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 |
| 603-281
| 9 |
Nashua |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2015-03-16 |
|
| 603-282
| A |
Canaan |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-282
| 1 |
Canaan |
NH |
|
073H TELNYX LLC |
122 |
|
2024-07-07 |
|
| 603-282
| 2 |
Canaan |
NH |
|
5562 METROPCS, INC. |
122 |
|
2025-04-11 |
|
| 603-282
| 3 |
Canaan |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-12-28 |
|
| 603-282
| 4 |
Canaan |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2002-09-10 |
|
| 603-282
| 7 |
Canaan |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2025-10-04 |
|
| 603-282
| 8 |
Canaan |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2023-11-11 |
|
| 603-282
| 9 |
Canaan |
NH |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-283
| A |
Keene |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-283
| 0 |
Keene |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2000-08-09 |
|
| 603-283
| 1 |
Keene |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-05-01 |
|
| 603-283
| 2 |
Keene |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2006-03-07 |
|
| 603-283
| 3 |
Keene |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2006-09-07 |
|
| 603-283
| 4 |
Keene |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2003-12-16 |
|
| 603-283
| 5 |
Keene |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2007-03-30 |
|
| 603-283
| 6 |
Keene |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-283
| 7 |
Keene |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-283
| 8 |
Keene |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2009-01-05 |
|
| 603-283
| 9 |
Keene |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2005-11-25 |
|
| 603-284
| A |
Center Sandwich |
NH |
CNSWNHSLRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-284
| 2 |
Center Sandwich |
NH |
|
073H TELNYX LLC |
122 |
|
2024-08-02 |
|
| 603-284
| 4 |
Center Sandwich |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2021-05-27 |
|
| 603-284
| 6 |
Center Sandwich |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-284
| 7 |
Center Sandwich |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-284
| 9 |
Center Sandwich |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-285
| A |
Dover |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-285
| 0 |
Dover |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-03-26 |
|
| 603-285
| 1 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2007-03-29 |
|
| 603-285
| 2 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2007-03-29 |
|
| 603-285
| 3 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2007-03-29 |
|
| 603-285
| 4 |
Dover |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2004-04-11 |
|
| 603-285
| 5 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2005-07-08 |
|
| 603-285
| 6 |
Dover |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2012-08-27 |
|
| 603-285
| 7 |
Dover |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2014-08-29 |
|
| 603-285
| 8 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2016-12-10 |
|
| 603-285
| 9 |
Dover |
NH |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-286
| A |
Tilton |
NH |
TLTNNHPRRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-286
| 0 |
Tilton |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2009-01-05 |
|
| 603-286
| 1 |
Tilton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-286
| 2 |
Tilton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-286
| 3 |
Tilton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-286
| 4 |
Tilton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-286
| 5 |
Tilton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-286
| 7 |
Tilton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-286
| 8 |
Tilton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-286
| 9 |
Tilton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-287
| A |
Claremont |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-287
| 1 |
Claremont |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-09-10 |
|
| 603-287
| 2 |
Claremont |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2025-06-02 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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