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: MLBRCA11DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
650-259 A Millbrae CA 9740 PACIFIC BELL 722      
650-259 0 Millbrae CA 9740 PACIFIC BELL 722      
650-259 1 Millbrae CA 9740 PACIFIC BELL 722      
650-259 2 Millbrae CA 9740 PACIFIC BELL 722      
650-259 3 Millbrae CA 9740 PACIFIC BELL 722      
650-259 5 Millbrae CA 9740 PACIFIC BELL 722      
650-259 6 Millbrae CA 9740 PACIFIC BELL 722      
650-259 7 Millbrae CA 9740 PACIFIC BELL 722      
650-259 8 Millbrae CA 9740 PACIFIC BELL 722      
650-259 9 Millbrae CA 9740 PACIFIC BELL 722      
650-552 A Millbrae CA 9740 PACIFIC BELL 722      
650-552 0 Millbrae CA 9740 PACIFIC BELL 722      
650-552 1 Millbrae CA 9740 PACIFIC BELL 722      
650-552 2 Millbrae CA 9740 PACIFIC BELL 722      
650-552 5 Millbrae CA 9740 PACIFIC BELL 722      
650-552 9 Millbrae CA 9740 PACIFIC BELL 722      
650-652 A Millbrae CA 9740 PACIFIC BELL 722      
650-652 0 Millbrae CA 9740 PACIFIC BELL 722      
650-652 1 Millbrae CA 9740 PACIFIC BELL 722      
650-652 2 Millbrae CA 9740 PACIFIC BELL 722      
650-652 3 Millbrae CA 9740 PACIFIC BELL 722      
650-652 4 Millbrae CA 9740 PACIFIC BELL 722      
650-652 5 Millbrae CA 9740 PACIFIC BELL 722      
650-652 6 Millbrae CA 9740 PACIFIC BELL 722      
650-652 7 Millbrae CA 9740 PACIFIC BELL 722      
650-652 8 Millbrae CA 9740 PACIFIC BELL 722   2010-06-15   
650-652 9 Millbrae CA 9740 PACIFIC BELL 722      
650-692 A Millbrae CA 9740 PACIFIC BELL 722      
650-697 A Millbrae CA 9740 PACIFIC BELL 722      
650-777 A Millbrae CA 9740 PACIFIC BELL 722      
650-777 0 Millbrae CA 9740 PACIFIC BELL 722      
650-777 4 Millbrae CA 9740 PACIFIC BELL 722      
650-777 9 Millbrae CA 9740 PACIFIC BELL 722      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.