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.

Santa Cruz, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
831-454 7 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-454 8 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2006-05-01   
831-454 9 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-457 A SNCZCA01DS0  9740 PACIFIC BELL 722      
831-458 A SNCZCA01DS0  9740 PACIFIC BELL 722      
831-459 A SNCZCA01DS0  9740 PACIFIC BELL 722      
831-460 A SNCZCA01DS0  9740 PACIFIC BELL 722      
831-460 0 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-460 1 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-460 2 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-460 3 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-460 5 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2005-11-28   
831-460 6 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2012-10-25   
831-460 7 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-460 8 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-460 9 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-461 A SCVYCA01DS0  9740 PACIFIC BELL 722      
831-461 0 SCVYCA01DS0  9740 PACIFIC BELL 722      
831-461 1 SCVYCA01DS0  9740 PACIFIC BELL 722      
831-461 2 SCVYCA01DS0  9740 PACIFIC BELL 722      
831-461 3 SNFCCAMKX9X  073H TELNYX LLC 722   2020-11-22   
831-461 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2011-07-21   
831-461 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2012-04-12   
831-461 6 SCVYCA01DS0  9740 PACIFIC BELL 722      
831-461 7 SCVYCA01DS0  9740 PACIFIC BELL 722      
831-461 8 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2012-10-25   
831-461 9 SCVYCA01DS0  9740 PACIFIC BELL 722      
831-462 A SNCZCA11DS0  9740 PACIFIC BELL 722      
831-464 A SNCZCA11DS0  9740 PACIFIC BELL 722      
831-465 A SNCZCA11DS0  9740 PACIFIC BELL 722      
831-465 0 SNCZCA11DS0  9740 PACIFIC BELL 722      
831-465 1 SNCZCA11DS0  9740 PACIFIC BELL 722      
831-465 2 SNCZCA11DS0  9740 PACIFIC BELL 722      
831-465 3 SNCZCA11DS0  9740 PACIFIC BELL 722      
831-465 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2012-08-31   
831-465 5 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-04-06   
831-465 6 SNCZCA11DS0  9740 PACIFIC BELL 722      
831-465 7 SNCZCA11DS0  9740 PACIFIC BELL 722      
831-465 8 SNCZCA11DS0  9740 PACIFIC BELL 722      
831-465 9 SNCZCA11DS0  9740 PACIFIC BELL 722      
831-466 A SNCZCA01DS0  9740 PACIFIC BELL 722      
831-466 0 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-466 1 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-466 2 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-466 3 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-466 4 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-466 5 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-466 6 OKLECAZVGT0  5562 METROPCS, INC. 722   2009-07-18   
831-466 7 SNCZCA01DS0  9740 PACIFIC BELL 722      
831-466 8 SNCZCA01DS0  9740 PACIFIC BELL 722      

<< 1 2 3 4 5 6 7 8 9 10 11 12 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.