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: GRHMORXBCG1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
503-465 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
503-491 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
503-492 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
503-618 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
503-660 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
503-661 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
503-665 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
503-666 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
503-667 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
503-669 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
503-674 A Gresham OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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