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.

Switch: WASHDCSWXCY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
202-242 A Washington Zone 1 DC 4989 PAETEC COMMUNICATIONS, INC. - DC 236      
202-444 A Washington Zone 1 DC 4989 PAETEC COMMUNICATIONS, INC. - DC 236      
202-448 A Washington Zone 1 DC 4989 PAETEC COMMUNICATIONS, INC. - DC 236      
202-552 A Washington Zone 1 DC 4989 PAETEC COMMUNICATIONS, INC. - DC 236      
202-877 A Washington Zone 1 DC 4989 PAETEC COMMUNICATIONS, INC. - DC 236      
202-994 A Washington Zone 1 DC 4989 PAETEC COMMUNICATIONS, INC. - DC 236      
240-581 A Laurel MD 4989 PAETEC COMMUNICATIONS, INC. - DC 236      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.