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
301-685 7 Damascus MD   236   2016-03-11   
301-686 5 Washington Zone 6 MD   236   2016-04-28   
301-691 2 Poolesville MD   236   2015-10-09   
301-691 3 Poolesville MD   236   2012-10-07   
301-691 4 Poolesville MD   236   2015-06-27   
301-701 2 Washington Zone 13 MD   236   2020-12-03   
301-701 3 Washington Zone 13 MD   236   2020-12-03   
301-701 4 Washington Zone 13 MD   236   2020-12-03   
301-701 5 Washington Zone 13 MD   236   2020-12-03   
301-709 1 Cumberland MD   240   2020-11-07   
301-709 3 Cumberland MD   240   2020-01-05   
301-709 4 Cumberland MD   240   2020-01-05   
301-709 5 Cumberland MD   240   2020-02-10   
301-709 6 Cumberland MD   240   2020-02-10   
301-709 7 Cumberland MD   240   2020-02-10   
301-709 8 Cumberland MD   240   2020-02-10   
301-709 9 Cumberland MD   240   2020-11-07   
301-719 2 Washington Zone 16 MD   236   2020-04-30   
301-719 3 Washington Zone 16 MD   236   2020-04-30   
301-750 1 Friendsville MD   240   2016-09-29   
301-750 9 Friendsville MD   240   2016-09-29   
301-753 3 Washington Zone 6 MD   236   2020-12-03   
301-753 8 Washington Zone 6 MD   236   2020-12-03   
301-756 5 Washington Zone 14 MD   236   2020-04-30   
301-771 0 Washington Zone 2 MD   236   2014-09-01   
301-780 4 Washington Zone 15 MD   236   2017-07-12   
301-786 3 McCoole MD   240   2016-09-12   
301-786 5 McCoole MD   240   2016-09-12   
301-804 2 Ashton MD   236   2014-10-24   
301-804 6 Ashton MD   236   2014-10-24   
301-812 3 Washington Zone 15 (Baltimore LATA) MD   238   2015-09-05   
301-812 4 Washington Zone 15 (Baltimore LATA) MD   238   2012-10-08   
301-822 2 Washington Zone 11 MD   236   2016-02-09   
301-834 1 Brunswick MD   240   2016-09-12   
301-835 1 Frederick MD   240   2020-11-07   
301-835 2 Frederick MD   240   2020-11-07   
301-851 0 Washington Zone 4 MD   236   2014-08-29   
301-851 6 Washington Zone 4 MD   236   2016-02-29   
301-857 4 Clear Spring MD   240   2016-09-12   
301-857 5 Clear Spring MD   240   2016-09-12   
301-859 6 Oakland MD   240   2020-01-06   
301-859 7 Oakland MD   240   2020-01-06   
301-867 5 Washington Zone 14 MD   236   2016-03-14   
301-867 7 Washington Zone 14 MD   236   2016-03-14   
301-888 0 Washington Zone 16 MD   236   2017-07-19   
301-888 3 Washington Zone 16 MD   236   2017-08-13   
301-888 4 Washington Zone 16 MD   236   2017-07-28   
301-888 5 Washington Zone 16 MD   236   2014-10-27   
301-888 6 Washington Zone 16 MD   236   2014-10-27   
301-888 7 Washington Zone 16 MD   236   2017-07-28   

<< 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: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.