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: 947 [Rate centres in NPA 947] [Dial plan for NPA 947]

NXX: 479

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
947-479 A Rochester MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
947-479 0 Rochester MI LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2021-04-16   
947-479 1 Rochester MI LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2021-04-16   
947-479 2 Rochester MI SFLDMIMK3MD  197D VONAGE AMERICA LLC 340   2021-05-29   
947-479 3 Rochester MI SFLDMIMK3MD  197D VONAGE AMERICA LLC 340   2021-05-29   
947-479 4 Rochester MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-02-15   
947-479 5 Rochester MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-02-15   
947-479 6 Rochester MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-02-15   
947-479 7 Rochester MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-02-15   
947-479 8 Rochester MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-02-15   
947-479 9 Rochester MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2021-02-26   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.