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: PTLVTXXADS0

Remotes:

Switch Switch name Switch type
PNCMTXXARS0  POINT COMFORT  GTR 
VNDRTXXARS0  VANDERBILT  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
361-487 0 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-487 1 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-487 6 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-487 9 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-551 A Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-551 2 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-551 3 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-551 4 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-552 A Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-553 A Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-553 1 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-553 4 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-553 5 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-553 6 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-553 7 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-553 8 Port Lavaca TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      

Last updated: Sat, 02 May 2026 12:20:53 UTC

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