Local Calling Guide
Area code/prefix search
NPA: 603
[Rate centres in NPA 603]
[Dial plan for NPA 603]
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 603-560
| A |
Salem |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-560
| 0 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-560
| 1 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-560
| 2 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-560
| 3 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-560
| 4 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-560
| 5 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-560
| 6 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-560
| 7 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-560
| 8 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-560
| 9 |
Salem |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2011-06-15 |
|
| 603-561
| A |
Nashua |
NH |
NASHNHWPDS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-562
| A |
Peterborough |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-562
| 0 |
Peterborough |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
2009-02-05 |
|
| 603-562
| 1 |
Peterborough |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
2016-08-11 |
|
| 603-562
| 2 |
Peterborough |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
2020-12-25 |
|
| 603-562
| 4 |
Peterborough |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
2014-02-16 |
|
| 603-562
| 5 |
Peterborough |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-562
| 6 |
Peterborough |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-562
| 7 |
Peterborough |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-562
| 8 |
Peterborough |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-562
| 9 |
Peterborough |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-563
| A |
Dublin |
NH |
DBLNNHMORS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-563
| 0 |
Dublin |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-04 |
|
| 603-563
| 1 |
Dublin |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2005-07-23 |
|
| 603-563
| 3 |
Dublin |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2025-04-20 |
|
| 603-563
| 5 |
Dublin |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2022-10-06 |
|
| 603-563
| 7 |
Dublin |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-563
| 8 |
Dublin |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-563
| 9 |
Dublin |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-564
| A |
Manchester |
NH |
MNCHNHCODS2 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-565
| A |
Penacook |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-565
| 0 |
Penacook |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-09-15 |
|
| 603-565
| 1 |
Penacook |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2006-05-20 |
|
| 603-565
| 2 |
Penacook |
NH |
|
996E BANDWIDTH.COM CLEC, LLC - NH |
122 |
|
2002-09-20 |
|
| 603-565
| 3 |
Penacook |
NH |
|
314C IDT AMERICA, CORP. - NH |
122 |
|
2023-04-30 |
|
| 603-565
| 4 |
Penacook |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-565
| 5 |
Penacook |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2012-05-18 |
|
| 603-565
| 9 |
Penacook |
NH |
|
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 |
|
073H TELNYX LLC |
122 |
|
2024-07-04 |
|
| 603-567
| 4 |
Peterborough |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-567
| 7 |
Peterborough |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2015-04-28 |
|
| 603-567
| 8 |
Peterborough |
NH |
|
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 |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2002-09-27 |
|
| 603-568
| 1 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2002-09-27 |
|
| 603-568
| 2 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2002-09-27 |
|
| 603-568
| 3 |
Concord |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2002-09-27 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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