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: 906 [Rate centres in NPA 906] [Dial plan for NPA 906]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-448 A Iron Mountain MI PRKNMIATQMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 342   2012-03-17   
906-448 0 Iron Mountain MI   991E BANDWIDTH.COM CLEC, LLC - MI 342   2019-01-03   
906-448 1 Iron Mountain MI   746G UPPER PENINSULA TELEPHONE COMPANY - MI 342   2015-10-26   
906-448 3 Iron Mountain MI   7279 MCI WORLDCOM COMMUNICATIONS, INC. - MI 342   2019-09-16   
906-448 4 Iron Mountain MI   543C ONVOY, LLC - MI 342   2019-01-25   
906-448 5 Iron Mountain MI   516C AT&T CORP. 342   2012-12-22   
906-448 6 Iron Mountain MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 342   2012-03-17   
906-448 7 Iron Mountain MI   7575 CENTURYLINK COMMUNICATIONS LLC 342   2018-03-10   
906-448 8 Iron Mountain MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2015-11-23   
906-448 9 Iron Mountain MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2015-11-23   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.