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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 248 [Rate centres in NPA 248] [Dial plan for NPA 248]

NXX: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-331 A Southfield MI SFLDMIOKDS0  9323 MICHIGAN BELL TEL CO 340      
248-331 0 Southfield MI SFLDMIOKDS0  9323 MICHIGAN BELL TEL CO 340      
248-331 1 Southfield MI SFLDMIOKDS0  9323 MICHIGAN BELL TEL CO 340      
248-331 2 Southfield MI DTRTMIBHMMD  8685 US XCHANGE OF MICHIGAN LLC DBA CHOICE ONE COMM MI 340   2009-10-23   
248-331 3 Southfield MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2010-04-02   
248-331 4 Southfield MI SFLDMIOKDS0  9323 MICHIGAN BELL TEL CO 340      
248-331 5 Southfield MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2014-02-17   
248-331 6 Southfield MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2007-10-12   
248-331 7 Southfield MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2007-10-12   
248-331 8 Southfield MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2017-07-13   
248-331 9 Southfield MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2010-11-04   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.