Contact someone at CERN
If you know the name of the person you wish to speak to at CERN, find their contact details in the CERN phonebook.
Opening hours: Monday - Friday from 8am to 5.45pm, Saturday 8.30am to 5.15pm.
Reception is closed on CERN holidays, which include Easter and Christmas. If you want to visit during official French and Swiss holidays, it's better to phone beforehand to check if CERN is open.
For media requests only:
CERN Press Office
CH-1211 Geneva 23
Journalists who have organized a visit to CERN will be welcomed at reception (building 33). Ask for the press office.
As CERN is on the border between France and Switzerland it has two official addresses, one French and one Swiss.
|For Switzerland||For France|
|Organisation Européenne pour la Recherche Nucléaire
F-01631 CERN Cedex
Want to apply to a job at CERN? See the CERN jobs website for all information about CERN careers and the application process.
For questions or technical problems about services related to CERN such as your CERN account, or internal administrative issues, please contact:
CERN Service Desk, Building 55. Open 7.30am - 6.30pm on work days, Geneva time.
Call them on +41 (0) 22 76 77777 or raise a ticket through the Service Portal.
Problems with the CERN website? Contact the web team through the Service Portal (see above).