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.

Severn, MD

<< 1 2 3 4

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
667-356 1 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-07-13   
667-356 2 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-07-13   
667-356 3 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-23   
667-356 4 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
667-356 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
667-356 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-25   
667-356 7 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-22   
667-356 8 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-10-17   
667-356 9 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-10-17   
667-388 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-388 0 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-04-23   
667-388 1 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-04-23   
667-388 2 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-04-23   
667-388 3 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-04-23   
667-388 4 BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238   2022-04-04   
667-388 5 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-08-25   
667-388 6 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-01-30   
667-388 7 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-08-25   
667-388 8 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-01-30   
667-388 9 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-01-29   
667-410 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-410 1 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-410 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-410 3 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-410 4 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-410 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-410 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-410 7 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-410 8 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-09-30   
667-410 9 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-09-30   

<< 1 2 3 4

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.