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.

Plano, TX

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-535 3 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-535 4 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2003-01-12   
972-535 5 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2004-09-30   
972-535 6 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-02-08   
972-535 7 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-535 8 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-09-24   
972-543 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-553 A FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
972-575 A PLANTXXFDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-577 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-578 A PLANTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-583 A ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 0 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 1 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 2 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 3 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 4 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 5 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2024-01-18   
972-583 6 FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-01-26   
972-583 7 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2024-01-18   
972-583 8 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2024-01-18   
972-583 9 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2024-01-18   
972-596 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-599 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-604 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-605 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 0 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 1 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 2 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 3 IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2008-02-20   
972-608 4 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 5 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 6 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 7 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2008-10-06   
972-608 8 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 9 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-612 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-618 A PLANTXXKDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-633 A PLANTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-665 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 0 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 1 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 2 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 3 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 4 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 5 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2008-05-11   
972-665 6 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-24   
972-665 7 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-24   
972-665 8 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-24   
972-665 9 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-673 A ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 0 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 1 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 2 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 3 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 4 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 5 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 6 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 7 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 8 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 9 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2024-01-18   
972-675 A GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 0 GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 1 GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 2 GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 3 GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 4 GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 5 GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 6 GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 7 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2011-01-12   
972-675 8 GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 9 GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-688 A DLLSTX97XCX  321J HD CARRIER LLC 552      
972-688 0 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 1 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 2 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 3 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 4 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 5 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 6 IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2022-01-14   
972-688 7 IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 8 DLLSTX97XCX  321J HD CARRIER LLC 552   2021-12-26   
972-688 9 DLLSTX97XCX  321J HD CARRIER LLC 552   2021-12-26   
972-696 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 0 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-10-24   
972-696 1 DLLSTXTLDS7  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-696 2 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 3 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 4 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 5 PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 6 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2008-02-15   
972-696 7 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-06-06   
972-696 8 ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2008-12-16   
972-696 9 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-02-21   
972-758 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-767 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-767 0 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-767 1 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-12-19   
972-767 2 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >>

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.