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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 603-290
| 9 |
Concord |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2016-12-10 |
|
| 603-291
| A |
Greenville |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-291
| 0 |
Greenville |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2006-12-10 |
|
| 603-291
| 1 |
Greenville |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2007-09-11 |
|
| 603-291
| 2 |
Greenville |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2015-08-04 |
|
| 603-291
| 3 |
Greenville |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
2013-08-30 |
|
| 603-291
| 7 |
Greenville |
NH |
MNCHNHBO2MD |
490J BOOST SUBSCRIBERCO L.L.C. |
122 |
|
2024-01-14 |
|
| 603-291
| 9 |
Greenville |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-07-01 |
|
| 603-292
| A |
Newmarket |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-292
| 0 |
Newmarket |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-03-09 |
|
| 603-292
| 1 |
Newmarket |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2001-07-25 |
|
| 603-292
| 2 |
Newmarket |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2011-03-07 |
|
| 603-292
| 3 |
Newmarket |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-04 |
|
| 603-292
| 4 |
Newmarket |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2021-05-27 |
|
| 603-292
| 5 |
Newmarket |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-292
| 6 |
Newmarket |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2006-05-27 |
|
| 603-292
| 7 |
Newmarket |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2005-11-14 |
|
| 603-292
| 8 |
Newmarket |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2004-10-15 |
|
| 603-292
| 9 |
Newmarket |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-09-10 |
|
| 603-293
| A |
Laconia |
NH |
GLDLNHABRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-293
| 0 |
Laconia |
NH |
GLDLNHABRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-293
| 2 |
Laconia |
NH |
GLDLNHABRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-293
| 3 |
Laconia |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2014-06-01 |
|
| 603-293
| 4 |
Laconia |
NH |
GLDLNHABRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-293
| 5 |
Laconia |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2014-08-01 |
|
| 603-293
| 6 |
Laconia |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2020-03-10 |
|
| 603-293
| 7 |
Laconia |
NH |
GLDLNHABRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-293
| 8 |
Laconia |
NH |
GLDLNHABRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-293
| 9 |
Laconia |
NH |
GLDLNHABRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-294
| A |
Portsmouth |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-294
| 0 |
Portsmouth |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2012-12-15 |
|
| 603-294
| 1 |
Portsmouth |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2010-10-16 |
|
| 603-294
| 2 |
Portsmouth |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2010-04-25 |
|
| 603-294
| 3 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2008-02-04 |
|
| 603-294
| 4 |
Portsmouth |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-294
| 5 |
Portsmouth |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2008-09-03 |
|
| 603-294
| 6 |
Portsmouth |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
2010-07-12 |
|
| 603-294
| 7 |
Portsmouth |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
2010-07-12 |
|
| 603-294
| 8 |
Portsmouth |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
2010-07-12 |
|
| 603-294
| 9 |
Portsmouth |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2014-10-14 |
|
| 603-295
| A |
Durham |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-296
| A |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-296
| 0 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-296
| 1 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-296
| 2 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-296
| 3 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2004-11-05 |
|
| 603-296
| 4 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-296
| 5 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-01-02 |
|
| 603-296
| 6 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-296
| 7 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-01-02 |
|
<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 >>
Last updated: Tue, 16 Jun 2026 00:09:45 UTC
Sponsored by: VoIP Much Phone Company
Like this site? We accept donations via PayPal.