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.

Hagerstown, MD

<< 1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-745 0   9212 VERIZON MARYLAND, INC. 240      
301-745 1   9212 VERIZON MARYLAND, INC. 240      
301-745 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2016-04-16   
301-745 3   9212 VERIZON MARYLAND, INC. 240      
301-745 4   9212 VERIZON MARYLAND, INC. 240      
301-745 5   9212 VERIZON MARYLAND, INC. 240      
301-745 6   9212 VERIZON MARYLAND, INC. 240      
301-745 7   9212 VERIZON MARYLAND, INC. 240      
301-745 8   9212 VERIZON MARYLAND, INC. 240      
301-745 9   876D ONVOY, LLC - MD 240   2025-05-03   
301-766 A HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-790 A HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-791 A HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-797 A HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-800 A FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-800 0   071F BANDWIDTH.COM CLEC, LLC - MD 240   2010-08-07   
301-800 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-03-10   
301-800 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-03-10   
301-800 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2010-06-13   
301-800 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2010-06-13   
301-800 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-03-10   
301-800 6   5562 METROPCS, INC. 240   2011-03-15   
301-800 7   071F BANDWIDTH.COM CLEC, LLC - MD 240   2011-06-02   
301-800 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2010-10-11   
301-800 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2010-10-11   
301-936 A HGTWMD530MD  073H TELNYX LLC 240      
301-936 0   073H TELNYX LLC 240   2021-07-23   
301-936 1   073H TELNYX LLC 240   2017-07-17   
301-936 2   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-03-29   
301-936 3   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-04-12   
301-936 4   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-04-12   
301-936 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2020-07-13   
301-936 6   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-04-12   
301-936 7   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-04-12   
301-936 8   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-04-12   
301-936 9   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-04-12   
301-988 A CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
301-991 A FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-991 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-991 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-991 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-991 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-991 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-991 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-991 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-991 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-991 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-991 9   5562 METROPCS, INC. 240      
301-992 A FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-992 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      

<< 1 2 3 4 5 6 7 8 9 10 11 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.