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
443-665 A Nanticoke MD SLBRMD90DS0  242      
443-665 3 Nanticoke MD   242   2018-06-17   
443-665 5 Nanticoke MD   242   2018-06-17   
443-665 6 Nanticoke MD SLBRMD90DS0  242   2019-05-02   
443-665 7 Nanticoke MD   242   2018-06-17   
443-666 5 Chestertown MD SLBRMD90DS0  242   2019-05-02   
443-671 0 New Windsor MD BLTMMD91DS1  238   2004-03-29   
443-672 0 Parkton MD BLTMMD91DS1  238   2004-04-02   
443-672 3 Parkton MD BLTMMD91GT0  238   2019-03-29   
443-674 4 North East MD   238   2018-06-16   
443-674 5 North East MD BLTMMD91DS1  238   2004-04-02   
443-675 3 Randallstown MD   238   2018-10-23   
443-675 4 Randallstown MD   238   2018-10-23   
443-678 4 Parkville MD BLTMMD91GT0  238   2019-05-01   
443-678 5 Parkville MD   238   2018-06-16   
443-678 6 Parkville MD   238   2018-06-16   
443-678 7 Parkville MD   238   2018-06-16   
443-686 4 Fallston MD BLTMMD91GT0  238   2019-07-30   
443-686 6 Fallston MD BLTMMD91GT0  238   2019-06-26   
443-688 4 Severn MD   238   2018-10-23   
443-688 7 Severn MD   238   2018-10-23   
443-689 6 Cockeysville MD   238   2018-10-19   
443-696 2 Dundalk MD   238   2018-10-22   
443-696 6 Dundalk MD   238   2018-10-22   
443-698 5 Odenton MD   238   2018-06-16   
443-698 6 Odenton MD   238   2018-06-16   
443-698 7 Odenton MD   238   2018-06-16   
443-705 2 Cockeysville MD BLTMMD91GT0  238   2019-06-26   
443-705 3 Cockeysville MD BLTMMD91GT0  238   2019-07-15   
443-705 4 Cockeysville MD BLTMMD91GT0  238   2019-07-15   
443-706 0 Crisfield MD   242   2018-06-17   
443-706 4 Crisfield MD   242   2018-06-17   
443-706 5 Crisfield MD   242   2018-06-17   
443-715 5 North East MD   238   2018-06-16   
443-715 9 North East MD   238   2018-06-16   
443-719 3 Jarrettsville MD BLTMMD91GT0  238   2019-07-30   
443-719 4 Jarrettsville MD BLTMMD91GT0  238   2019-07-30   
443-719 5 Jarrettsville MD BLTMMD91GT0  238   2019-05-01   
443-719 6 Jarrettsville MD BLTMMD91GT0  238   2019-05-01   
443-719 7 Jarrettsville MD BLTMMD91GT0  238   2019-05-01   
443-727 0 Bishopville MD   242   2018-06-17   
443-727 5 Bishopville MD   242   2018-06-17   
443-727 6 Bishopville MD   242   2018-06-17   
443-728 0 Berlin MD   242   2018-10-19   
443-728 3 Berlin MD   242   2018-10-19   
443-728 4 Berlin MD   242   2018-10-19   
443-728 5 Berlin MD   242   2018-10-19   
443-728 6 Berlin MD   242   2018-10-19   
443-728 7 Berlin MD   242   2018-10-19   
443-728 8 Berlin MD   242   2018-10-19   

<< 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: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.