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: 707 [Rate centres in NPA 707] [Dial plan for NPA 707]

NXX: 521

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-521 A Santa Rosa CA SNRSCA01DS1  9740 PACIFIC BELL 722      
707-521 0 Santa Rosa CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
707-521 1 Santa Rosa CA SNRSCA01DS1  9740 PACIFIC BELL 722      
707-521 2 Santa Rosa CA SNRSCA01DS1  9740 PACIFIC BELL 722      
707-521 3 Santa Rosa CA SNRSCA01DS1  9740 PACIFIC BELL 722      
707-521 4 Santa Rosa CA SNRSCA01DS1  9740 PACIFIC BELL 722      
707-521 5 Santa Rosa CA SNRSCA01DS1  9740 PACIFIC BELL 722      
707-521 6 Santa Rosa CA SNRSCA01DS1  9740 PACIFIC BELL 722      
707-521 7 Santa Rosa CA SNRSCA01DS1  9740 PACIFIC BELL 722      
707-521 8 Santa Rosa CA SNRSCA01DS1  9740 PACIFIC BELL 722      
707-521 9 Santa Rosa CA SNFCCA01XGX  516C AT&T CORP. 722      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.