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: FRBGTXXAVMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
830-733 A Fredericksburg TX 1997 WINDSTREAM COMMUNICATIONS TELECOM, L.P. - TX 566   2005-11-03   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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