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: DTRTTXXAPS0

Remotes:

Switch Switch name Switch type
BAWLTXXARP0  BAGWELL  RP 
NGLYTXXARP0  NEGLEY  RP 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
903-418 A Detroit TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 552      
903-418 9 Detroit TX 1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 552   2015-04-17   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.