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: NSBYTXXADS1

Remotes:

Switch Switch name Switch type
KEMHTXXAH01  KEMAH MAIN (ISDN)  SCX 
KEMHTXXBH01  KEMAH LAKESHORE (ISDN)  SCX 
LGCYTXXAH02  LEAGUE CITY (ISDN)  SCX 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-333 A Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-335 A Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-335 0 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-335 1 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-335 2 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-335 3 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-335 4 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-335 5 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-335 7 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-335 8 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-335 9 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-336 A Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-336 2 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-336 3 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-336 5 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-336 6 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-336 7 Kemah TX 2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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