Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 248 [Rate centres in NPA 248] [Dial plan for NPA 248]

NXX: 509

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-509 A Troy MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2025-01-15   
248-509 0 Troy MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2014-03-24   
248-509 1 Troy MI   508J CENTURYLINK COMMUNICATIONS, LLC 340   2013-02-25   
248-509 2 Troy MI   543C ONVOY, LLCV - MI 340   2013-03-21   
248-509 3 Troy MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-03-14   
248-509 4 Troy MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2013-03-31   
248-509 5 Troy MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2014-08-31   
248-509 6 Troy MI   543C ONVOY, LLCV - MI 340   2015-06-15   
248-509 7 Troy MI   318J COMCAST IP PHONE, LLC 340   2014-12-10   
248-509 8 Troy MI   543C ONVOY, LLCV - MI 340   2014-10-11   
248-509 9 Troy MI   543C ONVOY, LLCV - MI 340   2014-10-11   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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