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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
410-983 6 Fork MD BLTMMDCH42Z  238   2014-09-27   
410-989 4 Fork MD BLTMMDCH42Z  238   2012-10-07   
410-995 9 Ellicott City MD BLTMMDCH42Z  238   2016-03-27   
443-201 7 Westminster MD BLTMMDCH42Z  238   2012-10-08   
443-205 6 Cambridge MD SLBRMDSBXVX  242   2024-03-02   
443-205 7 Cambridge MD SLBRMDSBXVX  242   2024-04-04   
443-212 3 Sparks-Glencoe MD BLTMMDCH42Z  238   2021-03-04   
443-212 9 Sparks-Glencoe MD BLTMMDCH42Z  238   2021-05-21   
443-214 0 Annapolis MD BLTMMDCH42Z  238   2016-02-22   
443-214 3 Annapolis MD BLTMMDCH42Z  238   2013-08-10   
443-218 9 Worthington MD BLTMMDCH42Z  238   2020-04-30   
443-222 A Worthington MD BLTMMDCH42Z  238      
443-222 0 Worthington MD BLTMMDCH42Z  238   2020-04-30   
443-222 1 Worthington MD BLTMMDCH42Z  238   2020-04-30   
443-222 8 Worthington MD BLTMMDCH42Z  238   2019-02-19   
443-222 9 Worthington MD BLTMMDCH42Z  238   2019-02-19   
443-225 1 Cambridge MD SLBRMDSBXVX  242   2024-05-03   
443-227 4 Port Deposit MD BLTMMDCH42Z  238   2016-03-17   
443-227 5 Port Deposit MD BLTMMDCH42Z  238   2016-03-17   
443-229 5 Severna Park MD   238   2025-02-01   
443-230 2 Odenton MD BLTMMDCH42Z  238   2021-03-04   
443-230 5 Odenton MD BLTMMDCH42Z  238   2016-03-29   
443-232 0 Willards MD SLBRMDSBXVX  242   2020-04-30   
443-232 1 Willards MD SLBRMDSBXVX  242   2020-07-04   
443-232 2 Willards MD SLBRMDSBXVX  242   2020-07-04   
443-232 9 Willards MD SLBRMDSBXVX  242   2020-04-30   
443-233 0 Vienna MD SLBRMDSBXVX  242   2020-08-09   
443-233 1 Vienna MD SLBRMDSBXVX  242   2020-08-09   
443-233 5 Vienna MD SLBRMDSBXVX  242   2020-10-17   
443-234 0 Snow Hill MD SLBRMDSBXVX  242   2019-03-04   
443-234 1 Snow Hill MD SLBRMDSBXVX  242   2021-03-05   
443-234 8 Snow Hill MD SLBRMDSBXVX  242   2017-04-14   
443-234 9 Snow Hill MD SLBRMDSBXVX  242   2019-03-04   
443-238 0 Parkton MD BLTMMDCH42Z  238   2024-03-07   
443-238 1 Parkton MD BLTMMDCH42Z  238   2016-03-21   
443-238 3 Parkton MD BLTMMDCH42Z  238   2016-03-21   
443-241 A Westminster MD BLTMMDCH42Z  238      
443-242 9 Sparrows Point MD BLTMMDCH42Z  238   2023-10-22   
443-244 6 Westminster MD BLTMMDCH42Z  238   2016-03-10   
443-247 0 Union Bridge MD BLTMMDCH42Z  238   2019-02-19   
443-247 2 Union Bridge MD BLTMMDCH42Z  238   2019-02-19   
443-247 4 Union Bridge MD BLTMMDCH42Z  238   2016-03-28   
443-247 5 Union Bridge MD BLTMMDCH42Z  238   2016-03-28   
443-249 2 Stevensville MD SLBRMDSBXVX  242   2017-04-14   
443-249 9 Stevensville MD SLBRMDSBXVX  242   2024-03-07   
443-251 A Catonsville MD BLTMMDCH42Z  238      
443-251 0 Catonsville MD BLTMMDCH42Z  238   2014-09-05   
443-251 3 Catonsville MD BLTMMDCH42Z  238   2014-12-31   
443-251 4 Catonsville MD BLTMMDCH42Z  238   2014-12-31   
443-256 4 North East MD BLTMMDCH42Z  238   2014-09-20   
443-256 5 North East MD BLTMMDCH42Z  238   2014-09-20   
443-258 5 Easton MD SLBRMDSBXVX  242   2024-06-07   
443-264 3 Pikesville MD BLTMMDCH42Z  238   2018-05-31   
443-266 9 Glenwood MD BLTMMDCH42Z  238   2012-10-07   
443-272 4 Randallstown MD BLTMMDCH42Z  238   2012-10-08   
443-273 5 Reisterstown MD BLTMMDCH42Z  238   2012-10-08   
443-274 4 Severn MD BLTMMDCH42Z  238   2012-02-29   
443-278 0 Baltimore MD BLTMMDCH42Z  238   2024-01-06   
443-278 1 Baltimore MD BLTMMDCH42Z  238   2024-01-06   
443-278 2 Baltimore MD BLTMMDCH42Z  238   2024-01-06   
443-282 2 Chestertown MD SLBRMDSBXVX  242   2024-04-12   
443-282 9 Chestertown MD SLBRMDSBXVX  242   2017-04-13   
443-290 3 Parkville MD BLTMMDCH42Z  238   2016-03-29   
443-290 5 Parkville MD BLTMMDCH42Z  238   2012-10-07   
443-291 2 Hampstead MD BLTMMDCH42Z  238   2016-03-21   
443-291 5 Hampstead MD BLTMMDCH42Z  238   2024-03-08   
443-291 8 Hampstead MD BLTMMDCH42Z  238   2016-03-21   
443-292 9 Crofton MD BLTMMDCH42Z  238   2012-06-15   
443-293 5 Westminster MD BLTMMDCH42Z  238   2021-09-23   
443-294 7 West River MD BLTMMDCH42Z  238   2012-10-08   
443-296 0 Waterloo MD BLTMMDCH42Z  238   2024-12-02   
443-296 5 Waterloo MD BLTMMDCH42Z  238   2012-10-08   
443-298 2 Easton MD SLBRMDSBXVX  242   2024-07-15   
443-300 0 Sykesville MD BLTMMDCH42Z  238   2021-07-12   
443-300 1 Sykesville MD BLTMMDCH42Z  238   2021-04-29   
443-300 9 Sykesville MD BLTMMDCH42Z  238   2021-07-12   
443-302 3 Crofton MD BLTMMDCH42Z  238   2021-05-21   
443-302 8 Crofton MD BLTMMDCH42Z  238   2021-05-21   
443-305 5 Armiger-Gibson Island MD BLTMMDCH42Z  238   2021-03-04   
443-312 1 Brooklyn Park-Linthicum MD BLTMMDCH42Z  238   2025-01-06   
443-312 5 Brooklyn Park-Linthicum MD BLTMMDCH42Z  238   2021-09-23   
443-313 6 Fork MD BLTMMDCH42Z  238   2016-04-04   
443-313 7 Fork MD BLTMMDCH42Z  238   2016-04-04   
443-315 2 Catonsville MD BLTMMDCH42Z  238   2013-08-01   
443-316 0 Woodlawn MD BLTMMDCH42Z  238   2024-12-02   
443-316 1 Woodlawn MD BLTMMDCH42Z  238   2024-12-02   
443-316 2 Woodlawn MD BLTMMDCH42Z  238   2023-05-18   
443-317 2 Chase MD BLTMMDCH42Z  238   2012-10-08   
443-320 6 Baltimore MD BLTMMDCH42Z  238   2024-01-06   
443-320 8 Baltimore MD BLTMMDCH42Z  238   2024-01-06   
443-322 3 Towson MD BLTMMDCH42Z  238   2020-06-04   
443-323 0 Sharptown MD SLBRMDSBXVX  242   2020-04-30   
443-323 1 Sharptown MD SLBRMDSBXVX  242   2020-07-04   
443-323 2 Sharptown MD SLBRMDSBXVX  242   2020-07-04   
443-328 0 Sykesville MD BLTMMDCH42Z  238   2021-04-29   
443-329 5 Waterloo (Washington DC LATA) MD VINNVACBDS0  236   2020-06-20   
443-329 9 Waterloo (Washington DC LATA) MD VINNVACBDS0  236   2020-06-20   
443-331 2 Taneytown MD BLTMMDCH42Z  238   2024-03-03   
443-331 4 Taneytown MD BLTMMDCH42Z  238   2016-03-21   
443-331 5 Taneytown MD BLTMMDCH42Z  238   2016-03-21   

<< 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 >>

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.