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.

Bittinger, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
240-594 A   071F BANDWIDTH.COM CLEC, LLC - MD 240   2018-07-13   
240-594 0   071F BANDWIDTH.COM CLEC, LLC - MD 240   2018-07-13   
240-594 1   073H TELNYX LLC 240   2018-07-19   
240-594 2   2593 CORE COMMUNICATIONS, INC. - MD 240   2019-05-02   
240-594 3   318J COMCAST IP PHONE, LLC 240   2020-07-17   
240-594 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2020-02-16   
240-594 5   876D ONVOY, LLC - MD 240   2020-06-04   
240-594 6   2593 CORE COMMUNICATIONS, INC. - MD 240   2019-05-02   
240-594 7   2593 CORE COMMUNICATIONS, INC. - MD 240   2019-05-02   
240-594 8   876D ONVOY, LLC - MD 240   2019-04-04   
240-594 9   876D ONVOY, LLC - MD 240   2019-04-04   
301-245 A BTNRMDBRRS1  9212 VERIZON MARYLAND, INC. 240      
301-245 0   2593 CORE COMMUNICATIONS, INC. - MD 240   2004-03-28   
301-245 1   071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-08-10   
301-245 2   071F BANDWIDTH.COM CLEC, LLC - MD 240   2014-07-12   
301-245 3   071F BANDWIDTH.COM CLEC, LLC - MD 240   2012-01-22   
301-245 4   9212 VERIZON MARYLAND, INC. 240      
301-245 5   876D ONVOY, LLC - MD 240   2016-09-12   
301-245 6   071F BANDWIDTH.COM CLEC, LLC - MD 240   2014-10-19   
301-245 7   071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-02-13   
301-245 8   876D ONVOY, LLC - MD 240   2016-09-12   
301-245 9   7575 CENTURYLINK COMMUNICATIONS LLC 240   2016-11-12   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.