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 |
| 603-679
| 0 |
Epping |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2021-11-30 |
|
| 603-679
| 1 |
Epping |
NH |
EPNGNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-679
| 2 |
Epping |
NH |
EPNGNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-679
| 3 |
Epping |
NH |
EPNGNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-679
| 4 |
Epping |
NH |
EPNGNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-679
| 5 |
Epping |
NH |
EPNGNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-679
| 6 |
Epping |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-09-10 |
|
| 603-679
| 7 |
Epping |
NH |
MNCHNHCO22Z |
073H TELNYX LLC |
122 |
|
2023-02-03 |
|
| 603-679
| 8 |
Epping |
NH |
EPNGNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-679
| 9 |
Epping |
NH |
EPNGNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-680
| A |
Hillsboro |
NH |
MNCHNHCOPS1 |
631H ENHANCED COMMUNICATIONS OF NORTHERN NEW ENGLAND-NH |
122 |
|
|
|
| 603-680
| 0 |
Hillsboro |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-680
| 1 |
Hillsboro |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-680
| 3 |
Hillsboro |
NH |
MNCHNHCOPS1 |
631H ENHANCED COMMUNICATIONS OF NORTHERN NEW ENGLAND-NH |
122 |
|
2016-08-02 |
|
| 603-680
| 4 |
Hillsboro |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2010-02-10 |
|
| 603-680
| 5 |
Hillsboro |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2019-12-13 |
|
| 603-680
| 6 |
Hillsboro |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2019-12-13 |
|
| 603-680
| 7 |
Hillsboro |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2024-07-20 |
|
| 603-680
| 8 |
Hillsboro |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2020-10-26 |
|
| 603-680
| 9 |
Hillsboro |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
2016-06-02 |
|
| 603-681
| A |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-681
| 0 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-681
| 1 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-681
| 2 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-681
| 3 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2006-03-14 |
|
| 603-681
| 4 |
Salem |
NH |
MNCHNHCOX1Y |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2002-10-26 |
|
| 603-681
| 5 |
Salem |
NH |
DOVRNHTHGMD |
624H ONVOY SPECTRUM, LLC |
122 |
|
2022-01-07 |
|
| 603-681
| 6 |
Salem |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2021-05-07 |
|
| 603-681
| 7 |
Salem |
NH |
DOVRNHTHGMD |
624H ONVOY SPECTRUM, LLC |
122 |
|
2022-01-07 |
|
| 603-681
| 8 |
Salem |
NH |
DOVRNHTHGMD |
624H ONVOY SPECTRUM, LLC |
122 |
|
2022-01-07 |
|
| 603-681
| 9 |
Salem |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-682
| A |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-682
| 0 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-682
| 1 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-682
| 2 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-682
| 3 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-682
| 4 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-682
| 5 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-682
| 6 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-682
| 7 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-682
| 8 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-682
| 9 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-683
| A |
Merrimack |
NH |
MRMCNHYADS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-684
| A |
Lancaster |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-684
| 0 |
Lancaster |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2005-01-20 |
|
| 603-684
| 1 |
Lancaster |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2023-04-27 |
|
| 603-684
| 2 |
Lancaster |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-09-15 |
|
| 603-684
| 3 |
Lancaster |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-07-27 |
|
| 603-684
| 4 |
Lancaster |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-684
| 6 |
Lancaster |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2003-12-16 |
|
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Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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