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.

Bismarck, ND

1 2 3 4 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
701-202 A BSMRNDBCX4X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638      
701-202 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638      
701-202 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638      
701-202 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638   2006-06-19   
701-202 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638   2006-06-19   
701-202 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638   2006-09-08   
701-202 5   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2006-01-21   
701-202 6   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2006-02-16   
701-202 7   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2006-02-16   
701-202 8   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2006-04-29   
701-202 9   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2006-06-11   
701-204 A BSMRNDBCQMD  8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638      
701-204 0   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2011-11-25   
701-204 1   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2010-07-11   
701-204 2   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2009-12-18   
701-204 3   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2010-03-21   
701-204 4   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2010-04-29   
701-204 5   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2010-06-29   
701-204 6   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638      
701-204 7   452F ONVOY, LLC - ND 638   2009-11-08   
701-204 8   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2010-06-29   
701-204 9   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2010-12-03   
701-214 A BSMRNDBCQMD  8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638      
701-214 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638   2004-09-13   
701-214 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638   2004-11-26   
701-214 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638   2005-08-29   
701-214 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638   2005-12-22   
701-214 4   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638      
701-214 5   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2006-01-27   
701-214 6   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2006-01-27   
701-214 7   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2006-08-07   
701-214 8   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2006-10-25   
701-214 9   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2006-12-23   
701-220 A BSMRNDBCX4X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638      
701-221 A BSMRNDBCDS0  9631 QWEST CORPORATION 638      
701-222 A BSMRNDBCDS0  9631 QWEST CORPORATION 638      
701-223 A BSMRNDBCDS0  9631 QWEST CORPORATION 638      
701-224 A BSMRNDBCDS0  9631 QWEST CORPORATION 638      
701-226 A BSMRNDBCXDX  6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638      
701-250 A BSMRNDBCDS0  9631 QWEST CORPORATION 638      
701-255 A BSMRNDBCDS0  9631 QWEST CORPORATION 638      
701-258 A BSMRNDBCDS0  9631 QWEST CORPORATION 638      
701-299 A BSMRNDJC0MD  939H COMMIO, LLC 638      
701-299 0   452F ONVOY, LLC - ND 638   2021-07-08   
701-299 1   5562 METROPCS, INC. 638   2021-05-08   
701-299 2   452F ONVOY, LLC - ND 638   2021-07-08   
701-299 3   452F ONVOY, LLC - ND 638   2021-07-08   
701-299 4   452F ONVOY, LLC - ND 638   2021-07-08   
701-299 5   073H TELNYX LLC 638   2023-02-25   
701-299 6   073H TELNYX LLC 638   2023-02-25   
701-299 7   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2024-07-11   
701-299 8   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2022-10-27   
701-299 9   939H COMMIO, LLC 638   2021-02-01   
701-319 A BSMRNDBCXKX  506J TWILIO INTERNATIONAL, INC. 638      
701-319 0   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638      
701-319 1   452F ONVOY, LLC - ND 638   2023-08-20   
701-319 2   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2018-02-02   
701-319 3   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2021-08-31   
701-319 4   506J TWILIO INTERNATIONAL, INC. 638   2022-07-13   
701-319 5   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2019-07-20   
701-319 6   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2020-08-13   
701-319 7   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2022-07-28   
701-319 8   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638      
701-319 9   6568 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 638   2016-07-15   
701-323 A BSMRNDBCDS0  9631 QWEST CORPORATION 638      
701-328 A BSMRNDBCDS0  9631 QWEST CORPORATION 638      
701-333 A BSMRNDBCSMD  452F ONVOY, LLC - ND 638      
701-333 0   9631 QWEST CORPORATION 638      
701-333 1   9631 QWEST CORPORATION 638      
701-333 2   9631 QWEST CORPORATION 638      
701-333 3   9631 QWEST CORPORATION 638      
701-333 4   9631 QWEST CORPORATION 638      
701-333 5   9631 QWEST CORPORATION 638      
701-333 6   9631 QWEST CORPORATION 638      
701-333 7   452F ONVOY, LLC - ND 638   2021-06-13   
701-333 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638   2006-10-30   
701-333 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638   2006-10-30   
701-354 A BSMRNDBCVMD  772G TELEPORT COMMUNICATIONS AMERICA - ND - LLC 638      
701-354 0   452F ONVOY, LLC - ND 638   2012-12-16   
701-354 1   452F ONVOY, LLC - ND 638   2012-12-16   
701-354 2   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2013-04-13   
701-354 3   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2014-12-25   
701-354 4   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2014-05-04   
701-354 5   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2014-12-25   
701-354 6   772G TELEPORT COMMUNICATIONS AMERICA - ND - LLC 638   2012-06-12   
701-354 7   452F ONVOY, LLC - ND 638   2013-03-19   
701-354 8   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2014-12-25   
701-354 9   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2014-10-24   
701-355 A BSMRNDJCQMD  490J DISH WIRELESS, LLC 638      
701-355 0   9631 QWEST CORPORATION 638      
701-355 1   9631 QWEST CORPORATION 638      
701-355 2   9631 QWEST CORPORATION 638      
701-355 3   9631 QWEST CORPORATION 638      
701-355 4   9631 QWEST CORPORATION 638      
701-355 5   9631 QWEST CORPORATION 638      
701-355 6   8054 LEVEL 3 COMMUNICATIONS, LLC - ND 638   2008-02-01   
701-355 7   9631 QWEST CORPORATION 638      
701-355 8   9631 QWEST CORPORATION 638      
701-355 9   490J DISH WIRELESS, LLC 638   2023-04-30   
701-390 A BSMRNDBCX4X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 638      

1 2 3 4 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.