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: MOJVCAAI0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-235 9 Rosamond CA 973E RACE TELECOMMUNICATIONS, INC. - CA 734   2016-11-20   
661-278 9 Edwards CA 973E RACE TELECOMMUNICATIONS, INC. - CA 734   2016-11-20   
661-380 A Bakersfield: Main DA CA 973E RACE TELECOMMUNICATIONS, INC. - CA 734      
661-380 1 Bakersfield: Main DA CA 973E RACE TELECOMMUNICATIONS, INC. - CA 734   2009-06-19   
661-754 8 Mojave CA 973E RACE TELECOMMUNICATIONS, INC. - CA 734   2016-11-20   
661-821 9 Tehachapi CA 973E RACE TELECOMMUNICATIONS, INC. - CA 734   2016-11-20   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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