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: HSTNTXYANMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
979-614 4 Freeport TX 506J TWILIO INTERNATIONAL, INC. 560   2020-10-08   
979-633 1 Columbus TX 506J TWILIO INTERNATIONAL, INC. 560   2020-10-08   
979-636 2 Wharton TX 506J TWILIO INTERNATIONAL, INC. 560   2020-10-08   
979-645 5 Hempstead TX 506J TWILIO INTERNATIONAL, INC. 560   2020-10-08   
979-766 7 East Bernard TX 506J TWILIO INTERNATIONAL, INC. 560   2020-10-08   
979-803 9 Burton TX 506J TWILIO INTERNATIONAL, INC. 560   2020-10-08   

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

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