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 |
| 603-361
| 4 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2003-10-03 |
|
| 603-361
| 5 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-02-17 |
|
| 603-361
| 6 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2003-11-19 |
|
| 603-361
| 7 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-01-19 |
|
| 603-361
| 8 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-06-03 |
|
| 603-361
| 9 |
Manchester |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-08-02 |
|
| 603-362
| A |
Hampstead |
NH |
ATSNNHMARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-362
| 0 |
Hampstead |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-03-26 |
|
| 603-362
| 1 |
Hampstead |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2005-06-15 |
|
| 603-362
| 2 |
Hampstead |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2009-02-02 |
|
| 603-362
| 3 |
Hampstead |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2016-06-01 |
|
| 603-362
| 4 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-362
| 5 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-362
| 6 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-362
| 7 |
Hampstead |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2013-10-01 |
|
| 603-362
| 8 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-362
| 9 |
Hampstead |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-363
| A |
Spofford |
NH |
SPFRNHMSRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-363
| 1 |
Spofford |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2002-01-08 |
|
| 603-363
| 2 |
Spofford |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-363
| 3 |
Spofford |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2024-01-07 |
|
| 603-363
| 4 |
Spofford |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-363
| 5 |
Spofford |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2002-10-14 |
|
| 603-363
| 8 |
Spofford |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-363
| 9 |
Spofford |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-364
| A |
Gilmanton Iron Works |
NH |
GLTNNHXARP0 |
0049 UNION TEL. CO. |
122 |
|
|
|
| 603-364
| 0 |
Gilmanton Iron Works |
NH |
|
0049 UNION TEL. CO. |
122 |
|
|
|
| 603-364
| 7 |
Gilmanton Iron Works |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2025-07-11 |
|
| 603-365
| A |
Merrimack |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-365
| 0 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-365
| 1 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-365
| 2 |
Merrimack |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2021-09-10 |
|
| 603-365
| 3 |
Merrimack |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2021-09-10 |
|
| 603-365
| 4 |
Merrimack |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2015-12-04 |
|
| 603-365
| 5 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-365
| 6 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-365
| 7 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-365
| 8 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-365
| 9 |
Merrimack |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-366
| A |
Laconia |
NH |
WERSNHSTRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-366
| 0 |
Laconia |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2014-01-21 |
|
| 603-366
| 1 |
Laconia |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2006-04-03 |
|
| 603-366
| 2 |
Laconia |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-366
| 3 |
Laconia |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2013-03-05 |
|
| 603-366
| 4 |
Laconia |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-366
| 5 |
Laconia |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-366
| 6 |
Laconia |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2009-01-05 |
|
| 603-366
| 7 |
Laconia |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-366
| 8 |
Laconia |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2012-10-23 |
|
| 603-366
| 9 |
Laconia |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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