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 |
| 603-296
| 8 |
Manchester |
NH |
|
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
2026-05-22 |
|
| 603-296
| 9 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-297
| A |
Center Ossipee |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-297
| 0 |
Center Ossipee |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-297
| 1 |
Center Ossipee |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-297
| 2 |
Center Ossipee |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-297
| 4 |
Center Ossipee |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-298
| A |
West Lebanon |
NH |
WRJTVTGADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-298
| 0 |
West Lebanon |
NH |
WRJTVTGADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-298
| 2 |
West Lebanon |
NH |
WRJTVTGADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-298
| 3 |
West Lebanon |
NH |
WRJTVTGADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-298
| 4 |
West Lebanon |
NH |
WRJTVTGADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-298
| 5 |
West Lebanon |
NH |
WRJTVTGADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-298
| 6 |
West Lebanon |
NH |
WRJTVTGADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-298
| 7 |
West Lebanon |
NH |
WRJTVTGADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-298
| 8 |
West Lebanon |
NH |
WRJTVTGADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-298
| 9 |
West Lebanon |
NH |
WRJTVTGADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-299
| A |
Bartlett |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-299
| 9 |
Bartlett |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2017-09-11 |
|
| 603-300
| A |
Chester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
|
|
| 603-300
| 0 |
Chester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
2004-10-18 |
|
| 603-300
| 2 |
Chester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
2005-05-28 |
|
| 603-300
| 3 |
Chester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
2005-10-23 |
|
| 603-300
| 6 |
Chester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
2003-08-15 |
|
| 603-300
| 7 |
Chester |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
2003-08-15 |
|
| 603-300
| 8 |
Chester |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2003-08-15 |
|
| 603-300
| 9 |
Chester |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2025-08-31 |
|
| 603-301
| A |
Center Ossipee |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-301
| 0 |
Center Ossipee |
NH |
MNCHNHCO42Z |
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2016-06-24 |
|
| 603-301
| 1 |
Center Ossipee |
NH |
MNCHNHCO42Z |
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2006-10-30 |
|
| 603-301
| 4 |
Center Ossipee |
NH |
MNCHNHCOXCZ |
996E BANDWIDTH.COM CLEC, LLC - NH |
122 |
|
2002-09-10 |
|
| 603-301
| 5 |
Center Ossipee |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
2015-06-17 |
|
| 603-301
| 6 |
Center Ossipee |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2020-11-09 |
|
| 603-301
| 8 |
Center Ossipee |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-07-01 |
|
| 603-302
| A |
Manchester |
NH |
MNCHNHCODS2 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-303
| A |
Raymond |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-304
| A |
Enfield |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-304
| 0 |
Enfield |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-07-07 |
|
| 603-304
| 2 |
Enfield |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2015-08-20 |
|
| 603-304
| 3 |
Enfield |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2025-05-03 |
|
| 603-304
| 4 |
Enfield |
NH |
|
5562 METROPCS, INC. |
122 |
|
2025-05-31 |
|
| 603-304
| 5 |
Enfield |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-304
| 6 |
Enfield |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-304
| 7 |
Enfield |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-304
| 8 |
Enfield |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-304
| 9 |
Enfield |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-305
| A |
Nashua |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-305
| 0 |
Nashua |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-305
| 1 |
Nashua |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-305
| 2 |
Nashua |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
<< 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: BeeVox - Whitelabel Reseller Platform
Like this site? We accept donations via PayPal.