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 |
| 603-719
| 7 |
Keene |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2022-12-02 |
|
| 603-719
| 8 |
Keene |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2022-08-29 |
|
| 603-719
| 9 |
Keene |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-720
| A |
Troy |
NH |
MNCHNHCO42Z |
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
|
|
| 603-720
| 1 |
Troy |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2023-05-21 |
|
| 603-721
| A |
Milford |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
|
|
| 603-721
| 0 |
Milford |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2006-05-20 |
|
| 603-721
| 1 |
Milford |
NH |
|
5562 METROPCS, INC. |
122 |
|
|
|
| 603-721
| 2 |
Milford |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-721
| 3 |
Milford |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2026-01-29 |
|
| 603-721
| 4 |
Milford |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2007-03-07 |
|
| 603-721
| 5 |
Milford |
NH |
|
792K CHARTER IP ENABLED SERVICES, LLC |
122 |
|
2011-09-03 |
|
| 603-721
| 6 |
Milford |
NH |
|
5562 METROPCS, INC. |
122 |
|
|
|
| 603-721
| 7 |
Milford |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2011-09-12 |
|
| 603-721
| 8 |
Milford |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2024-11-25 |
|
| 603-721
| 9 |
Milford |
NH |
|
5562 METROPCS, INC. |
122 |
|
|
|
| 603-722
| A |
Manchester |
NH |
MNCHNHCOXCZ |
996E BANDWIDTH.COM CLEC, LLC - NH |
122 |
|
|
|
| 603-722
| 0 |
Manchester |
NH |
|
996E BANDWIDTH.COM CLEC, LLC - NH |
122 |
|
2008-07-19 |
|
| 603-722
| 1 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2016-03-01 |
|
| 603-722
| 2 |
Manchester |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2013-09-06 |
|
| 603-722
| 3 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2017-12-05 |
|
| 603-722
| 4 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2015-05-01 |
|
| 603-722
| 5 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2015-07-01 |
|
| 603-722
| 6 |
Manchester |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2019-12-09 |
|
| 603-722
| 7 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2015-08-01 |
|
| 603-722
| 8 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2013-01-31 |
|
| 603-722
| 9 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2013-12-28 |
|
| 603-723
| A |
Berlin |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-724
| A |
Concord |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-724
| 0 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-11-04 |
|
| 603-724
| 1 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2005-01-02 |
|
| 603-724
| 2 |
Concord |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-724
| 3 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2005-01-02 |
|
| 603-724
| 4 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-08-15 |
|
| 603-724
| 5 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2005-06-02 |
|
| 603-724
| 6 |
Concord |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-724
| 7 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-09-02 |
|
| 603-724
| 8 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-03-03 |
|
| 603-724
| 9 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-02-03 |
|
| 603-725
| A |
Tamworth |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-725
| 0 |
Tamworth |
NH |
|
939H COMMIO, LLC |
122 |
|
2022-11-05 |
|
| 603-725
| 4 |
Tamworth |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-725
| 6 |
Tamworth |
NH |
|
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2023-03-03 |
|
| 603-726
| A |
Campton |
NH |
CMTNNHOWRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-726
| 0 |
Campton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-07-03 |
|
| 603-726
| 1 |
Campton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-11-02 |
|
| 603-726
| 2 |
Campton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-726
| 3 |
Campton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-726
| 4 |
Campton |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-726
| 5 |
Campton |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2023-01-04 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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