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.
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
206-231 5 Des Moines WA 073H TELNYX LLC 674   2018-08-28   
206-316 A Seattle WA 073H TELNYX LLC 674      
206-580 4 Seattle WA 073H TELNYX LLC 674   2019-12-27   
206-880 7 Seattle WA 073H TELNYX LLC 674   2017-12-28   
253-289 A Auburn WA 073H TELNYX LLC 674      
253-289 3 Auburn WA 073H TELNYX LLC 674   2017-01-20   
253-294 7 Auburn WA 073H TELNYX LLC 674   2019-12-27   
253-294 9 Auburn WA 073H TELNYX LLC 674   2019-09-10   
253-765 4 Des Moines WA 073H TELNYX LLC 674   2017-07-26   
253-999 A Tacoma WA 073H TELNYX LLC 674      
253-999 9 Tacoma WA 073H TELNYX LLC 674   2017-04-15   
360-325 4 Whatcom County WA 073H TELNYX LLC 674   2017-07-26   
360-325 8 Whatcom County WA 073H TELNYX LLC 674   2019-03-18   
360-389 4 Whatcom County WA 073H TELNYX LLC 674   2019-12-27   
360-995 0 Olympia WA 073H TELNYX LLC 674   2019-11-30   
425-272 9 Renton WA 073H TELNYX LLC 674   2017-07-26   
425-433 9 Maple Valley WA 073H TELNYX LLC 674   2019-10-25   
425-800 A Bellevue WA 073H TELNYX LLC 674      
425-800 0 Bellevue WA 073H TELNYX LLC 674   2017-04-15   
425-800 8 Bellevue WA 073H TELNYX LLC 674   2017-04-15   
564-240 6 Silverdale WA 073H TELNYX LLC 674   2018-10-01   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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