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: DCSNTXXAPMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-522 0 Kemah TX 624H ONVOY SPECTRUM, LLC 560   2021-05-22   
281-522 2 Kemah TX 624H ONVOY SPECTRUM, LLC 560   2020-07-08   
281-522 4 Kemah TX 624H ONVOY SPECTRUM, LLC 560   2020-07-08   
281-522 5 Kemah TX 624H ONVOY SPECTRUM, LLC 560   2020-07-08   
281-522 6 Kemah TX 624H ONVOY SPECTRUM, LLC 560   2020-07-08   
281-522 7 Kemah TX 624H ONVOY SPECTRUM, LLC 560   2020-07-08   
281-522 8 Kemah TX 624H ONVOY SPECTRUM, LLC 560   2021-05-22   
281-559 8 Kemah TX 624H ONVOY SPECTRUM, LLC 560   2021-05-22   
281-559 9 Kemah TX 624H ONVOY SPECTRUM, LLC 560   2021-05-22   
346-788 1 League City TX 624H ONVOY SPECTRUM, LLC 560   2021-11-21   
346-788 2 League City TX 624H ONVOY SPECTRUM, LLC 560   2021-07-09   
346-788 9 League City TX 624H ONVOY SPECTRUM, LLC 560   2021-11-21   
346-810 6 Dickinson TX 624H ONVOY SPECTRUM, LLC 560   2021-07-09   
346-902 A Dickinson TX 624H ONVOY SPECTRUM, LLC 560      
346-902 9 Dickinson TX 624H ONVOY SPECTRUM, LLC 560   2022-01-15   
409-977 5 Hitchcock-Santa Fe TX 624H ONVOY SPECTRUM, LLC 560   2024-12-13   
832-285 0 Dickinson TX 624H ONVOY SPECTRUM, LLC 560   2021-11-26   
832-285 3 Dickinson TX 624H ONVOY SPECTRUM, LLC 560   2021-11-26   
832-737 3 Kemah TX 624H ONVOY SPECTRUM, LLC 560   2024-10-15   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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