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: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-436 A Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-436 0 Detroit Zone 6 MI WAYNMIMNXNX  8935 COMCAST PHONE OF MICHIGAN, LLC - MI 340   2012-03-18   
313-436 1 Detroit Zone 6 MI WAYNMIMNXNX  8935 COMCAST PHONE OF MICHIGAN, LLC - MI 340   2011-06-22   
313-436 2 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-436 3 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-436 4 Detroit Zone 6 MI WAYNMIMNXNX  8935 COMCAST PHONE OF MICHIGAN, LLC - MI 340   2011-06-22   
313-436 5 Detroit Zone 6 MI DTRTMIBASMD  516C AT&T CORP. 340   2011-06-29   
313-436 6 Detroit Zone 6 MI SFLDMIWKDS3  260E YMAX COMMUNICATIONS CORP. - MI 340   2011-03-21   
313-436 7 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-436 8 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-436 9 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      

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

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