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 |
| 603-836
| 5 |
Manchester |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2009-04-18 |
|
| 603-836
| 6 |
Manchester |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2013-05-07 |
|
| 603-836
| 7 |
Manchester |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2015-02-28 |
|
| 603-836
| 8 |
Manchester |
NH |
|
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
2018-03-24 |
|
| 603-836
| 9 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2019-12-09 |
|
| 603-837
| A |
Whitefield |
NH |
WHFDNHPLRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-837
| 0 |
Whitefield |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2002-05-22 |
|
| 603-837
| 1 |
Whitefield |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2023-07-10 |
|
| 603-837
| 2 |
Whitefield |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-837
| 3 |
Whitefield |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-837
| 6 |
Whitefield |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-05 |
|
| 603-837
| 7 |
Whitefield |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-837
| 8 |
Whitefield |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-837
| 9 |
Whitefield |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-838
| A |
Lisbon |
NH |
LSBNNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-838
| 0 |
Lisbon |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2019-03-22 |
|
| 603-838
| 2 |
Lisbon |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-838
| 3 |
Lisbon |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-04 |
|
| 603-838
| 4 |
Lisbon |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2021-05-27 |
|
| 603-838
| 5 |
Lisbon |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-838
| 6 |
Lisbon |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-838
| 7 |
Lisbon |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2004-07-14 |
|
| 603-838
| 8 |
Lisbon |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-838
| 9 |
Lisbon |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2014-06-20 |
|
| 603-839
| A |
Farmington |
NH |
DOVRNHTHXMX |
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
|
|
| 603-839
| 1 |
Farmington |
NH |
|
314C IDT AMERICA, CORP. - NH |
122 |
|
2008-04-18 |
|
| 603-839
| 5 |
Farmington |
NH |
|
073H TELNYX LLC |
122 |
|
2024-07-27 |
|
| 603-839
| 6 |
Farmington |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2020-03-08 |
|
| 603-839
| 8 |
Farmington |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2025-06-23 |
|
| 603-839
| 9 |
Farmington |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-840
| A |
Epsom |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-840
| 0 |
Epsom |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2010-01-25 |
|
| 603-840
| 1 |
Epsom |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-04-29 |
|
| 603-840
| 2 |
Epsom |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-04-29 |
|
| 603-840
| 3 |
Epsom |
NH |
|
073H TELNYX LLC |
122 |
|
2024-07-22 |
|
| 603-840
| 4 |
Epsom |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-08-16 |
|
| 603-840
| 5 |
Epsom |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-08-16 |
|
| 603-840
| 6 |
Epsom |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-08-16 |
|
| 603-840
| 8 |
Epsom |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-06-15 |
|
| 603-840
| 9 |
Epsom |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-06-15 |
|
| 603-841
| A |
Somersworth |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-841
| 0 |
Somersworth |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2009-01-05 |
|
| 603-841
| 1 |
Somersworth |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-05-01 |
|
| 603-841
| 2 |
Somersworth |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2004-07-30 |
|
| 603-841
| 3 |
Somersworth |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-05 |
|
| 603-841
| 4 |
Somersworth |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2015-04-10 |
|
| 603-841
| 5 |
Somersworth |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-841
| 6 |
Somersworth |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2011-08-29 |
|
| 603-841
| 7 |
Somersworth |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2006-11-30 |
|
| 603-841
| 8 |
Somersworth |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2015-01-20 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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