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 |
| 603-978
| 0 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-978
| 1 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-978
| 2 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-978
| 3 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-978
| 4 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-978
| 5 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-978
| 6 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-978
| 7 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2005-01-07 |
|
| 603-978
| 8 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2005-03-04 |
|
| 603-978
| 9 |
Dover |
NH |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
|
|
| 603-986
| A |
North Conway |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-986
| 0 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-09-29 |
|
| 603-986
| 1 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2005-01-02 |
|
| 603-986
| 2 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2005-05-02 |
|
| 603-986
| 3 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2005-11-01 |
|
| 603-986
| 4 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-06-03 |
|
| 603-986
| 5 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-986
| 6 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-986
| 7 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-986
| 8 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-986
| 9 |
North Conway |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-988
| A |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-988
| 0 |
Portsmouth |
NH |
|
637E ONVOY, LLC - NH |
122 |
|
2021-11-13 |
|
| 603-988
| 1 |
Portsmouth |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2007-05-02 |
|
| 603-988
| 2 |
Portsmouth |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2006-10-19 |
|
| 603-988
| 3 |
Portsmouth |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2006-10-19 |
|
| 603-988
| 4 |
Portsmouth |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2006-01-12 |
|
| 603-988
| 5 |
Portsmouth |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2005-10-03 |
|
| 603-988
| 6 |
Portsmouth |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2005-01-17 |
|
| 603-988
| 7 |
Portsmouth |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2004-11-06 |
|
| 603-988
| 8 |
Portsmouth |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2004-08-16 |
|
| 603-988
| 9 |
Portsmouth |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2004-08-16 |
|
| 603-989
| A |
Pike |
NH |
PIKENHPIRS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-989
| 2 |
Pike |
NH |
|
792K CHARTER IP ENABLED SERVICES, LLC |
122 |
|
2011-09-03 |
|
| 603-989
| 3 |
Pike |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-989
| 5 |
Pike |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-989
| 7 |
Pike |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2004-08-23 |
|
| 603-989
| 8 |
Pike |
NH |
|
793K TWC IP ENABLED SERVICES, LLC |
122 |
|
2012-10-02 |
|
| 603-989
| 9 |
Pike |
NH |
|
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-991
| A |
Littleton |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-991
| 0 |
Littleton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-991
| 1 |
Littleton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2014-06-01 |
|
| 603-991
| 2 |
Littleton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-991
| 3 |
Littleton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-991
| 4 |
Littleton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-991
| 5 |
Littleton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-991
| 6 |
Littleton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-02-07 |
|
| 603-991
| 7 |
Littleton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-07-03 |
|
| 603-991
| 8 |
Littleton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-09-17 |
|
| 603-991
| 9 |
Littleton |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-12-02 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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