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
603-482 9 Errol NH ERRLNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-483 A Candia NH CANDNHDERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-483 0 Candia NH CANDNHDERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-483 1 Candia NH CANDNHDERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-483 2 Candia NH CANDNHDERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-483 3 Candia NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-483 4 Candia NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-483 5 Candia NH CANDNHDERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-483 6 Candia NH MNCHNHCOX1Y  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122      
603-483 7 Candia NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-483 8 Candia NH CANDNHDERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-483 9 Candia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-484 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-484 0 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-484 1 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-484 2 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-484 3 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-484 4 Nashua NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-484 5 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-484 6 Nashua NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-484 7 Nashua NH MNCHNHCO16Z  508J CENTURYLINK COMMUNICATIONS, LLC 122      
603-484 8 Nashua NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122      
603-484 9 Nashua NH MNCHNHNI9MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-485 A Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-485 0 Suncook NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-485 1 Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-485 2 Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-485 3 Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-485 4 Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-485 5 Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-485 6 Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-485 7 Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-485 8 Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-485 9 Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-486 A Manchester NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-486 0 Manchester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-486 1 Manchester NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-486 2 Manchester NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-486 3 Manchester NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-486 4 Manchester NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-486 5 Manchester NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-486 6 Manchester NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-486 7 Manchester NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-486 8 Manchester NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-486 9 Manchester NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-487 A New Boston NH NBTNNHHPRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-487 0 New Boston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-487 1 New Boston NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-487 2 New Boston NH NBTNNHHPRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-487 3 New Boston NH NBTNNHHPRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-487 5 New Boston NH NBTNNHHPRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-487 6 New Boston NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-487 7 New Boston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-487 9 New Boston NH NBTNNHHPRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-488 A Bedford NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-488 0 Bedford NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      
603-488 1 Bedford NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-488 2 Bedford NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-488 3 Bedford NH   145J TERRA NOVA TELECOM INC. 122      
603-488 5 Bedford NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-488 6 Bedford NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-489 A Hampstead NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-489 0 Hampstead NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      
603-489 1 Hampstead NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-489 2 Hampstead NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-489 3 Hampstead NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-489 4 Hampstead NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122      
603-489 5 Hampstead NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-489 6 Hampstead NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-489 7 Hampstead NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-489 8 Hampstead NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-489 9 Hampstead NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-490 A Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-491 A Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-492 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-493 A Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-494 A Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-495 A Washington NH WEARNHXADS1  0039 GRANITE STATE TEL., INC. 122      
603-496 A Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-497 A Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 0 Goffstown NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-497 1 Goffstown NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-497 2 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 3 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 4 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 5 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 6 Goffstown NH   145J TERRA NOVA TELECOM INC. 122      
603-497 7 Goffstown NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-497 8 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 9 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-498 A Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-499 A Keene NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-499 0 Keene NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-499 1 Keene NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-499 2 Keene NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-499 3 Keene NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-499 4 Keene NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-499 5 Keene NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-499 6 Keene NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-499 7 Keene NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 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: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.