Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 313 [Rate centres in NPA 313] [Dial plan for NPA 313]

NXX: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-540 A Detroit Zone 4 MI SFLDMIMK3MD  197D VONAGE AMERICA LLC 340      
313-540 0 Detroit Zone 4 MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2024-04-09   
313-540 1 Detroit Zone 4 MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-05-13   
313-540 2 Detroit Zone 4 MI SFLDMIMK3MD  197D VONAGE AMERICA LLC 340   2021-12-03   
313-540 3 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-12-04   
313-540 4 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-12-04   
313-540 5 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-12-04   
313-540 6 Detroit Zone 4 MI   624H ONVOY SPECTRUM, LLC 340   2022-07-13   
313-540 7 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2022-09-30   
313-540 8 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2022-09-30   
313-540 9 Detroit Zone 4 MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2021-12-25   

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

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