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.

San Francisco: Central DA, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
415-489 4 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 5 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 6 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 7 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2004-11-24   
415-489 9 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-490 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-490 0 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-490 1 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-490 2 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-490 3 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-490 4 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-490 5 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-490 6 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2008-02-11   
415-490 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2005-03-01   
415-490 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2008-02-11   
415-490 9 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-495 A SNFCCA21DS0  9740 PACIFIC BELL 722      
415-495 0 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-495 1 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-495 2 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-495 3 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-495 4 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-495 5 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-495 6 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-495 7 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-495 8 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-495 9 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2020-05-12   
415-498 A SNFCCA21DS0  9740 PACIFIC BELL 722      
415-498 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   
415-498 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-01-25   
415-498 2 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-498 3 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-498 4 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-498 5 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-498 6 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-498 7 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-498 8 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-498 9 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-500 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-500 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2010-11-11   
415-500 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2010-11-12   
415-500 2 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2010-12-20   
415-500 3 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2010-12-20   
415-500 4 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2010-12-20   
415-500 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2010-11-12   
415-500 6   515J IP HORIZON LLC 722   2010-12-16   
415-500 7 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2010-12-20   
415-500 8 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2010-12-20   
415-500 9 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2010-12-20   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 >>

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.