia |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2009-12-03 |
|
| 603-393
| 2 |
Laconia |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-12-04 |
|
| 603-393
| 3 |
Laconia |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-06-05 |
|
| 603-393
| 4 |
Laconia |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2009-02-02 |
|
| 603-393
| 5 |
Laconia |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-393
| 6 |
Laconia |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-393
| 7 |
Laconia |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-393
| 8 |
Laconia |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-393
| 9 |
Laconia |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-394
| A |
South Hampton |
NH |
EXTRNHCEDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-394
| 0 |
South Hampton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-394
| 1 |
South Hampton |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2005-02-28 |
|
| 603-394
| 2 |
South Hampton |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2002-08-05 |
|
| 603-394
| 3 |
South Hampton |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2015-05-04 |
|
| 603-394
| 4 |
South Hampton |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2021-05-28 |
|
| 603-394
| 5 |
South Hampton |
NH |
|
5562 METROPCS, INC. |
122 |
|
2005-06-24 |
|
| 603-394
| 6 |
South Hampton |
NH |
|
5562 METROPCS, INC. |
122 |
|
2006-02-19 |
|
| 603-394
| 7 |
South Hampton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-395
| A |
Exeter |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-395
| 0 |
Exeter |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2015-03-01 |
|
| 603-395
| 1 |
Exeter |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2015-05-12 |
|
| 603-395
| 2 |
Exeter |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-09-10 |
|
| 603-395
| 3 |
Exeter |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2015-08-12 |
|
| 603-395
| 4 |
Exeter |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2025-05-16 |
|
| 603-395
| 5 |
Exeter |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2013-12-10 |
|
| 603-395
| 6 |
Exeter |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2013-07-22 |
|
| 603-395
| 7 |
Exeter |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2016-01-17 |
|
| 603-395
| 8 |
Exeter |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2015-11-17 |
|
| 603-395
| 9 |
Exeter |
NH |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-396
| A |
Merrimack |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 0 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 1 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 2 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 3 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 4 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 5 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 6 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 7 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 8 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-396
| 9 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-397
| A |
Durham |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-397
| 0 |
Durham |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-09-10 |
|
| 603-397
| 1 |
Durham |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-05-29 |
|
| 603-397
| 2 |
Durham |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-03-20 |
|
| 603-397
| 3 |
Durham |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-04 |
|
| 603-397
| 4 |
Durham |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2002-09-10 |
|
| 603-397
| 5 |
Durham |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-397
| 7 |
Durham |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-12-03 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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