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: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 280

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-280 A Oakland: Berkeley DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 0 Oakland: Berkeley DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 1 Oakland: Berkeley DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 2 Oakland: Berkeley DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 3 Oakland: Berkeley DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 4 Oakland: Berkeley DA CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
510-280 5 Oakland: Berkeley DA CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
510-280 6 Oakland: Berkeley DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 7 Oakland: Berkeley DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 8 Oakland: Berkeley DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 9 Oakland: Berkeley DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.