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: 876D ONVOY, LLC - 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 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
667-453 5 Prince Frederick MD   238   2024-03-01   
667-453 6 Prince Frederick MD   238   2024-04-05   
667-453 7 Prince Frederick MD   238   2024-04-05   
667-454 1 Bel Air MD   238   2024-02-29   
667-454 3 Bel Air MD   238   2024-02-29   
667-454 4 Bel Air MD   238   2024-02-29   
667-455 0 Edgewood MD   238   2024-02-26   
667-455 1 Edgewood MD   238   2024-02-26   
667-455 2 Edgewood MD   238   2024-02-26   
667-458 0 Annapolis MD BLTMMDCH42Z  238   2016-08-05   
667-460 0 Pikesville MD   238   2024-02-25   
667-460 1 Pikesville MD   238   2024-02-25   
667-460 2 Pikesville MD   238   2024-02-25   
667-462 2 Elkton MD   238   2024-03-01   
667-462 3 Elkton MD   238   2024-04-04   
667-464 3 Baltimore MD BLTMMDCH42Z  238   2022-05-22   
667-464 4 Baltimore MD BLTMMDCH42Z  238   2022-05-22   
667-467 2 Denton MD SLBRMDSBXVX  242   2022-10-16   
667-467 5 Denton MD SLBRMDSBXVX  242   2021-09-25   
667-467 7 Denton MD SLBRMDSBXVX  242   2021-12-20   
667-469 A Bel Air MD   238   2024-04-04   
667-469 0 Bel Air MD   238   2024-04-04   
667-469 1 Bel Air MD   238   2024-04-04   
667-472 A Princess Anne MD   242   2024-05-17   
667-472 0 Princess Anne MD   242   2024-05-17   
667-474 A Armiger-Gibson Island MD   238   2024-05-11   
667-474 0 Armiger-Gibson Island MD   238   2024-05-11   
667-474 1 Armiger-Gibson Island MD   238   2024-05-11   
667-474 2 Armiger-Gibson Island MD   238   2024-05-11   
667-475 A Crofton MD   238   2024-05-12   
667-475 0 Crofton MD   238   2024-05-12   
667-476 A Glenwood MD BLTMMDCH42Z  238      
667-476 2 Glenwood MD BLTMMDCH42Z  238   2021-07-11   
667-476 3 Glenwood MD BLTMMDCH42Z  238   2021-07-11   
667-476 6 Glenwood MD BLTMMDCH42Z  238   2021-05-23   
667-476 7 Glenwood MD BLTMMDCH42Z  238   2021-05-22   
667-476 8 Glenwood MD BLTMMDCH42Z  238   2021-05-23   
667-476 9 Glenwood MD BLTMMDCH42Z  238   2021-05-23   
667-477 A Hampstead MD BLTMMDCH42Z  238      
667-477 5 Hampstead MD BLTMMDCH42Z  238   2021-09-23   
667-477 6 Hampstead MD BLTMMDCH42Z  238   2021-05-22   
667-477 7 Hampstead MD BLTMMDCH42Z  238   2023-08-10   
667-477 8 Hampstead MD BLTMMDCH42Z  238   2023-08-10   
667-478 A Sykesville MD   238   2024-05-12   
667-478 0 Sykesville MD   238   2024-05-12   
667-478 1 Sykesville MD   238   2024-05-12   
667-479 A Ellicott City MD   238   2024-05-12   
667-479 0 Ellicott City MD   238   2024-05-12   
667-479 1 Ellicott City MD   238   2024-05-12   
667-480 A Waterloo (Washington DC LATA) MD   236   2024-05-17   

<< 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 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.