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.
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Switch: MNCHNHIE6MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
603-200 A Newmarket NH 318J COMCAST IP PHONE, LLC 122      
603-210 A Suncook NH 318J COMCAST IP PHONE, LLC 122      
603-213 A Milford NH 318J COMCAST IP PHONE, LLC 122      
603-216 A Derry NH 318J COMCAST IP PHONE, LLC 122      
603-232 A Manchester NH 318J COMCAST IP PHONE, LLC 122      
603-244 A Raymond NH 318J COMCAST IP PHONE, LLC 122      
603-260 A Derry NH 318J COMCAST IP PHONE, LLC 122      
603-277 A Hanover NH 318J COMCAST IP PHONE, LLC 122      
603-291 A Greenville NH 318J COMCAST IP PHONE, LLC 122      
603-292 A Newmarket NH 318J COMCAST IP PHONE, LLC 122      
603-343 A Dover NH 318J COMCAST IP PHONE, LLC 122      
603-347 A Kingston NH 318J COMCAST IP PHONE, LLC 122      
603-384 A Goffstown NH 318J COMCAST IP PHONE, LLC 122      
603-392 A Winchester NH 318J COMCAST IP PHONE, LLC 122      
603-397 A Durham NH 318J COMCAST IP PHONE, LLC 122      
603-403 A Rochester NH 318J COMCAST IP PHONE, LLC 122      
603-441 A Rochester NH 318J COMCAST IP PHONE, LLC 122      
603-458 A Salem NH 318J COMCAST IP PHONE, LLC 122      
603-488 A Bedford NH 318J COMCAST IP PHONE, LLC 122      
603-489 A Hampstead NH 318J COMCAST IP PHONE, LLC 122      
603-510 A Meriden NH 318J COMCAST IP PHONE, LLC 122      
603-580 A Exeter NH 318J COMCAST IP PHONE, LLC 122      
603-619 A Laconia NH 318J COMCAST IP PHONE, LLC 122      
603-649 A Jaffrey NH 318J COMCAST IP PHONE, LLC 122      
603-697 A Dover NH 318J COMCAST IP PHONE, LLC 122      
603-705 A Salisbury NH 318J COMCAST IP PHONE, LLC 122      
603-708 A Canterbury NH 318J COMCAST IP PHONE, LLC 122      
603-715 A Concord NH 318J COMCAST IP PHONE, LLC 122      
603-808 A Antrim NH 318J COMCAST IP PHONE, LLC 122      
603-814 A Seabrook NH 318J COMCAST IP PHONE, LLC 122      
603-836 A Manchester NH 318J COMCAST IP PHONE, LLC 122      
603-840 A Epsom NH 318J COMCAST IP PHONE, LLC 122      
603-841 A Somersworth NH 318J COMCAST IP PHONE, LLC 122      
603-877 A New London NH 318J COMCAST IP PHONE, LLC 122      
603-902 A Sutton NH 318J COMCAST IP PHONE, LLC 122      
603-935 A Manchester NH 318J COMCAST IP PHONE, LLC 122      
603-961 A Chichester NH 318J COMCAST IP PHONE, LLC 122      
603-974 A Plaistow NH 318J COMCAST IP PHONE, LLC 122      
603-975 A Boscawen NH 318J COMCAST IP PHONE, LLC 122      
603-977 A Andover NH 318J COMCAST IP PHONE, LLC 122      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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