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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-838 4 Lisbon NH   145J TERRA NOVA TELECOM INC. 122      
603-838 5 Lisbon NH LSBNNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-838 6 Lisbon NH LSBNNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-838 7 Lisbon NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      
603-838 8 Lisbon NH   793K TWC IP ENABLED SERVICES, LLC 122      
603-838 9 Lisbon NH LSBNNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-839 A Farmington NH   793K TWC IP ENABLED SERVICES, LLC 122      
603-839 1 Farmington NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122      
603-839 5 Farmington NH   073H TELNYX LLC 122      
603-839 6 Farmington NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122      
603-839 9 Farmington NH   793K TWC IP ENABLED SERVICES, LLC 122      
603-840 A Epsom NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-840 0 Epsom NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-840 1 Epsom NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-840 2 Epsom NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-840 3 Epsom NH   073H TELNYX LLC 122      
603-840 4 Epsom NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-840 5 Epsom NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-840 6 Epsom NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-840 8 Epsom NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-840 9 Epsom NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
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      
603-841 1 Somersworth NH DOVRNHTH8MD  2698 CTC COMMUNICATIONS CORP. - NH 122      
603-841 2 Somersworth NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-841 3 Somersworth NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-841 4 Somersworth NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
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      
603-841 7 Somersworth NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-841 8 Somersworth NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-841 9 Somersworth NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-842 A Dover NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      
603-842 0 Dover NH MNCHNHNI9MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-842 1 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-842 2 Dover NH MNCHNHNI9MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-842 3 Dover NH MNCHNHNI9MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-842 4 Dover NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-842 5 Dover NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-842 6 Dover NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      
603-842 7 Dover NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-842 8 Dover NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      
603-842 9 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-843 A Newport NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-843 0 Newport NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-843 1 Newport NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-843 2 Newport NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-843 3 Newport NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-843 4 Newport NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-843 5 Newport NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-843 6 Newport NH MNCHNHCOX9Y  2698 CTC COMMUNICATIONS CORP. - NH 122      
603-843 7 Newport NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-843 8 Newport NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-843 9 Newport NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-845 A Derry NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-845 0 Derry NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-845 1 Derry NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-845 2 Derry NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-845 3 Derry NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      
603-845 4 Derry NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-845 5 Derry NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122      
603-845 6 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-845 7 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-845 8 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-845 9 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
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      
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      
603-846 8 Twin Mountain NH   793K TWC IP ENABLED SERVICES, LLC 122      
603-846 9 Twin Mountain NH TWMTNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-847 A Sullivan NH SLLVNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-847 0 Sullivan NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-847 3 Sullivan NH SLLVNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-847 4 Sullivan NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122      
603-847 5 Sullivan NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-847 6 Sullivan NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-847 7 Sullivan NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-847 9 Sullivan NH SLLVNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-848 A Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-850 A Lisbon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-850 8 Lisbon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-850 9 Lisbon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-851 A Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-851 0 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-851 1 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-851 2 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-851 3 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-851 4 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-851 5 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-851 6 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-851 7 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-851 8 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-851 9 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-852 A Keene NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-852 0 Keene NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-852 1 Keene NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-852 2 Keene NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-852 3 Keene NH   5562 METROPCS, INC. 122      
603-852 4 Keene NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      

<< 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 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.