Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-522 6 Sanbornville NH SBVLNHCSRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-522 7 Sanbornville NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2005-09-15   
603-522 8 Sanbornville NH SBVLNHCSRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-522 9 Sanbornville NH SBVLNHCSRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-523 A Canaan NH CANNNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-523 1 Canaan NH MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122   2023-04-27   
603-523 2 Canaan NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2007-01-30   
603-523 3 Canaan NH CANNNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-523 4 Canaan NH CANNNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-523 5 Canaan NH MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122   2022-10-06   
603-523 7 Canaan NH CANNNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-523 8 Canaan NH CANNNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-523 9 Canaan NH CANNNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-524 A Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-525 A Hancock NH HNCCNHSCRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-525 0 Hancock NH   145J TERRA NOVA TELECOM INC. 122   2021-12-11   
603-525 3 Hancock NH HNCCNHSCRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-525 4 Hancock NH HNCCNHSCRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-525 6 Hancock NH   145J TERRA NOVA TELECOM INC. 122   2022-07-01   
603-525 7 Hancock NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-04   
603-525 8 Hancock NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2006-10-30   
603-525 9 Hancock NH HNCCNHSCRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-526 A New London NH NWLNNHXARP0  0045 KEARSARGE TEL. CO. 122      
603-527 A Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-527 0 Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-527 1 Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-527 2 Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-527 3 Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-527 4 Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-527 5 Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-527 6 Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-527 7 Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-527 8 Laconia NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2008-04-18   
603-527 9 Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-528 A Laconia NH LACNNHNMDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-529 A Weare NH WEARNHXADS1  0039 GRANITE STATE TEL., INC. 122      
603-530 A Bristol NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-530 0 Bristol NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-530 1 Bristol NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-09-18   
603-530 2 Bristol NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-530 4 Bristol NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2014-11-10   
603-530 5 Bristol NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2014-11-10   
603-531 A Portsmouth NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-531 0 Portsmouth NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-531 1 Portsmouth NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-531 2 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2016-07-01   
603-531 3 Portsmouth NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-531 4 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2007-07-19   
603-531 5 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2007-07-19   
603-531 6 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2007-07-19   

<< 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 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.