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.

Randallstown, MD

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
443-985 4 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-09-21   
443-985 5 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-03-16   
443-985 6 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-985 7 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-10-12   
443-985 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2013-05-20   
443-985 9 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-324 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-324 0 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-02-12   
667-324 1 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-02-12   
667-324 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-19   
667-324 3 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-19   
667-324 4 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-09-10   
667-324 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
667-324 6 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-10-21   
667-324 7 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-18   
667-324 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-18   
667-324 9 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-18   
667-390 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-390 0 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-06-09   
667-390 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-11-17   
667-390 2 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-11-17   
667-390 3 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-11-17   
667-390 4 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-09-22   
667-390 5 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-09-30   
667-390 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-04-25   
667-390 7 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-04-25   
667-390 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-07-22   
667-390 9 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-03-13   

<< 1 2

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.