Phonebook

⚠️ Notice: The release of the new version of this page, originally scheduled for September 1, 2025, has been postponed to allow for additional testing. The new version will be released later in September 2025. The new version remains available for preview at: https://new-phonebook.lbl.gov/
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Emergency Contacts

In an emergency, dial 911 from any lab or mobile phone. more

Berkeley Lab main number

510-486-4000

Berkeley Lab mailing address

Lawrence Berkeley National Laboratory
1 Cyclotron Road Mailstop XXX
Berkeley, CA 94720