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 |
| 603-565
| 1 |
Penacook |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2006-05-20 |
|
| 603-565
| 2 |
Penacook |
NH |
MNCHNHCOXCZ |
996E BANDWIDTH.COM CLEC, LLC - NH |
122 |
|
2002-09-20 |
|
| 603-565
| 3 |
Penacook |
NH |
ROCHNHWE4MD |
314C IDT AMERICA, CORP. - NH |
122 |
|
2023-04-30 |
|
| 603-565
| 4 |
Penacook |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-565
| 5 |
Penacook |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2012-05-18 |
|
| 603-565
| 9 |
Penacook |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-07-04 |
|
| 603-566
| A |
Nashua |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-567
| A |
Peterborough |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-567
| 0 |
Peterborough |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-07-04 |
|
| 603-567
| 4 |
Peterborough |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-567
| 7 |
Peterborough |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2015-04-28 |
|
| 603-567
| 8 |
Peterborough |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2025-03-14 |
|
| 603-568
| A |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-568
| 0 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2002-09-27 |
|
| 603-568
| 1 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2002-09-27 |
|
| 603-568
| 2 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2002-09-27 |
|
| 603-568
| 3 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2002-09-27 |
|
| 603-568
| 4 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2003-08-03 |
|
| 603-568
| 5 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2003-09-03 |
|
| 603-568
| 6 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2003-11-03 |
|
| 603-568
| 7 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-01-19 |
|
| 603-568
| 8 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2003-05-10 |
|
| 603-568
| 9 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-04-01 |
|
| 603-569
| A |
Wolfeboro |
NH |
WLBONHGSRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-570
| A |
Portsmouth |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
|
|
| 603-570
| 0 |
Portsmouth |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2014-03-10 |
|
| 603-570
| 1 |
Portsmouth |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2015-08-11 |
|
| 603-570
| 2 |
Portsmouth |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2006-10-17 |
|
| 603-570
| 3 |
Portsmouth |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2001-07-13 |
|
| 603-570
| 4 |
Portsmouth |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2001-07-13 |
|
| 603-570
| 5 |
Portsmouth |
NH |
MNCHNHCO44Z |
829J PAETEC ITEL, LLC |
122 |
|
2004-11-18 |
|
| 603-570
| 6 |
Portsmouth |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
2012-03-30 |
|
| 603-570
| 7 |
Portsmouth |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2007-06-13 |
|
| 603-570
| 8 |
Portsmouth |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2018-01-10 |
|
| 603-570
| 9 |
Portsmouth |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-571
| A |
Derry |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2024-01-05 |
|
| 603-571
| 0 |
Derry |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-571
| 1 |
Derry |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-571
| 2 |
Derry |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2024-02-02 |
|
| 603-571
| 3 |
Derry |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2025-09-06 |
|
| 603-571
| 4 |
Derry |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2024-01-15 |
|
| 603-571
| 5 |
Derry |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-571
| 6 |
Derry |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2025-12-26 |
|
| 603-571
| 7 |
Derry |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-571
| 8 |
Derry |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-571
| 9 |
Derry |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2025-04-23 |
|
| 603-573
| A |
Concord |
NH |
MNCHNHACDS0 |
7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
122 |
|
|
|
| 603-573
| 0 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2014-09-01 |
|
| 603-573
| 1 |
Concord |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2013-10-01 |
|
| 603-573
| 2 |
Concord |
NH |
CNCRNHSODS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
2012-12-12 |
|
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Last updated: Tue, 01 Sep 2026 00:40:05 UTC
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