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: 2593 CORE COMMUNICATIONS, INC.- MD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
667-545 2 Warwick MD   242   2019-07-31   
667-545 3 Warwick MD   242   2019-07-31   
667-545 4 Warwick MD   242   2019-07-31   
667-545 5 Warwick MD   242   2018-12-07   
667-627 A Annapolis MD BLTMMD91GT0  238      
667-627 0 Annapolis MD   238   2018-12-09   
667-627 1 Annapolis MD   238   2018-12-09   
667-627 2 Annapolis MD   238   2018-12-09   
667-627 3 Annapolis MD   238   2018-12-09   
667-627 4 Annapolis MD   238   2018-12-09   
667-627 5 Annapolis MD   238   2018-12-09   
667-627 6 Annapolis MD   238   2018-12-09   
667-627 7 Annapolis MD   238   2018-12-09   
667-627 8 Annapolis MD   238   2018-12-09   
667-627 9 Annapolis MD   238   2018-12-09   
667-653 A Brooklyn Park-Linthicum MD BLTMMD91GT0  238      
667-653 0 Brooklyn Park-Linthicum MD   238   2019-02-01   
667-653 2 Brooklyn Park-Linthicum MD   238   2019-02-01   
667-653 3 Brooklyn Park-Linthicum MD   238   2019-02-01   
667-666 7 West River MD   238   2019-05-02   
667-677 2 Baltimore MD   238   2019-04-12   
667-677 3 Baltimore MD   238   2019-04-12   
667-677 4 Baltimore MD   238   2019-04-12   
667-686 A Ellicott City MD BLTMMD91GT0  238      
667-686 0 Ellicott City MD   238   2018-12-06   
667-686 1 Ellicott City MD   238   2018-12-06   
667-686 2 Ellicott City MD   238   2018-12-06   
667-686 3 Ellicott City MD   238   2018-12-06   
667-686 4 Ellicott City MD   238   2018-12-06   
667-686 5 Ellicott City MD   238   2018-12-06   
667-706 0 Elkton MD   238   2019-05-02   
667-722 A Glenwood MD BLTMMD91GT0  238      
667-722 0 Glenwood MD   238   2018-12-06   
667-722 1 Glenwood MD   238   2018-12-06   
667-722 2 Glenwood MD   238   2019-03-29   
667-722 3 Glenwood MD   238   2019-03-29   
667-722 4 Glenwood MD   238   2019-03-29   
667-722 5 Glenwood MD   238   2018-12-06   
667-722 6 Glenwood MD   238   2019-03-29   
667-722 7 Glenwood MD   238   2019-03-29   
667-722 9 Glenwood MD   238   2019-07-30   
667-727 A Sudlersville MD ESTNMDBNGT0  242      
667-727 0 Sudlersville MD   242   2018-12-07   
667-727 1 Sudlersville MD   242   2018-12-07   
667-727 2 Sudlersville MD   242   2018-12-07   
667-727 4 Sudlersville MD   242   2019-03-29   
667-727 5 Sudlersville MD   242   2019-03-29   
667-727 6 Sudlersville MD   242   2019-03-29   
667-727 7 Sudlersville MD   242   2019-03-29   
667-777 5 Severna Park MD   238   2018-10-23   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 >>

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.