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: 299

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-299 A Detroit Zone 6 MI TAYLMIWKDS0  9323 MICHIGAN BELL TEL CO 340      
313-299 0 Detroit Zone 6 MI TAYLMIWKDS0  9323 MICHIGAN BELL TEL CO 340      
313-299 1 Detroit Zone 6 MI TAYLMIWKDS0  9323 MICHIGAN BELL TEL CO 340      
313-299 2 Detroit Zone 6 MI TAYLMIWKDS0  9323 MICHIGAN BELL TEL CO 340      
313-299 3 Detroit Zone 6 MI TAYLMIWKDS0  9323 MICHIGAN BELL TEL CO 340      
313-299 4 Detroit Zone 6 MI TAYLMIWKDS0  9323 MICHIGAN BELL TEL CO 340      
313-299 5 Detroit Zone 6 MI TAYLMIWKDS0  9323 MICHIGAN BELL TEL CO 340      
313-299 6 Detroit Zone 6 MI FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2006-04-03   
313-299 7 Detroit Zone 6 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2024-05-24   
313-299 8 Detroit Zone 6 MI TAYLMIWKDS0  9323 MICHIGAN BELL TEL CO 340      
313-299 9 Detroit Zone 6 MI TAYLMIWKDS0  9323 MICHIGAN BELL TEL CO 340      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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