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: NATNMAMADS0

Remotes:

Switch Switch name Switch type
CHFDMASBRS1  CHESTERFIELD  RSC 
CMTNMAMARS1  CUMMINGTON  RSC 
CNWYMASHRS1  CONWAY  RSC 
HTFDMACHRS1  HATFIELD  RSC 
WLBGMAMARS1  WILLIAMSBURG  RSC 
WOTNMAWIRS1  WORTHINGTON  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
413-582 A Northampton MA 9102 VERIZON NEW ENGLAND INC. 126      
413-584 A Northampton MA 9102 VERIZON NEW ENGLAND INC. 126      
413-585 A Northampton MA 9102 VERIZON NEW ENGLAND INC. 126      
413-586 A Northampton MA 9102 VERIZON NEW ENGLAND INC. 126      
413-587 A Northampton MA 9102 VERIZON NEW ENGLAND INC. 126      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.