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.

Switch: SLBRMDSBXVX

<< 1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-238 5 Preston MD 876D ONVOY, LLC - MD 242   2023-02-12   
667-238 8 Preston MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-238 9 Preston MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-241 4 Ridgely MD 876D ONVOY, LLC - MD 242   2021-03-05   
667-241 8 Ridgely MD 876D ONVOY, LLC - MD 242   2019-03-10   
667-241 9 Ridgely MD 876D ONVOY, LLC - MD 242   2019-03-10   
667-242 8 Rock Hall MD 876D ONVOY, LLC - MD 242   2019-02-26   
667-242 9 Rock Hall MD 876D ONVOY, LLC - MD 242   2019-02-26   
667-243 2 Oxford MD 876D ONVOY, LLC - MD 242   2018-09-13   
667-243 8 Oxford MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-243 9 Oxford MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-244 3 Still Pond MD 876D ONVOY, LLC - MD 242   2018-09-13   
667-244 8 Still Pond MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-244 9 Still Pond MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-245 8 Cecilton MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-245 9 Cecilton MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-247 8 Chesapeake City MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-247 9 Chesapeake City MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-248 8 Denton MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-248 9 Denton MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-249 3 Galena MD 876D ONVOY, LLC - MD 242   2021-04-29   
667-249 7 Galena MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-249 9 Galena MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-253 2 Salisbury MD 876D ONVOY, LLC - MD 242   2017-12-18   
667-253 3 Salisbury MD 876D ONVOY, LLC - MD 242   2017-12-18   
667-254 0 Chestertown MD 876D ONVOY, LLC - MD 242   2024-05-23   
667-254 8 Chestertown MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-254 9 Chestertown MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-255 A Hillsboro MD 876D ONVOY, LLC - MD 242      
667-255 0 Hillsboro MD 876D ONVOY, LLC - MD 242   2018-10-13   
667-255 1 Hillsboro MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-255 2 Hillsboro MD 876D ONVOY, LLC - MD 242   2019-03-04   
667-255 8 Hillsboro MD 876D ONVOY, LLC - MD 242   2021-04-29   
667-264 1 Delmar MD 876D ONVOY, LLC - MD 242   2021-04-02   
667-265 2 Vienna MD 876D ONVOY, LLC - MD 242   2020-10-17   
667-265 4 Vienna MD 876D ONVOY, LLC - MD 242   2020-04-30   
667-265 5 Vienna MD 876D ONVOY, LLC - MD 242   2020-04-30   
667-265 6 Vienna MD 876D ONVOY, LLC - MD 242   2021-03-05   
667-265 7 Vienna MD 876D ONVOY, LLC - MD 242   2023-06-17   
667-279 0 Bishopville MD 876D ONVOY, LLC - MD 242   2020-06-11   
667-279 1 Bishopville MD 876D ONVOY, LLC - MD 242   2020-06-11   
667-279 2 Bishopville MD 876D ONVOY, LLC - MD 242   2020-05-09   
667-279 3 Bishopville MD 876D ONVOY, LLC - MD 242   2020-05-09   
667-281 3 Salisbury MD 876D ONVOY, LLC - MD 242   2023-08-10   
667-281 4 Salisbury MD 876D ONVOY, LLC - MD 242   2023-08-10   
667-282 A Tilghman MD 876D ONVOY, LLC - MD 242      
667-282 1 Tilghman MD 876D ONVOY, LLC - MD 242   2020-07-25   
667-282 2 Tilghman MD 876D ONVOY, LLC - MD 242   2020-07-25   
667-282 3 Tilghman MD 876D ONVOY, LLC - MD 242   2021-05-21   
667-282 8 Tilghman MD 876D ONVOY, LLC - MD 242   2021-04-29   

<< 1 2 3 4 5 6 7 8 9 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.