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We have a new look!

A3 is Contra Costa County's innovative approach to provide timely and appropriate mental and behavioral health crisis services to anyone, anywhere, at anytime in the county.

Get free emergency behavioral health support

If you or someone you know is experiencing a behavioral health crisis, call the A3 Miles Hall Crisis Call Center

A3 Miles Hall Crisis Call Center: 844-844-5544

The A3 Miles Hall Crisis Call Center's number has changed. Our previous number, 833-443-2672, will still be in service and routed to the call center until July 1, 2023.

The Call Center operates 8 a.m. - 12:30 a.m. daily.

For support outside these hours:

  • Call 911 in an emergency
  • Adults: Call 988 or Text 'HOPE' to 20121
  • Under 18: 877-441-1089