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 |
| 603-857
| 0 |
Suncook |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2022-06-05 |
|
| 603-857
| 1 |
Suncook |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2023-10-16 |
|
| 603-857
| 2 |
Suncook |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2026-01-15 |
|
| 603-857
| 7 |
Suncook |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2024-11-17 |
|
| 603-857
| 8 |
Suncook |
NH |
|
616J LEAP TELECOM, LLC |
122 |
|
2025-05-04 |
|
| 603-857
| 9 |
Suncook |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2024-09-28 |
|
| 603-858
| A |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-858
| 0 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-858
| 1 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-858
| 2 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-858
| 3 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-858
| 4 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-858
| 5 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-858
| 6 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-858
| 7 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2016-02-06 |
|
| 603-858
| 8 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2016-12-10 |
|
| 603-858
| 9 |
Manchester |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-859
| A |
New Durham |
NH |
NWDRNHXARP0 |
0049 UNION TEL. CO. |
122 |
|
|
|
| 603-859
| 0 |
New Durham |
NH |
NWDRNHXARP0 |
0049 UNION TEL. CO. |
122 |
|
|
|
| 603-859
| 1 |
New Durham |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2026-03-14 |
|
| 603-859
| 2 |
New Durham |
NH |
NWDRNHXARP0 |
0049 UNION TEL. CO. |
122 |
|
|
|
| 603-859
| 4 |
New Durham |
NH |
NWDRNHXARP0 |
0049 UNION TEL. CO. |
122 |
|
|
|
| 603-859
| 5 |
New Durham |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2025-07-11 |
|
| 603-859
| 8 |
New Durham |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2025-01-18 |
|
| 603-859
| 9 |
New Durham |
NH |
NWDRNHXARP0 |
0049 UNION TEL. CO. |
122 |
|
|
|
| 603-860
| A |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-861
| A |
Tamworth |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-861
| 2 |
Tamworth |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2025-10-06 |
|
| 603-861
| 3 |
Tamworth |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2026-06-06 |
|
| 603-861
| 6 |
Tamworth |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2025-02-13 |
|
| 603-861
| 9 |
Tamworth |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-862
| A |
Durham |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-863
| A |
Newport |
NH |
NWPTNHMADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-864
| A |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-864
| 0 |
Nashua |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2014-11-24 |
|
| 603-864
| 1 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-864
| 2 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-864
| 3 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-864
| 4 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-864
| 5 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-864
| 6 |
Nashua |
NH |
MNCHNHCOX1Y |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2002-11-15 |
|
| 603-864
| 7 |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-864
| 8 |
Nashua |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2006-12-20 |
|
| 603-864
| 9 |
Nashua |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2006-07-06 |
|
| 603-865
| A |
Newport |
NH |
NWPTNHMADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-865
| 0 |
Newport |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2023-02-24 |
|
| 603-865
| 1 |
Newport |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2002-10-20 |
|
| 603-865
| 2 |
Newport |
NH |
NWPTNHMADS0 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-865
| 3 |
Newport |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2005-01-02 |
|
| 603-865
| 4 |
Newport |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2002-09-19 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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