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: AMHRMAFEDS0

Remotes:

Switch Switch name Switch type
AMHRMASPRS2  AMHERST SOUTH PROSPECT  EXM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
413-542 A Amherst MA 9102 VERIZON NEW ENGLAND INC. 126      
413-545 A Amherst MA 9102 VERIZON NEW ENGLAND INC. 126      
413-546 A Amherst MA 9102 VERIZON NEW ENGLAND INC. 126      
413-548 A Amherst (Franklin County) MA 9102 VERIZON NEW ENGLAND INC. 126      
413-549 A Amherst MA 9102 VERIZON NEW ENGLAND INC. 126      
413-573 A Amherst MA 9102 VERIZON NEW ENGLAND INC. 126      
413-577 A Amherst MA 9102 VERIZON NEW ENGLAND INC. 126      
413-992 A Amherst MA 9102 VERIZON NEW ENGLAND INC. 126      

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

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