Local Calling Guide

Area code/prefix search

Search by area code/prefix (NPA/NXX) or OCN

  • 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.

Last updated: Thu, 18 Dec 2014 10:58:19 UTC

How to use this page

Switch: SNANTXCADS3

See all switches at this location

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



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