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.

Pontiac, MI

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
248-639 9 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2013-02-03   
248-648 A   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
248-648 0 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2011-06-05   
248-648 1 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2009-03-07   
248-648 2   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
248-648 3 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-01-08   
248-648 4 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-01-08   
248-648 5 LIVNMIUX3MD  5562 METROPCS, INC. 340   2010-04-02   
248-648 6   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
248-648 7 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-08-03   
248-648 8 FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2007-12-11   
248-648 9 LIVNMIUX3MD  5562 METROPCS, INC. 340   2010-04-02   
248-672 A DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
248-681 A PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-682 A PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-683 A PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-701 A DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
248-705 A DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
248-706 A PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-706 0 PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-706 1 PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-706 2 PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-706 3 PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-706 4 PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-706 5 PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-706 6 WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340   2016-03-21   
248-706 7 PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-706 8 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2021-07-08   
248-706 9 PNTCMIWSRP0  9323 MICHIGAN BELL TEL CO 340      
248-724 A SFLDMIDICA0  2550 123.NET, LLC 340      
248-724 0 SFLDMIDICA0  2550 123.NET, LLC 340      
248-724 1 SFLDMIDICA0  2550 123.NET, LLC 340      
248-724 2 SFLDMIDICA0  2550 123.NET, LLC 340      
248-724 3 SFLDMIDICA0  2550 123.NET, LLC 340      
248-724 4 SFLDMIDICA0  2550 123.NET, LLC 340      
248-724 5 SFLDMIDICA0  2550 123.NET, LLC 340      
248-724 6 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2011-02-24   
248-724 7 SFLDMIDICA0  2550 123.NET, LLC 340      
248-724 8 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2011-02-24   
248-724 9 SFLDMIDICA0  2550 123.NET, LLC 340      
248-725 A CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      
248-732 A DTRTMIBADS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
248-732 0 DTRTMIBADS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
248-732 1 DTRTMIBADS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
248-732 2 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-02-09   
248-732 3   3535 ACD TELECOM, INC. - MI 340   2005-12-08   
248-732 4 PNTCMINERPA  9323 MICHIGAN BELL TEL CO 340   2006-03-22   
248-732 5 PNTCMINERPA  9323 MICHIGAN BELL TEL CO 340   2006-03-22   
248-732 6 PNTCMINERPA  9323 MICHIGAN BELL TEL CO 340   2006-03-22   
248-732 7 DTRTMIBASMD  516C AT&T CORP. 340   2006-07-07   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.