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: SHMNTXXADS0

Remotes:

Switch Switch name Switch type
DRCHTXXARL0  DORCHESTER  GTR 
GNTRTXXAH01  GUNTER  GTR 
GOVLTXXBRS0  GORDONVILLE  GTR 
VALSTXXARS0  VAN ALSTYNE  GTR 
WHBOTXXCRS0  WHITESBORO  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
903-209 A Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-209 1 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-294 2 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552   2015-06-05   
903-421 A Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-421 0 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-813 A Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-868 A Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-870 A Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-870 0 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-870 1 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-870 2 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-870 3 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-870 4 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-870 5 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-870 7 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-870 9 Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-891 A Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-892 A Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-893 A Sherman TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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