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
603-439 8 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2024-02-15   
603-440 A Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-440 0 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2017-08-22   
603-440 1 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2016-12-13   
603-440 2 Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-440 3 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2003-08-03   
603-440 4 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-06-19   
603-440 5 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-02-17   
603-440 6 Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-440 7 Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-440 8 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2002-12-09   
603-440 9 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-08-02   
603-441 A Rochester NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-441 0 Rochester NH MNCHNHAC3MD  939H COMMIO, LLC 122   2021-11-15   
603-441 1 Rochester NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122   2023-01-03   
603-441 2 Rochester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2021-11-13   
603-441 3 Rochester NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122   2022-01-01   
603-441 4 Rochester NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2021-10-24   
603-441 5 Rochester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2022-01-15   
603-441 6 Rochester NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2021-10-24   
603-441 7 Rochester NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122   2022-05-26   
603-441 8 Rochester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2022-07-01   
603-441 9 Rochester NH MNCHNHAC3MD  939H COMMIO, LLC 122   2021-11-15   
603-442 A Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-442 0 Lebanon NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122   2005-01-20   
603-442 1 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-442 2 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-442 3 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-442 4 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2001-02-28   
603-442 5 Lebanon NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122   2004-04-16   
603-442 6 Lebanon NH MNCHNHCOX9Y  2698 CTC COMMUNICATIONS CORP. - NH 122   2004-10-10   
603-442 7 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-442 8 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-442 9 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-443 A Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-443 0 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-443 1 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-443 2 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-443 3 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-443 4 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-443 5 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-443 6 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-443 7 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-443 8 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-443 9 Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-444 A Littleton NH LTTNNHPLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-445 A North Walpole NH BLFLVTHERS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-445 0 North Walpole NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122   2008-08-15   
603-445 2 North Walpole NH BLFLVTHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-445 3 North Walpole NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122   2005-08-16   

<< 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: ISP Telecom

Like this site? We accept donations via PayPal.