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: Sun, 16 Jun 2013 02:49:06 UTC

How to use this page

NPA: 734 [Rate centres in NPA 734] [Dial plan for NPA 734]

NXX: 489

NPA-NXX-X Rate Centre Region Switch OCN LATA Eff date Disc date Map
734-489 Ann Arbor MI FLNTMICDDS0 7701 PHONE MICHIGAN [link] 340 map
734-489-0 Ann Arbor MI 7701 PHONE MICHIGAN [link] 340 map
734-489-1 Ann Arbor MI 7701 PHONE MICHIGAN [link] 340
734-489-2 Ann Arbor MI 6664 SPRINT SPECTRUM L.P. [link] 340 2010-12-19
734-489-3 Ann Arbor MI 6664 SPRINT SPECTRUM L.P. [link] 340 2010-12-19
734-489-4 Ann Arbor MI 6664 SPRINT SPECTRUM L.P. [link] 340 2010-12-19
734-489-5 Ann Arbor MI 6664 SPRINT SPECTRUM L.P. [link] 340 2010-12-19
734-489-6 Ann Arbor MI 7701 PHONE MICHIGAN [link] 340
734-489-7 Ann Arbor MI 7701 PHONE MICHIGAN [link] 340
734-489-8 Ann Arbor MI 7701 PHONE MICHIGAN [link] 340
734-489-9 Ann Arbor MI 7701 PHONE MICHIGAN [link] 340


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