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: SNANTXCADS3

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-212 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-220 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-222 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-223 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-224 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-226 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-230 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-242 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-270 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-271 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-277 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-299 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-487 A San Antonio TX 9533 SOUTHWESTERN BELL 566      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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