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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
240-376 5 Hughesville MD   236   2020-10-17   
240-376 6 Hughesville MD   236   2021-04-02   
240-376 7 Hughesville MD   236   2021-04-02   
240-384 2 Lexington Park-Great Mills MD   236   2020-11-16   
240-384 3 Lexington Park-Great Mills MD   236   2020-11-16   
240-384 4 Lexington Park-Great Mills MD   236   2021-03-04   
240-384 5 Lexington Park-Great Mills MD   236   2021-03-04   
240-384 6 Lexington Park-Great Mills MD   236   2021-03-04   
240-392 6 Washington Zone 5 MD   236   2012-10-07   
240-407 1 Washington Zone 16 MD   236   2016-04-28   
240-407 3 Washington Zone 16 MD   236   2021-04-02   
240-407 8 Washington Zone 16 MD   236   2021-04-02   
240-410 1 Cumberland MD   240   2021-05-21   
240-414 4 Washington Zone 6 MD   236   2020-04-30   
240-414 8 Washington Zone 6 MD   236   2020-06-11   
240-434 0 Leonardtown MD   236   2012-10-06   
240-442 9 Oakland MD   240   2020-06-04   
240-443 A Washington Zone 6 MD VINNVACBDS0  236   2021-01-07   
240-443 2 Washington Zone 6 MD   236   2021-01-07   
240-443 3 Washington Zone 6 MD   236   2021-01-07   
240-443 4 Washington Zone 6 MD   236   2021-01-07   
240-448 1 Waldorf MD   236   2016-08-05   
240-448 4 Waldorf MD   236   2016-08-05   
240-448 6 Waldorf MD   236   2016-03-11   
240-448 7 Waldorf MD   236   2016-03-11   
240-451 A Thurmont MD CMLDMDCMEMD  240      
240-451 8 Thurmont MD   240   2016-10-02   
240-451 9 Thurmont MD   240   2016-10-02   
240-453 4 Washington Zone 10 MD   236   2014-10-27   
240-454 0 Gaithersburg MD   236   2008-12-15   
240-466 9 Mechanicsville MD   236   2015-06-27   
240-470 7 Laurel MD   236   2015-06-27   
240-471 2 Washington Zone 12 MD   236   2021-04-02   
240-471 6 Washington Zone 12 MD   236   2014-10-27   
240-471 7 Washington Zone 12 MD   236   2021-04-02   
240-471 8 Washington Zone 12 MD   236   2021-04-02   
240-474 0 Gaithersburg MD   236   2016-03-04   
240-474 9 Gaithersburg MD   236   2016-03-04   
240-488 3 Oakland MD   240   2016-09-13   
240-488 5 Oakland MD   240   2016-09-13   
240-503 3 Tompkinsville MD   236   2015-06-27   
240-503 4 Tompkinsville MD   236   2016-03-14   
240-503 5 Tompkinsville MD   236   2016-03-14   
240-503 8 Tompkinsville MD   236   2014-10-28   
240-503 9 Tompkinsville MD   236   2014-10-28   
240-512 6 Washington Zone 13 (Baltimore LATA) MD   238   2018-05-31   
240-512 8 Washington Zone 13 (Baltimore LATA) MD   238   2019-02-19   
240-512 9 Washington Zone 13 (Baltimore LATA) MD   238   2019-02-19   
240-526 3 Leonardtown MD   236   2021-03-04   
240-526 7 Leonardtown MD   236   2021-03-04   

<< 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 >>

Last updated: Mon, 24 May 2021 01:28:43 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.