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: MRMCNHYADS1

Remotes:

Switch Switch name Switch type
BDFRNHAMRS1  BEDFORD  EXM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
603-262 A Merrimack NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-423 A Merrimack NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-424 A Merrimack NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-429 A Merrimack NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-440 A Merrimack NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-683 A Merrimack NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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