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: SNANTXEWDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-424 A San Antonio TX 7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 566      
210-538 A San Antonio TX 7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 566      
210-580 A San Antonio TX 7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 566      
210-721 A San Antonio TX 7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 566      
210-743 A San Antonio TX 7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 566      
210-901 A San Antonio TX 7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 566      
726-444 A San Antonio TX 7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 566      
956-531 A Laredo TX 7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 566      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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