Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 568G PEERLESS NETWORK OF MARYLAND, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-914 7 Worthington MD   238   2013-05-04   
443-914 8 Worthington MD   238   2013-05-04   
443-936 1 Elkridge MD   238   2021-12-02   
443-937 7 Union Bridge MD   238   2013-05-04   
443-937 8 Union Bridge MD   238   2013-05-04   
443-941 9 Elkton MD   238   2013-05-04   
443-943 0 Sparrows Point MD   238   2013-05-04   
443-943 1 Sparrows Point MD   238   2013-05-04   
443-947 2 Perryville MD   238   2019-03-08   
443-952 8 Westminster MD   238   2013-05-04   
443-952 9 Westminster MD   238   2013-05-04   
443-964 0 North Beach MD   238   2013-05-04   
443-964 7 North Beach MD   238   2013-05-04   
443-966 8 Fallston MD   238   2013-05-04   
443-966 9 Fallston MD   238   2013-05-04   
443-967 1 North East MD   238   2013-05-04   
443-967 8 North East MD   238   2013-05-04   
443-971 8 Taneytown MD   238   2013-05-04   
443-971 9 Taneytown MD   238   2013-05-04   
443-973 7 Ellicott City MD   238   2013-05-04   
443-973 8 Ellicott City MD   238   2013-05-04   
443-993 0 Elkton MD   238   2013-05-04   
667-206 1 Towson MD   238   2015-10-15   
667-230 A Centreville MD SLBRMD90DS0  242      
667-230 0 Centreville MD   242   2018-04-15   
667-230 4 Centreville MD   242   2021-02-27   
667-230 5 Centreville MD   242   2020-10-28   
667-256 7 Aberdeen MD   236   2020-02-26   
667-261 8 Columbia MD   238   2020-06-21   
667-270 7 Annapolis MD   238   2019-12-28   
667-270 8 Annapolis MD   238   2020-04-15   
667-274 0 Elkridge MD   238   2020-10-28   
667-274 5 Elkridge MD   238   2021-07-12   
667-275 7 Towson MD   238   2019-12-28   
667-281 A Salisbury MD SLBRMD90DS0  242      
667-281 0 Salisbury MD   242   2016-07-16   
667-281 1 Salisbury MD   242   2016-07-16   
667-281 6 Salisbury MD   242   2021-03-24   
667-281 9 Salisbury MD   242   2018-12-26   
667-283 8 Fork MD   238   2021-02-26   
667-288 0 Berlin MD   242   2020-10-30   
667-288 9 Berlin MD   242   2021-02-21   
667-289 2 Aberdeen MD   236   2024-11-20   
667-292 4 Salisbury MD   242   2024-11-20   
667-294 4 Towson MD   238   2021-02-26   
667-295 2 Crofton MD   238   2018-12-07   
667-297 4 Edgewood MD   238   2021-04-29   
667-307 A Crofton MD BLTQMD01DS0  238      
667-307 0 Crofton MD   238   2013-06-08   
667-307 1 Crofton MD   238   2013-06-08   

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

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