Call boxes
Am I the only one who didn't know this? From Google:
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Highway call boxes are roadside emergency phones placed along major routes for stranded drivers. Typically solar-powered and spaced 1 to 2 miles apart, they allow users with dead phones, no cell service, or emergencies to connect directly with roadside assistance, tow companies, or the California Highway Patrol (CHP).
How to Use a Highway Call Box (San Diego Region)
Pull over safely onto the right-hand shoulder.
Open the yellow box located on the side of the road.
Pick up the phone or push the call/emergency button.
Speak with an operator, who will dispatch police, medical help, or towing.
Local San Diego Details
In the San Diego area, the network is managed by the Service Authority for Freeway Emergencies (SAFE) program. Local call boxes are cellular-based and connect you to 24/7 operators.
Who it contacts: CHP, local police, fire/medical, towing, or friends/family.
Funding: The program is funded by a $1 fee on vehicle registrations in the region.
Modern Alternatives
While call boxes are great for emergencies in remote areas with zero cell reception, many counties have reduced their numbers due to the widespread use of mobile phones. If you have a cell phone, you can get similar assistance by dialing 511 and saying "Freeway Assist".
Posted Jun 13, 2026, 5:24 PM UTC