Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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San Francisco: Central DA, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
415-200 A   515J IP HORIZON LLC 722      
415-200 0   515J IP HORIZON LLC 722      
415-200 1   506J TWILIO INTERNATIONAL, INC. 722      
415-200 2   506J TWILIO INTERNATIONAL, INC. 722      
415-200 3   506J TWILIO INTERNATIONAL, INC. 722      
415-200 4   515J IP HORIZON LLC 722      
415-200 5   6529 T-MOBILE USA, INC. 722   2003-09-30   
415-200 6   6529 T-MOBILE USA, INC. 722   2003-10-01   
415-200 7   6529 T-MOBILE USA, INC. 722   2003-10-01   
415-200 8   6529 T-MOBILE USA, INC. 722   2003-10-01   
415-200 9   6529 T-MOBILE USA, INC. 722   2003-10-01   
415-201 A SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
415-202 A SNFCCA12DS1  9740 PACIFIC BELL 722      
415-202 0   9740 PACIFIC BELL 722      
415-202 1   9740 PACIFIC BELL 722      
415-202 2   9740 PACIFIC BELL 722      
415-202 3   6529 T-MOBILE USA, INC. 722   2005-08-01   
415-202 4   6529 T-MOBILE USA, INC. 722   2006-06-01   
415-202 5   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-02-14   
415-202 6   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2013-12-29   
415-202 7   9740 PACIFIC BELL 722      
415-202 8   9740 PACIFIC BELL 722      
415-202 9   9740 PACIFIC BELL 722      
415-203 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
415-204 A SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
415-205 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
415-206 A SNFCCA05DS0  9740 PACIFIC BELL 722      
415-207 A SNFCCA21XEZ  6630 USA MOBILITY WIRELESS, INC. 722      
415-208 A SNFCCA21XEZ  6630 USA MOBILITY WIRELESS, INC. 722      
415-210 A SNFCCA21XEZ  6630 USA MOBILITY WIRELESS, INC. 722      
415-212 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
415-212 0   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-12-08   
415-212 1   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-12-08   
415-212 2   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-12-08   
415-212 3   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-12-08   
415-212 4   506J TWILIO INTERNATIONAL, INC. 722   2015-08-05   
415-212 5   506J TWILIO INTERNATIONAL, INC. 722   2015-08-05   
415-212 6   506J TWILIO INTERNATIONAL, INC. 722   2015-08-05   
415-212 7   506J TWILIO INTERNATIONAL, INC. 722   2015-08-05   
415-212 8   981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-12-09   
415-212 9   981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-12-09   
415-214 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
415-214 0   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-12-05   
415-214 1   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-12-05   
415-214 2   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-12-05   
415-214 3   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-12-05   
415-214 4   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-12-05   
415-214 5   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-12-05   
415-214 7   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2015-08-04   
415-214 8   506J TWILIO INTERNATIONAL, INC. 722   2015-08-04   
415-214 9   506J TWILIO INTERNATIONAL, INC. 722   2015-08-04   
415-215 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
415-216 A SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
415-216 0   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
415-216 1   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
415-216 2   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
415-216 3   6529 T-MOBILE USA, INC. 722   2004-07-11   
415-216 4   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
415-216 5   6529 T-MOBILE USA, INC. 722   2003-10-01   
415-216 6   6529 T-MOBILE USA, INC. 722   2004-02-02   
415-216 7   6529 T-MOBILE USA, INC. 722   2004-02-02   
415-216 8   6529 T-MOBILE USA, INC. 722   2004-07-11   
415-216 9   6529 T-MOBILE USA, INC. 722   2004-02-02   
415-217 A SNFCCA01DS1  9740 PACIFIC BELL 722      
415-217 0   9740 PACIFIC BELL 722      
415-217 1   9740 PACIFIC BELL 722      
415-217 2   9740 PACIFIC BELL 722      
415-217 3   9740 PACIFIC BELL 722      
415-217 4   9740 PACIFIC BELL 722      
415-217 5   9740 PACIFIC BELL 722      
415-217 6   9740 PACIFIC BELL 722      
415-217 7   9740 PACIFIC BELL 722      
415-217 8   9740 PACIFIC BELL 722      
415-217 9   6529 T-MOBILE USA, INC. 722   2004-07-11   
415-218 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
415-219 A SNFCCA21XEZ  6630 USA MOBILITY WIRELESS, INC. 722      
415-220 A SNFCCA21XEZ  6630 USA MOBILITY WIRELESS, INC. 722      
415-222 A SNFCCA21DS0  9740 PACIFIC BELL 722      
415-224 A SNFCCA21XEZ  6630 USA MOBILITY WIRELESS, INC. 722      
415-225 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
415-225 0   6529 T-MOBILE USA, INC. 722      
415-225 1   6529 T-MOBILE USA, INC. 722      
415-225 2   6529 T-MOBILE USA, INC. 722      
415-225 3   6529 T-MOBILE USA, INC. 722      
415-225 4   6529 T-MOBILE USA, INC. 722      
415-225 5   6529 T-MOBILE USA, INC. 722      
415-225 6   6529 T-MOBILE USA, INC. 722      
415-225 7   6529 T-MOBILE USA, INC. 722      
415-225 8   6529 T-MOBILE USA, INC. 722      
415-225 9   6529 T-MOBILE USA, INC. 722      
415-227 A SNFCCA21DS0  9740 PACIFIC BELL 722      
415-227 0   9740 PACIFIC BELL 722      
415-227 1   9740 PACIFIC BELL 722      
415-227 2   9740 PACIFIC BELL 722      
415-227 3   9740 PACIFIC BELL 722      
415-227 4   9740 PACIFIC BELL 722      
415-227 5   9740 PACIFIC BELL 722      
415-227 6   9262 UTILITY TELECOM GROUP, LLC - CA 722      
415-227 7   9262 UTILITY TELECOM GROUP, LLC - CA 722      
415-227 8   9740 PACIFIC BELL 722      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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