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: SNANTXEDDS0

Remotes:

Switch Switch name Switch type
KNDYTXKNRS0  KENEDY  RLC 
KRCYTXFCRS0  FALLS CITY  RLC 
KRCYTXKCRS0  KARNES CITY  RLC 
RNGETXRURS0  RUNGE  RLC 
SNANTXJARS0  SAN ANTONIO JARRETT  RSC 
SNANTXPARS0  SAN ANTONIO PALO ALTO  RSC 
SNANTXSARS1  SAN ANTONIO SAYERS  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-304 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-333 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-337 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-359 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-360 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-648 A San Antonio TX 9533 SOUTHWESTERN BELL 566      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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