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
603-707 0 Meredith NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-707 1 Meredith NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-707 2 Meredith NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-707 3 Meredith NH MNCHNHCOX9Y  2698 CTC COMMUNICATIONS CORP. - NH 122      
603-707 4 Meredith NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-707 5 Meredith NH   996E BANDWIDTH.COM CLEC, LLC - NH 122      
603-707 6 Meredith NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-707 7 Meredith NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-707 8 Meredith NH MNCHNHNI9MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-707 9 Meredith NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-708 A Canterbury NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-708 0 Canterbury NH   073H TELNYX LLC 122      
603-708 1 Canterbury NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-708 2 Canterbury NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      
603-708 3 Canterbury NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-709 A Plainfield NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-709 0 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-709 2 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-709 3 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-709 4 Plainfield NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-709 5 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-709 6 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-709 7 Plainfield NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-709 8 Plainfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-710 A Washington NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-710 0 Washington NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-710 8 Washington NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-710 9 Washington NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-712 A Pike NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-712 0 Pike NH   145J TERRA NOVA TELECOM INC. 122      
603-712 1 Pike NH   145J TERRA NOVA TELECOM INC. 122      
603-712 5 Pike NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-712 9 Pike NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-713 A Nashua NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-713 0 Nashua NH MNCHNHCO23Z  073H TELNYX LLC 122      
603-713 1 Nashua NH MNCHNHCO23Z  073H TELNYX LLC 122      
603-713 2 Nashua NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122      
603-713 3 Nashua NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-713 4 Nashua NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-713 5 Nashua NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-713 6 Nashua NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-713 7 Nashua NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-713 8 Nashua NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-713 9 Nashua NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-714 A Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-714 0 Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-714 1 Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-714 2 Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-714 3 Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-714 4 Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-714 5 Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-714 6 Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-714 7 Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-714 8 Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-714 9 Bedford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-715 A Concord NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-715 0 Concord NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-715 1 Concord NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-715 2 Concord NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-715 3 Concord NH MNCHNHCOX9Y  2698 CTC COMMUNICATIONS CORP. - NH 122      
603-715 4 Concord NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-715 5 Concord NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-715 6 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-715 7 Concord NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-715 8 Concord NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-715 9 Concord NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-716 A Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-716 0 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-716 1 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-716 2 Manchester NH MNCHNHCOXCZ  996E BANDWIDTH.COM CLEC, LLC - NH 122      
603-716 3 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-716 4 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-716 5 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-716 6 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-716 7 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-716 8 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-716 9 Manchester NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122      
603-717 A Concord NH MNCHNHCOX9Y  2527 CHOICE ONE OF NEW HAMPSHIRE, INC. 122      
603-717 0 Concord NH MNCHNHCOX9Y  2527 CHOICE ONE OF NEW HAMPSHIRE, INC. 122      
603-717 1 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-717 2 Concord NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-717 3 Concord NH SALMNHNB5MD  9247 BROADVIEW NETWORKS, INC. - NH 122      
603-717 4 Concord NH MNCHNHNI9MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-717 5 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-717 6 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-717 7 Concord NH MNCHNHCOX9Y  2527 CHOICE ONE OF NEW HAMPSHIRE, INC. 122      
603-717 8 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-717 9 Concord NH MNCHNHCOX9Y  2527 CHOICE ONE OF NEW HAMPSHIRE, INC. 122      
603-718 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-718 0 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-718 1 Nashua NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-718 2 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-718 3 Nashua NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-718 4 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-718 5 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-718 6 Nashua NH MNCHNHCOXCZ  996E BANDWIDTH.COM CLEC, LLC - NH 122      
603-718 7 Nashua NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-718 8 Nashua NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-718 9 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-719 A Keene NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 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: LES.NET

Like this site? We accept donations via PayPal.