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 |
| 603-699
| 5 |
Nashua |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2024-01-19 |
|
| 603-699
| 6 |
Nashua |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2023-10-14 |
|
| 603-699
| 7 |
Nashua |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2023-08-19 |
|
| 603-699
| 8 |
Nashua |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2023-08-19 |
|
| 603-699
| 9 |
Nashua |
NH |
MNCHNHBODS0 |
927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH |
122 |
|
2023-08-08 |
|
| 603-701
| A |
New Durham |
NH |
ROCHNHWE4MD |
314C IDT AMERICA, CORP. - NH |
122 |
|
|
|
| 603-701
| 1 |
New Durham |
NH |
|
318J COMCAST IP PHONE, LLC |
122 |
|
2025-10-09 |
|
| 603-701
| 2 |
New Durham |
NH |
ROCHNHWE4MD |
314C IDT AMERICA, CORP. - NH |
122 |
|
2009-12-11 |
|
| 603-702
| A |
Kingston |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-702
| 0 |
Kingston |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-702
| 1 |
Kingston |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-702
| 2 |
Kingston |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-702
| 3 |
Kingston |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
|
|
| 603-702
| 4 |
Kingston |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2023-12-14 |
|
| 603-702
| 5 |
Kingston |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2012-01-21 |
|
| 603-702
| 6 |
Kingston |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2020-09-21 |
|
| 603-702
| 7 |
Kingston |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2026-04-19 |
|
| 603-702
| 8 |
Kingston |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2016-11-13 |
|
| 603-702
| 9 |
Kingston |
NH |
|
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2025-12-13 |
|
| 603-703
| A |
Manchester |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
|
|
| 603-703
| 0 |
Manchester |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2004-10-09 |
|
| 603-703
| 1 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-07-03 |
|
| 603-703
| 2 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-10-02 |
|
| 603-703
| 3 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-08-07 |
|
| 603-703
| 4 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-11-02 |
|
| 603-703
| 5 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-01-02 |
|
| 603-703
| 6 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-02-02 |
|
| 603-703
| 7 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-05-03 |
|
| 603-703
| 8 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-07-02 |
|
| 603-703
| 9 |
Manchester |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2007-11-15 |
|
| 603-704
| A |
Derry |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
|
|
| 603-704
| 0 |
Derry |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2022-07-02 |
|
| 603-704
| 1 |
Derry |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
2021-11-01 |
|
| 603-704
| 2 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-01-15 |
|
| 603-704
| 3 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2021-08-02 |
|
| 603-704
| 4 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2021-08-02 |
|
| 603-704
| 5 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2021-11-13 |
|
| 603-704
| 6 |
Derry |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2019-04-25 |
|
| 603-704
| 7 |
Derry |
NH |
DOVRNHTHXEX |
8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
122 |
|
2019-04-25 |
|
| 603-704
| 8 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-05-20 |
|
| 603-704
| 9 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-05-20 |
|
| 603-705
| A |
Salisbury |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-705
| 0 |
Salisbury |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2010-01-25 |
|
| 603-705
| 8 |
Salisbury |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2021-03-11 |
|
| 603-705
| 9 |
Salisbury |
NH |
DRRYNHBC1MD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
122 |
|
2021-03-11 |
|
| 603-706
| A |
Raymond |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-706
| 0 |
Raymond |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2005-08-01 |
|
| 603-706
| 1 |
Raymond |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2004-06-18 |
|
| 603-706
| 2 |
Raymond |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-12-02 |
|
| 603-706
| 3 |
Raymond |
NH |
MNCHNHACAMD |
6386 BELL ATLANTIC MOBILE, INC |
122 |
|
2006-04-01 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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