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 55 56 57 58 59 60 61 62 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
410-826 7 Baltimore MD   238   2016-01-18   
410-826 8 Baltimore MD   238   2016-01-18   
410-826 9 Baltimore MD   238   2016-01-18   
410-834 0 Waterloo (Washington DC LATA) MD   236   2012-10-07   
410-834 8 Waterloo (Washington DC LATA) MD   236   2014-10-24   
410-834 9 Waterloo (Washington DC LATA) MD   236   2014-10-24   
410-835 0 Willards MD   242   2019-03-10   
410-835 4 Willards MD   242   2020-04-30   
410-835 7 Willards MD   242   2017-04-14   
410-835 9 Willards MD   242   2019-03-10   
410-847 2 Towson MD   238   2016-02-29   
410-849 6 Sherwood Forest MD   238   2012-06-15   
410-862 A Waterloo (Washington DC LATA) MD VINNVACBDS0  236      
410-862 2 Waterloo (Washington DC LATA) MD   236   2015-07-12   
410-862 3 Waterloo (Washington DC LATA) MD   236   2016-04-01   
410-862 4 Waterloo (Washington DC LATA) MD   236   2016-04-01   
410-862 8 Waterloo (Washington DC LATA) MD   236   2020-03-30   
410-863 2 Glen Burnie MD   238   2015-06-11   
410-863 3 Glen Burnie MD   238   2015-06-11   
410-873 1 Nanticoke MD   242   2019-03-04   
410-873 7 Nanticoke MD   242   2017-04-14   
410-873 9 Nanticoke MD   242   2019-03-04   
410-881 6 Sherwood Forest MD   238   2016-03-05   
410-881 8 Sherwood Forest MD   238   2020-10-17   
410-883 0 Sharptown MD   242   2019-03-10   
410-883 5 Sharptown MD   242   2020-04-30   
410-883 7 Sharptown MD   242   2020-04-30   
410-883 8 Sharptown MD   242   2017-04-14   
410-883 9 Sharptown MD   242   2019-03-10   
410-885 1 Chesapeake City MD   242   2017-04-13   
410-886 6 Tilghman MD   242   2019-03-10   
410-886 7 Tilghman MD   242   2017-04-14   
410-888 3 Waterloo (Washington DC LATA) MD   236   2020-03-30   
410-888 4 Waterloo (Washington DC LATA) MD   236   2012-04-05   
410-891 6 Cockeysville MD   238   2016-03-31   
410-891 7 Cockeysville MD   238   2024-06-07   
410-896 1 Delmar MD   242   2019-03-04   
410-896 6 Delmar MD   242   2019-03-04   
410-904 6 Waterloo MD   238   2021-05-21   
410-907 3 Woodlawn MD   238   2016-04-08   
410-907 7 Woodlawn MD   238   2016-04-08   
410-914 2 Churchville MD   238   2025-05-03   
410-927 1 Odenton MD   238   2016-03-07   
410-927 3 Odenton MD   238   2016-03-07   
410-934 3 Annapolis MD   238   2012-03-30   
410-936 3 Salisbury MD   242   2020-12-24   
410-936 4 Salisbury MD   242   2020-12-24   
410-936 5 Salisbury MD   242   2020-12-24   
410-936 6 Salisbury MD   242   2020-12-24   
410-936 7 Salisbury MD   242   2020-12-24   

<< 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 55 56 57 58 59 60 61 62 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.