Local Calling Guide
Area code/prefix search
NPA: 603
[Rate centres in NPA 603]
[Dial plan for NPA 603]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 603-277
| 2 |
Hanover |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2013-10-03 |
|
| 603-277
| 3 |
Hanover |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
2008-03-15 |
|
| 603-277
| 6 |
Hanover |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2022-03-03 |
|
| 603-277
| 7 |
Hanover |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-04-23 |
|
| 603-277
| 8 |
Hanover |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2017-09-19 |
|
| 603-277
| 9 |
Hanover |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2007-01-30 |
|
| 603-278
| A |
Bretton Woods |
NH |
BTWDNHXADS0 |
0038 BRETTON WOODS TEL. CO. |
122 |
|
|
|
| 603-279
| A |
Meredith |
NH |
MRDTNHWARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-280
| A |
Barrington |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-280
| 0 |
Barrington |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-06-26 |
|
| 603-280
| 1 |
Barrington |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-06-30 |
|
| 603-280
| 3 |
Barrington |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2025-10-03 |
|
| 603-280
| 4 |
Barrington |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-280
| 6 |
Barrington |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2020-04-27 |
|
| 603-281
| A |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 0 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 1 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 2 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 3 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 4 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-281
| 6 |
Nashua |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2015-03-16 |
|
| 603-281
| 7 |
Nashua |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2015-03-16 |
|
| 603-281
| 8 |
Nashua |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2015-03-16 |
|
| 603-281
| 9 |
Nashua |
NH |
MNCHNHIE6MD |
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 |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-07-07 |
|
| 603-282
| 2 |
Canaan |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
2025-04-11 |
|
| 603-282
| 4 |
Canaan |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2002-09-10 |
|
| 603-282
| 6 |
Canaan |
NH |
MNCHNHAC7MD |
145J TERRA NOVA TELECOM INC. |
122 |
|
2026-06-06 |
|
| 603-282
| 7 |
Canaan |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2025-10-04 |
|
| 603-282
| 9 |
Canaan |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-283
| A |
Keene |
NH |
MNCHNHCO45Z |
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-283
| 0 |
Keene |
NH |
MNCHNHCO47Z |
829J PAETEC ITEL, LLC |
122 |
|
2000-08-09 |
|
| 603-283
| 1 |
Keene |
NH |
MNCHNHCO47Z |
829J PAETEC ITEL, LLC |
122 |
|
2001-05-01 |
|
| 603-283
| 2 |
Keene |
NH |
MNCHNHCO47Z |
829J PAETEC ITEL, LLC |
122 |
|
2006-03-07 |
|
| 603-283
| 3 |
Keene |
NH |
MNCHNHCO45Z |
829J PAETEC ITEL, LLC |
122 |
|
2006-09-07 |
|
| 603-283
| 5 |
Keene |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2007-03-30 |
|
| 603-283
| 6 |
Keene |
NH |
MNCHNHCO45Z |
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-283
| 7 |
Keene |
NH |
MNCHNHCO45Z |
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-283
| 8 |
Keene |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2009-01-05 |
|
| 603-283
| 9 |
Keene |
NH |
MNCHNHCO45Z |
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 |
MNCHNHCO23Z |
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 |
CNSWNHSLRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-284
| 7 |
Center Sandwich |
NH |
CNSWNHSLRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-284
| 9 |
Center Sandwich |
NH |
CNSWNHSLRS1 |
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 |
MNCHNHCO47Z |
829J PAETEC ITEL, LLC |
122 |
|
2001-03-26 |
|
| 603-285
| 1 |
Dover |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2007-03-29 |
|
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Last updated: Tue, 01 Sep 2026 00:40:05 UTC
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