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: BLTMMDCH42Z

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-225 5 Annapolis MD 876D ONVOY, LLC - MD 238   2016-08-05   
667-229 0 Aberdeen MD 876D ONVOY, LLC - MD 236   2016-05-13   
667-229 2 Aberdeen MD 876D ONVOY, LLC - MD 236   2016-05-13   
667-229 3 Aberdeen MD 876D ONVOY, LLC - MD 236   2016-05-13   
667-229 4 Aberdeen MD 876D ONVOY, LLC - MD 236   2016-05-13   
667-231 2 Aberdeen MD 876D ONVOY, LLC - MD 236   2014-10-03   
667-231 3 Aberdeen MD 876D ONVOY, LLC - MD 236   2014-10-03   
667-232 7 Glen Burnie MD 876D ONVOY, LLC - MD 238   2022-10-16   
667-236 8 Perryville MD 876D ONVOY, LLC - MD 238   2019-02-19   
667-236 9 Perryville MD 876D ONVOY, LLC - MD 238   2019-02-19   
667-239 1 Baltimore MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-239 2 Baltimore MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-239 4 Baltimore MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-239 5 Baltimore MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-239 6 Baltimore MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-239 7 Baltimore MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-239 8 Baltimore MD 876D ONVOY, LLC - MD 238   2014-10-06   
667-239 9 Baltimore MD 876D ONVOY, LLC - MD 238   2014-10-06   
667-240 8 Columbia MD 876D ONVOY, LLC - MD 238   2018-05-27   
667-256 8 Aberdeen MD 876D ONVOY, LLC - MD 236   2019-02-19   
667-256 9 Aberdeen MD 876D ONVOY, LLC - MD 236   2019-02-19   
667-257 5 Columbia MD 876D ONVOY, LLC - MD 238   2022-10-16   
667-260 A Baltimore MD 876D ONVOY, LLC - MD 238      
667-260 6 Baltimore MD 876D ONVOY, LLC - MD 238   2016-02-12   
667-261 6 Columbia MD 876D ONVOY, LLC - MD 238   2021-01-11   
667-261 7 Columbia MD 876D ONVOY, LLC - MD 238   2021-01-11   
667-262 6 Baltimore MD 876D ONVOY, LLC - MD 238   2019-11-17   
667-262 7 Baltimore MD 876D ONVOY, LLC - MD 238   2019-11-17   
667-263 3 Dundalk MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-263 4 Dundalk MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-263 6 Dundalk MD 876D ONVOY, LLC - MD 238   2022-10-16   
667-268 7 Darlington MD 876D ONVOY, LLC - MD 238   2022-12-03   
667-272 0 Westminster MD 876D ONVOY, LLC - MD 238   2021-09-23   
667-275 3 Towson MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-275 4 Towson MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-276 6 Bel Air MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-276 7 Bel Air MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-276 8 Bel Air MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-280 4 Ellicott City MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-280 5 Ellicott City MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-280 6 Ellicott City MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-280 9 Ellicott City MD 876D ONVOY, LLC - MD 238   2021-09-23   
667-283 2 Fork MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-283 3 Fork MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-283 4 Fork MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-290 6 Baltimore MD 876D ONVOY, LLC - MD 238   2020-12-26   
667-290 7 Baltimore MD 876D ONVOY, LLC - MD 238   2020-12-26   
667-290 8 Baltimore MD 876D ONVOY, LLC - MD 238   2021-02-18   
667-290 9 Baltimore MD 876D ONVOY, LLC - MD 238   2021-02-18   
667-295 3 Crofton MD 876D ONVOY, LLC - MD 238   2023-08-10   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.