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.

NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 245

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-245 A Bittinger MD BTNRMDBRRS1  9212 VERIZON MARYLAND, INC. 240      
301-245 0 Bittinger MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
301-245 1 Bittinger MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-245 2 Bittinger MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-245 3 Bittinger MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-245 4 Bittinger MD BTNRMDBRRS1  9212 VERIZON MARYLAND, INC. 240      
301-245 5 Bittinger MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
301-245 6 Bittinger MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-245 7 Bittinger MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-245 8 Bittinger MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
301-245 9 Bittinger MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.