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The 650-823-XXXX area code prefix is located in San Jose, California including San Mateo, San Bruno and was originally put into service on October 11th 1997. Run a search and find out who's calling you now.

Recently Reported Numbers

Not Available

Recently Unidentified numbers

650 area code numbers that might be spam, scams or that people have reported as unidentified callers

650-823-8638Level 3 Communications
650-823-6380Cf Communications DBA Telekenex
650-823-1250AT&T; Local
650-823-7050Pacific Bell
650-823-6894Pacific Bell
650-823-5612Pacific Bell
650-823-2707Mcimetro Access Transmission Services LLC
650-823-5361Pacific Bell
650-823-9967Cellco Partnership DBA Verizon Wireless
650-823-5830Sprint Spectrum L.p.
650-823-8512New Cingular Wireless PCS
650-823-1586Allegiance Telecom
650-823-3947Pacific Bell
650-823-6252Pacific Bell

Most searched numbers

Cell
All TimeThis Month
650-823-3725First seen 2017-09-13650-823-3407First seen 2017-12-30
650-823-7030First seen 2016-06-09650-823-7030First seen 2014-11-26
650-823-3407First seen 2010-05-19650-823-6944First seen 2010-05-15
650-823-6073First seen 2011-04-25650-823-3407First seen 2010-07-30
650-823-7030First seen 2014-11-29650-823-1614First seen 2011-10-02
Landline
All TimeThis Month
650-823-4446First seen 2019-05-17650-823-4492First seen 2014-05-24
650-823-8764First seen 2015-05-07650-823-9772First seen 2018-05-29
650-823-2064First seen 2010-10-27650-823-4492First seen 2012-10-04
650-823-2182First seen 2015-10-02650-823-4446First seen 2010-04-29
650-823-4247First seen 2019-10-07650-823-8764First seen 2017-11-10

Cities With coverage

CITY LIST
Brisbane
Colma
Fremont
Half Moon Bay
La Honda
Los Altos
Millbrae
Moss Beach
Mountain View
Pacifica
Palo Alto
Pescadero
Redwood City
S San Fran
San Bruno
San Carlos
San Francisco
San Jose
San Mateo
Sunnyvale
Woodside