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: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-457 A Detroit Zone 6 MI SFLDMIWKDS0  4125 XO COMMUNICATIONS SERVICES, INC. - MI 340      
313-457 0 Detroit Zone 6 MI SFLDMIWKDS0  4125 XO COMMUNICATIONS SERVICES, INC. - MI 340      
313-457 1 Detroit Zone 6 MI SFLDMIWKDS0  4125 XO COMMUNICATIONS SERVICES, INC. - MI 340      
313-457 2 Detroit Zone 6 MI SFLDMIWKDS0  4125 XO COMMUNICATIONS SERVICES, INC. - MI 340      
313-457 3 Detroit Zone 6 MI LIVNMIUX0MD  5562 METRO PCS, INC. 340   2006-01-29   
313-457 4 Detroit Zone 6 MI LIVNMIUX0MD  5562 METRO PCS, INC. 340   2007-03-10   
313-457 5 Detroit Zone 6 MI LIVNMIUX0MD  5562 METRO PCS, INC. 340   2006-01-29   
313-457 6 Detroit Zone 6 MI SFLDMIWKDS0  4125 XO COMMUNICATIONS SERVICES, INC. - MI 340      
313-457 7 Detroit Zone 6 MI LIVNMIUX0MD  5562 METRO PCS, INC. 340   2007-03-10   
313-457 8 Detroit Zone 6 MI   279B CLEAR RATE COMMUNICATIONS - CLEC - MI 340   2019-04-28   
313-457 9 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-10   

Last updated: Sun, 07 Feb 2021 01:52:50 UTC

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