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: NRFDOHXAJMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
234-704 5 Northfield OH 624H ONVOY SPECTRUM, LLC 320   2021-08-01   
234-704 7 Northfield OH 624H ONVOY SPECTRUM, LLC 320   2021-08-01   
234-710 A Northfield OH 624H ONVOY SPECTRUM, LLC 320      
234-710 0 Northfield OH 624H ONVOY SPECTRUM, LLC 320   2021-05-24   
234-710 2 Northfield OH 624H ONVOY SPECTRUM, LLC 320   2020-07-10   
234-710 3 Northfield OH 624H ONVOY SPECTRUM, LLC 320   2020-07-10   
234-710 5 Northfield OH 624H ONVOY SPECTRUM, LLC 320   2021-02-23   
234-710 6 Northfield OH 624H ONVOY SPECTRUM, LLC 320   2021-02-23   
234-710 7 Northfield OH 624H ONVOY SPECTRUM, LLC 320   2019-12-07   

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

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