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.

Switch: MLFRNHSODS0

Remotes:

Switch Switch name Switch type
GFTWNHWHRS1  GOFFSTOWN  5ER 
GNFDNHMARS1  GREENFIELD  5ER 
NBTNNHHPRS1  NEW BOSTON  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
603-249 A Milford NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-672 A Milford NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-673 A Milford NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.