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 |
| 603-732
| 2 |
Milford |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-01-02 |
|
| 603-732
| 3 |
Milford |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-06-01 |
|
| 603-732
| 4 |
Milford |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2000-09-21 |
|
| 603-732
| 5 |
Milford |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2025-04-11 |
|
| 603-732
| 6 |
Milford |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-03-03 |
|
| 603-732
| 7 |
Milford |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-09-01 |
|
| 603-732
| 8 |
Milford |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2009-12-16 |
|
| 603-732
| 9 |
Milford |
NH |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-733
| A |
North Conway |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-733
| 1 |
North Conway |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2004-08-21 |
|
| 603-733
| 2 |
North Conway |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2002-09-19 |
|
| 603-733
| 3 |
North Conway |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2022-08-04 |
|
| 603-733
| 4 |
North Conway |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-733
| 5 |
North Conway |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2006-10-30 |
|
| 603-733
| 6 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-01-02 |
|
| 603-733
| 7 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-08-02 |
|
| 603-733
| 8 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-08-14 |
|
| 603-733
| 9 |
North Conway |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2009-01-05 |
|
| 603-734
| A |
Epping |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-734
| 2 |
Epping |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2000-07-01 |
|
| 603-734
| 4 |
Epping |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2006-11-30 |
|
| 603-734
| 5 |
Epping |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-04 |
|
| 603-734
| 7 |
Epping |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2025-07-24 |
|
| 603-734
| 9 |
Epping |
NH |
|
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-735
| A |
Andover |
NH |
ANDVNHXARP0 |
0045 KEARSARGE TEL. CO. |
122 |
|
|
|
| 603-735
| 0 |
Andover |
NH |
|
0045 KEARSARGE TEL. CO. |
122 |
|
|
|
| 603-735
| 2 |
Andover |
NH |
|
0045 KEARSARGE TEL. CO. |
122 |
|
|
|
| 603-735
| 4 |
Andover |
NH |
|
0045 KEARSARGE TEL. CO. |
122 |
|
|
|
| 603-735
| 5 |
Andover |
NH |
|
0045 KEARSARGE TEL. CO. |
122 |
|
|
|
| 603-735
| 6 |
Andover |
NH |
|
0045 KEARSARGE TEL. CO. |
122 |
|
|
|
| 603-736
| A |
Epsom |
NH |
EPSMNHBHRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-736
| 0 |
Epsom |
NH |
|
314C IDT AMERICA, CORP. - NH |
122 |
|
2008-04-18 |
|
| 603-736
| 1 |
Epsom |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2002-09-12 |
|
| 603-736
| 2 |
Epsom |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2021-05-27 |
|
| 603-736
| 3 |
Epsom |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-736
| 4 |
Epsom |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-736
| 5 |
Epsom |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2025-04-10 |
|
| 603-736
| 6 |
Epsom |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2009-02-19 |
|
| 603-736
| 7 |
Epsom |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-04 |
|
| 603-736
| 8 |
Epsom |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-736
| 9 |
Epsom |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-737
| A |
Laconia |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-737
| 0 |
Laconia |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-737
| 1 |
Laconia |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-737
| 2 |
Laconia |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-737
| 3 |
Laconia |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2025-09-16 |
|
| 603-737
| 4 |
Laconia |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-737
| 5 |
Laconia |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-737
| 6 |
Laconia |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-737
| 8 |
Laconia |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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