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: SNANTXDIDS2

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-308 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-321 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-321 0 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-321 1 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-321 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-321 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-321 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-321 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-321 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-321 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-321 8 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-323 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-323 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-340 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-341 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-342 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-343 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-343 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-343 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-343 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-343 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-343 8 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-344 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-348 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-348 0 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-348 1 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-348 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-348 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-348 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-348 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-348 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-348 8 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-348 9 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-349 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-366 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-377 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-384 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-384 0 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-384 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-384 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-384 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-384 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-384 8 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-442 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-442 0 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-442 1 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-442 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-442 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-442 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-442 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      

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Last updated: Fri, 13 May 2022 22:16:13 UTC

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