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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 603-840
| 8 |
Epsom |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-06-15 |
|
| 603-840
| 9 |
Epsom |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2024-06-15 |
|
| 603-841
| A |
Somersworth |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-841
| 0 |
Somersworth |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2009-01-05 |
|
| 603-841
| 1 |
Somersworth |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2001-05-01 |
|
| 603-841
| 2 |
Somersworth |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2004-07-30 |
|
| 603-841
| 3 |
Somersworth |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-05 |
|
| 603-841
| 4 |
Somersworth |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2015-04-10 |
|
| 603-841
| 5 |
Somersworth |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-841
| 6 |
Somersworth |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2011-08-29 |
|
| 603-841
| 7 |
Somersworth |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2006-11-30 |
|
| 603-841
| 8 |
Somersworth |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2015-01-20 |
|
| 603-841
| 9 |
Somersworth |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2003-07-26 |
|
| 603-842
| A |
Dover |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-842
| 0 |
Dover |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2004-10-18 |
|
| 603-842
| 1 |
Dover |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2020-12-05 |
|
| 603-842
| 2 |
Dover |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2005-03-27 |
|
| 603-842
| 3 |
Dover |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2005-10-16 |
|
| 603-842
| 4 |
Dover |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2007-05-21 |
|
| 603-842
| 5 |
Dover |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2007-05-21 |
|
| 603-842
| 6 |
Dover |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-842
| 7 |
Dover |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2023-06-12 |
|
| 603-842
| 8 |
Dover |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-842
| 9 |
Dover |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2011-07-14 |
|
| 603-843
| A |
Newport |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-843
| 0 |
Newport |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-843
| 1 |
Newport |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-843
| 2 |
Newport |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-843
| 3 |
Newport |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-843
| 4 |
Newport |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-843
| 5 |
Newport |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2008-08-28 |
|
| 603-843
| 6 |
Newport |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2006-06-21 |
|
| 603-843
| 7 |
Newport |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2011-04-01 |
|
| 603-843
| 8 |
Newport |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2012-05-11 |
|
| 603-843
| 9 |
Newport |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
|
|
| 603-845
| A |
Derry |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-845
| 0 |
Derry |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-845
| 1 |
Derry |
NH |
PTMONH073MD |
8468 FREEDOM RING COMMUNICATIONS, LLC |
122 |
|
2004-12-14 |
|
| 603-845
| 2 |
Derry |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-845
| 3 |
Derry |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2005-06-23 |
|
| 603-845
| 4 |
Derry |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-845
| 5 |
Derry |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2005-01-14 |
|
| 603-845
| 6 |
Derry |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-01-02 |
|
| 603-845
| 7 |
Derry |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-04-24 |
|
| 603-845
| 8 |
Derry |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-02-02 |
|
| 603-845
| 9 |
Derry |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-06-01 |
|
| 603-846
| A |
Twin Mountain |
NH |
TWMTNHYARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-846
| 2 |
Twin Mountain |
NH |
|
145J TERRA NOVA TELECOM INC. |
122 |
|
2021-05-28 |
|
| 603-846
| 5 |
Twin Mountain |
NH |
TWMTNHYARS1 |
5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
122 |
|
|
|
| 603-846
| 6 |
Twin Mountain |
NH |
MNCHNHCOX8Z |
4017 LEVEL 3 COMMUNICATIONS, LLC - NH |
122 |
|
2004-09-05 |
|
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Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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