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 |
| 603-816
| 1 |
Nashua |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-816
| 2 |
Nashua |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-816
| 3 |
Nashua |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-816
| 5 |
Nashua |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-816
| 6 |
Nashua |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-816
| 7 |
Nashua |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-816
| 8 |
Nashua |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-816
| 9 |
Nashua |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-817
| A |
Dover |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-817
| 0 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-817
| 1 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-817
| 2 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2003-05-26 |
|
| 603-817
| 3 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2003-05-26 |
|
| 603-817
| 4 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2003-08-25 |
|
| 603-817
| 5 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2003-08-25 |
|
| 603-817
| 6 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-817
| 7 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-817
| 8 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-817
| 9 |
Dover |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-818
| A |
Derry |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-02-09 |
|
| 603-818
| 0 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2008-11-15 |
|
| 603-818
| 1 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-818
| 2 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-818
| 3 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-818
| 4 |
Derry |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2012-06-15 |
|
| 603-818
| 5 |
Derry |
NH |
|
996E BANDWIDTH.COM CLEC, LLC - NH |
122 |
|
2006-06-22 |
|
| 603-818
| 6 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-818
| 7 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2006-07-26 |
|
| 603-818
| 8 |
Derry |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2006-06-04 |
|
| 603-818
| 9 |
Derry |
NH |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-819
| A |
Plaistow |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-819
| 0 |
Plaistow |
NH |
|
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2005-01-24 |
|
| 603-819
| 1 |
Plaistow |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2005-04-01 |
|
| 603-819
| 3 |
Plaistow |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-09-01 |
|
| 603-819
| 4 |
Plaistow |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
|
|
| 603-819
| 5 |
Plaistow |
NH |
|
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2005-04-28 |
|
| 603-819
| 6 |
Plaistow |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-10-03 |
|
| 603-819
| 8 |
Plaistow |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2004-04-01 |
|
| 603-819
| 9 |
Plaistow |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2003-06-03 |
|
| 603-820
| A |
Merrimack |
NH |
MNCHNHCOCM1 |
5562 METROPCS, INC. |
122 |
|
|
|
| 603-820
| 0 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2008-05-12 |
|
| 603-820
| 1 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2010-02-28 |
|
| 603-820
| 2 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2010-02-28 |
|
| 603-820
| 3 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2010-02-28 |
|
| 603-820
| 4 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2010-10-23 |
|
| 603-820
| 5 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2010-10-23 |
|
| 603-820
| 6 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2010-10-23 |
|
| 603-820
| 7 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2012-01-21 |
|
| 603-820
| 8 |
Merrimack |
NH |
|
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2008-09-10 |
|
| 603-820
| 9 |
Merrimack |
NH |
|
5562 METROPCS, INC. |
122 |
|
2014-11-06 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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