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: 989 [Rate centres in NPA 989] [Dial plan for NPA 989]

NXX: 455

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-455 A Vassar MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344      
989-455 0 Vassar MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2010-04-12   
989-455 1 Vassar MI SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2010-09-11   
989-455 2 Vassar MI SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2011-07-09   
989-455 3 Vassar MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2012-10-14   
989-455 4 Vassar MI SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2014-07-27   
989-455 5 Vassar MI SGNWMIATX0X  516C AT&T CORP. 344   2012-12-03   
989-455 6 Vassar MI SGNWMIACDS1  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 344   2014-05-03   
989-455 7 Vassar MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2013-04-05   
989-455 8 Vassar MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2016-03-28   
989-455 9 Vassar MI SGNWMIFADS1  3535 ACD TELECOM, INC. - MI 344   2011-09-05   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.