California Highways (www.cahighways.org): Highway Numbering in California: Post Miles
ET, don't count on that highway call box
Lexan Call Box - The Essential Public Safety Call Box | CASE
Riverside County to remove 225 highway call boxes, some are never used – Press Enterprise
Emergency Call Box And Sign: A Sign Informs Motorists Of Telephone Assistance Available On A Desert Highway In California. Stock Photo, Picture And Royalty Free Image. Image 72079849.
Vintage '60s-'70s California Freeway Emergency Call Box | #28279207
Freeway call boxes going the way of the landline
Highway call boxes being removed - usage dwindles
Most of us will never have to use a fwy callbox but don't ignore them: If you ever have to call 911, CHP or AAA those numbers will tell them exactly where
The Disappearing Freeway Call Box | L.A.'s Forgotten Treasures
Freeway call boxes are going way of the cassette tape – Orange County Register
Highway emergency call boxes.
Freeway Callbox - All
Call Boxes Being Removed from County Freeways – OsideNews
File:Freeway callbox.jpg - Wikipedia
Column: San Diego's highway call boxes fade, but the tax for them stays - The San Diego Union-Tribune
Highway call boxes being removed - usage dwindles
Call box - Wikipedia
Freeway call boxes are going way of the cassette tape – Orange County Register
CallBoxProgram
Freeway call boxes going the way of landline telephones | cbs8.com
Call boxes coming out in Sonoma County | Road Warrior
Facts and Figures About the Ventura County Call Box Program — Conejo Valley Guide | Conejo Valley Events
Inside A Highway Call Box : r/mildlyinteresting
