Local Calling Guide

Area code/prefix search

Search by area code/prefix (NPA/NXX) or OCN

  • 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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Last updated: Thu, 18 Dec 2014 10:58:19 UTC

How to use this page

NPA: 506 [Rate centres in NPA 506] [Dial plan for NPA 506]

NXX: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
506-821 A Clair NB EDMNNB030MD 743B Rogers Cable Communications Inc. [link] 888 map

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