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.

Farmington, MI

<< 1 2 3 4 5 6 7 8 9 10

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
947-366 7 SFLDMIMK5MD  939H COMMIO, LLC 340   2021-10-11   
947-366 8 SFLDMIMKBMD  516J TON80 COMMUNICATIONS, LLC 340   2021-04-23   
947-366 9 SFLDMIMK5MD  939H COMMIO, LLC 340   2021-10-11   
947-944 A LIVNMIUX0MD  5562 METROPCS, INC. 340      
947-944 0 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-03-18   
947-944 1 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-03-18   
947-944 2 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2022-02-21   
947-944 3 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-944 4 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-944 5 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2022-02-21   
947-944 6 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2022-02-21   
947-944 7 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2022-02-21   
947-944 8 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2022-02-21   
947-944 9 LIVNMIUX0MD  5562 METROPCS, INC. 340   2021-11-28   

<< 1 2 3 4 5 6 7 8 9 10

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.