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.

OCN: 071F BANDWIDTH.COM CLEC, LLC - MD

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

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-840 7 Catonsville MD BLTMMDCH45Z  238   2011-07-31   
443-840 8 Catonsville MD BLTMMDCH45Z  238   2011-07-31   
443-840 9 Catonsville MD BLTMMDCH45Z  238   2008-12-11   
443-842 4 Baltimore MD BLTMMDCH45Z  238   2011-05-20   
443-842 5 Baltimore MD BLTMMDCH45Z  238   2011-05-20   
443-842 6 Baltimore MD BLTMMDCH45Z  238   2011-05-20   
443-846 0 Towson MD BLTMMDCH45Z  238   2013-09-13   
443-860 0 Catonsville MD BLTMMDCH45Z  238   2011-08-17   
443-860 2 Catonsville MD BLTMMDCH45Z  238   2011-08-17   
443-860 6 Catonsville MD BLTMMDCH45Z  238   2011-08-17   
443-863 8 Baltimore MD BLTMMDCH45Z  238   2011-01-27   
443-863 9 Baltimore MD BLTMMDCH45Z  238   2011-01-27   
443-873 0 Baltimore MD BLTMMDCH45Z  238   2015-05-14   
443-873 3 Baltimore MD BLTMMDCH45Z  238   2013-04-03   
443-877 5 North East MD BLTMMDCH45Z  238   2015-02-13   
443-877 9 North East MD BLTMMDCH45Z  238   2015-02-13   
443-879 3 Dundalk MD BLTMMDCH45Z  238   2019-03-16   
443-879 6 Dundalk MD BLTMMDCH45Z  238   2018-07-28   
443-879 9 Dundalk MD BLTMMDCH45Z  238   2008-12-11   
443-884 2 Baltimore MD BLTMMDCH45Z  238   2020-07-04   
443-884 3 Baltimore MD BLTMMDCH45Z  238   2020-07-04   
443-884 5 Baltimore MD BLTMMDCH45Z  238   2020-07-04   
443-884 9 Baltimore MD BLTMMDCH45Z  238   2020-07-04   
443-885 0 Baltimore MD BLTMMDCH45Z  238   2015-05-14   
443-892 A New Windsor MD BLTMMDCH45Z  238      
443-892 0 New Windsor MD BLTMMDCH45Z  238   2011-10-07   
443-892 1 New Windsor MD BLTMMDCH45Z  238   2011-10-10   
443-892 2 New Windsor MD BLTMMDCH45Z  238   2011-10-10   
443-892 3 New Windsor MD BLTMMDCH45Z  238   2011-10-10   
443-892 4 New Windsor MD BLTMMDCH45Z  238   2011-10-10   
443-906 0 Severna Park MD BLTMMDCH45Z  238   2014-02-16   
443-906 1 Severna Park MD BLTMMDCH45Z  238   2014-02-16   
443-906 3 Severna Park MD BLTMMDCH45Z  238   2014-02-16   
443-914 2 Worthington MD BLTMMDCH45Z  238   2014-07-07   
443-914 3 Worthington MD BLTMMDCH45Z  238   2015-07-06   
443-917 1 Columbia MD BLTMMDCH45Z  238   2015-05-14   
443-917 6 Columbia MD BLTMMDCH45Z  238   2015-05-14   
443-918 7 Taneytown MD BLTMMDCH45Z  238   2010-02-25   
443-920 0 Sykesville MD BLTMMDCH45Z  238   2018-07-28   
443-920 4 Sykesville MD BLTMMDCH45Z  238   2018-06-07   
443-920 5 Sykesville MD BLTMMDCH45Z  238   2018-06-07   
443-924 6 Annapolis MD BLTMMDCH45Z  238   2011-07-02   
443-937 3 Union Bridge MD BLTMMDCH45Z  238   2011-01-09   
443-937 5 Union Bridge MD BLTMMDCH45Z  238   2011-04-04   
443-940 8 Pikesville MD BLTMMDCH45Z  238   2020-09-12   
443-945 9 Elkton MD BLTMMDCH45Z  238   2011-07-02   
443-947 5 Perryville MD BLTMMDCH45Z  238   2017-03-30   
443-948 6 Baltimore MD BLTMMDCH45Z  238   2012-12-07   
443-952 3 Westminster MD BLTMMDCH45Z  238   2019-05-31   
443-961 1 Baltimore MD BLTMMDCH45Z  238   2015-05-14   
443-961 2 Baltimore MD BLTMMDCH45Z  238   2015-05-14   
443-961 4 Baltimore MD BLTMMDCH45Z  238   2015-05-14   
443-961 5 Baltimore MD BLTMMDCH45Z  238   2015-05-14   
443-961 6 Baltimore MD BLTMMDCH45Z  238   2015-05-14   
443-961 7 Baltimore MD BLTMMDCH45Z  238   2015-05-14   
443-963 A Baltimore MD BLTMMDCH45Z  238      
443-963 9 Baltimore MD BLTMMDCH45Z  238   2012-07-15   
443-964 1 North Beach MD BLTMMDCH45Z  238   2010-10-17   
443-964 9 North Beach MD BLTMMDCH45Z  238   2010-01-02   
443-966 3 Fallston MD BLTMMDCH45Z  238   2011-01-09   
443-971 A Taneytown MD BLTMMDCH45Z  238      
443-971 1 Taneytown MD BLTMMDCH45Z  238   2011-04-15   
443-973 0 Ellicott City MD BLTMMDCH45Z  238   2024-10-26   
443-973 2 Ellicott City MD BLTMMDCH45Z  238   2011-03-21   
443-973 6 Ellicott City MD BLTMMDCH45Z  238   2011-06-02   
443-981 7 Fallston MD BLTMMDCH45Z  238   2019-03-07   
443-981 8 Fallston MD BLTMMDCH45Z  238   2019-03-07   
443-987 6 Bel Air MD BLTMMDCH45Z  238   2008-12-11   
443-990 A Baltimore MD BLTMMDCH45Z  238      
443-990 0 Baltimore MD BLTMMDCH45Z  238   2011-04-02   
443-990 1 Baltimore MD BLTMMDCH45Z  238   2011-04-02   
667-205 9 Baltimore MD BLTMMDCH45Z  238   2013-01-16   
667-217 1 Baltimore MD BLTMMDCH45Z  238   2015-01-10   
667-217 2 Baltimore MD BLTMMDCH45Z  238   2015-01-10   
667-217 4 Baltimore MD BLTMMDCH45Z  238   2015-01-10   
667-217 5 Baltimore MD BLTMMDCH45Z  238   2015-01-10   
667-217 6 Baltimore MD BLTMMDCH45Z  238   2015-01-10   
667-219 5 Baltimore MD BLTMMDCH45Z  238   2016-08-15   
667-228 6 Aberdeen MD BLTMMDCH45Z  236   2015-11-07   
667-237 7 West River MD BLTMMDCH45Z  238   2020-11-30   
667-237 9 West River MD BLTMMDCH45Z  238   2020-11-30   
667-260 7 Baltimore MD BLTMMDCH45Z  238   2019-08-12   
667-262 0 Baltimore MD BLTMMDCH45Z  238   2019-08-12   
667-262 1 Baltimore MD BLTMMDCH45Z  238   2022-11-08   
667-262 2 Baltimore MD BLTMMDCH45Z  238   2019-08-12   
667-262 9 Baltimore MD BLTMMDCH45Z  238   2020-09-28   
667-263 2 Dundalk MD BLTMMDCH45Z  238   2025-01-04   
667-268 A Darlington MD BLTMMDCH45Z  238      
667-268 0 Darlington MD BLTMMDCH45Z  238   2019-08-16   
667-268 1 Darlington MD BLTMMDCH45Z  238   2021-01-11   
667-268 4 Darlington MD BLTMMDCH45Z  238   2022-01-27   
667-276 4 Bel Air MD BLTMMDCH45Z  238   2021-01-21   
667-276 9 Bel Air MD BLTMMDCH45Z  238   2021-05-08   
667-283 0 Fork MD BLTMMDCH45Z  238   2021-01-08   
667-283 1 Fork MD BLTMMDCH45Z  238   2021-04-09   
667-284 8 Baltimore MD BLTMMDCH45Z  238   2020-09-28   
667-284 9 Baltimore MD BLTMMDCH45Z  238   2020-09-28   
667-290 0 Baltimore MD BLTMMDCH45Z  238   2020-11-01   
667-290 2 Baltimore MD BLTMMDCH45Z  238   2020-11-01   
667-290 3 Baltimore MD BLTMMDCH45Z  238   2020-11-01   

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

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.