Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 313 [Rate centres in NPA 313] [Dial plan for NPA 313]

NXX: 738

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-738 A Detroit Zone 5 MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2024-06-08   
313-738 0 Detroit Zone 5 MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-738 1 Detroit Zone 5 MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-738 2 Detroit Zone 5 MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-738 3 Detroit Zone 5 MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-738 4 Detroit Zone 5 MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-738 5 Detroit Zone 5 MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-738 6 Detroit Zone 5 MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-738 7 Detroit Zone 5 MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-738 8 Detroit Zone 5 MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-738 9 Detroit Zone 5 MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.