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: 635

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-635 A Detroit Zone 4 MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340      
313-635 0 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2016-01-04   
313-635 1 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2016-01-04   
313-635 2 Detroit Zone 4 MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340   2015-06-26   
313-635 3 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2016-05-05   
313-635 4 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2016-05-05   
313-635 5 Detroit Zone 4 MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340   2016-03-21   
313-635 6 Detroit Zone 4 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2016-05-08   
313-635 7 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2017-07-13   
313-635 8 Detroit Zone 4 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2017-12-21   
313-635 9 Detroit Zone 4 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2017-07-31   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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