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 |
| 603-799
| 5 |
Manchester |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2024-11-10 |
|
| 603-799
| 6 |
Manchester |
NH |
|
5562 METROPCS, INC. |
122 |
|
|
|
| 603-799
| 7 |
Manchester |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2024-06-10 |
|
| 603-799
| 8 |
Manchester |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2024-06-10 |
|
| 603-799
| 9 |
Manchester |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-08-08 |
|
| 603-800
| A |
Meredith |
NH |
MNCHNHCO26Z |
965H FRACTEL, LLC |
122 |
|
|
|
| 603-800
| 0 |
Meredith |
NH |
MNCHNHCO26Z |
965H FRACTEL, LLC |
122 |
|
2020-01-30 |
|
| 603-800
| 1 |
Meredith |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2020-01-31 |
|
| 603-800
| 2 |
Meredith |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2021-06-06 |
|
| 603-800
| 3 |
Meredith |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2021-11-04 |
|
| 603-800
| 4 |
Meredith |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2022-02-21 |
|
| 603-800
| 5 |
Meredith |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2020-09-16 |
|
| 603-800
| 6 |
Meredith |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2022-05-06 |
|
| 603-800
| 7 |
Meredith |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2022-06-16 |
|
| 603-800
| 8 |
Meredith |
NH |
MNCHNHCO26Z |
965H FRACTEL, LLC |
122 |
|
2020-01-30 |
|
| 603-800
| 9 |
Meredith |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2022-01-07 |
|
| 603-801
| A |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-801
| 0 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-801
| 1 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-801
| 2 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-801
| 3 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-801
| 4 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-801
| 5 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2003-08-03 |
|
| 603-801
| 6 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2003-11-03 |
|
| 603-801
| 7 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-801
| 8 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-801
| 9 |
Milford |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-802
| A |
Concord |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
|
|
| 603-802
| 0 |
Concord |
NH |
|
939H COMMIO, LLC |
122 |
|
2022-11-14 |
|
| 603-802
| 1 |
Concord |
NH |
MNCHNHBODS0 |
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
2022-11-14 |
|
| 603-802
| 2 |
Concord |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-11-13 |
|
| 603-802
| 3 |
Concord |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-11-13 |
|
| 603-802
| 4 |
Concord |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-12-01 |
|
| 603-802
| 5 |
Concord |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-12-01 |
|
| 603-802
| 6 |
Concord |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-12-01 |
|
| 603-802
| 7 |
Concord |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2023-07-06 |
|
| 603-802
| 8 |
Concord |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2022-11-20 |
|
| 603-802
| 9 |
Concord |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2023-02-10 |
|
| 603-803
| A |
Keene |
NH |
MNCHNHCO16Z |
508J CENTURYLINK COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-803
| 0 |
Keene |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2021-12-31 |
|
| 603-803
| 1 |
Keene |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2017-08-24 |
|
| 603-803
| 2 |
Keene |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2018-11-15 |
|
| 603-803
| 3 |
Keene |
NH |
MNCHNHCOXCZ |
996E BANDWIDTH.COM CLEC, LLC - NH |
122 |
|
2019-09-02 |
|
| 603-803
| 4 |
Keene |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-09-29 |
|
| 603-803
| 5 |
Keene |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2021-08-02 |
|
| 603-803
| 6 |
Keene |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-09-29 |
|
| 603-803
| 7 |
Keene |
NH |
MNCHNHCO16Z |
508J CENTURYLINK COMMUNICATIONS, LLC |
122 |
|
2016-12-17 |
|
| 603-803
| 8 |
Keene |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2020-05-02 |
|
| 603-803
| 9 |
Keene |
NH |
MNCHNHCOXCZ |
996E BANDWIDTH.COM CLEC, LLC - NH |
122 |
|
2022-08-14 |
|
| 603-804
| A |
Dover |
NH |
MNCHNHBO2MD |
490J BOOST SUBSCRIBERCO L.L.C. |
122 |
|
|
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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