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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Switch: TCSNAZMAXDY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
520-386 2 Benson AZ 506J TWILIO INTERNATIONAL, INC. 668   2020-12-28   
520-453 6 Tombstone AZ 506J TWILIO INTERNATIONAL, INC. 668   2020-12-28   
520-473 7 Sierra Vista AZ 506J TWILIO INTERNATIONAL, INC. 668   2021-01-24   
520-501 A Tucson AZ 506J TWILIO INTERNATIONAL, INC. 668      
520-501 5 Tucson AZ 506J TWILIO INTERNATIONAL, INC. 668   2020-12-19   
520-503 7 Willcox AZ 506J TWILIO INTERNATIONAL, INC. 668   2021-02-21   
520-521 5 San Manuel AZ 506J TWILIO INTERNATIONAL, INC. 668   2020-12-28   
520-525 3 Bisbee AZ 506J TWILIO INTERNATIONAL, INC. 668   2020-12-28   
520-536 7 Douglas AZ 506J TWILIO INTERNATIONAL, INC. 668   2021-02-21   
520-593 3 Hayden AZ 506J TWILIO INTERNATIONAL, INC. 668   2021-02-23   
520-924 5 Nogales AZ 506J TWILIO INTERNATIONAL, INC. 668   2020-12-28   
928-351 2 Globe AZ 506J TWILIO INTERNATIONAL, INC. 668   2020-12-28   
928-361 4 Pima AZ 506J TWILIO INTERNATIONAL, INC. 668   2020-12-28   
928-946 4 Safford AZ 506J TWILIO INTERNATIONAL, INC. 668   2020-12-28   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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