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 78 79 80 81 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
415-882 0 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-882 1 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-882 2 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-882 3 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-882 4 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-882 5 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-882 6 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2019-01-08   
415-882 7 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-882 8 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-882 9 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-885 A SNFCCA12DS1  9740 PACIFIC BELL 722      
415-885 0 SNFCCA12DS1  9740 PACIFIC BELL 722      
415-885 1 SNFCCA12DS1  9740 PACIFIC BELL 722      
415-885 2 SNFCCA12DS1  9740 PACIFIC BELL 722      
415-885 3 SNFCCA12DS1  9740 PACIFIC BELL 722      
415-885 4 SNFCCA12DS1  9740 PACIFIC BELL 722      
415-885 5 SNFCCA12DS1  9740 PACIFIC BELL 722      
415-885 6 SNFCCA12DS1  9740 PACIFIC BELL 722      
415-885 7 SNFCCA12DS1  9740 PACIFIC BELL 722      
415-885 8 SNFCCA12DS1  9740 PACIFIC BELL 722      
415-885 9 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2010-09-16   
415-894 A SNFCCA21DS1  9740 PACIFIC BELL 722      
415-894 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2008-11-20   
415-894 1 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-894 2 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2008-11-20   
415-894 3 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-894 4 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-894 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2008-11-20   
415-894 6 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-894 7 OKLECAZV1MD  5562 METROPCS, INC. 722   2009-03-13   
415-894 8 SNFCCA21DS1  9740 PACIFIC BELL 722      
415-894 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2008-11-20   
415-896 A SNFCCA21DS0  9740 PACIFIC BELL 722      
415-896 0 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-896 1 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-896 2 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-896 3 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-896 4   394L COMCAST PHONE OF CALIFORNIA, LLC 722   2008-08-14   
415-896 5 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-896 6 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-896 7 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-896 8 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-896 9 SNFCCA21DS0  9740 PACIFIC BELL 722      
415-901 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-902 A OKLECAZV1MD  5562 METROPCS, INC. 722      
415-902 0 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-902 1 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-902 2 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-902 3 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-902 4 OKLECAZV1MD  5562 METROPCS, INC. 722      

<< 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 78 79 80 81 >>

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.