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: RONKVALKXVX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
540-204 A Roanoke VA 7238 MCI WORLDCOM COMMUNICATIONS, INC. - VA 244   2004-09-11   
540-235 A Pearisburg VA 7238 MCI WORLDCOM COMMUNICATIONS, INC. - VA 244   2009-02-02   

Last updated: Wed, 05 Feb 2020 02:15:44 UTC

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