41510
TWO area Codes joined 415 is Frisko(west yay area), the 510 is Oakland and Richmond (east yay area)
we gon REP THA 41510 to tha fullest THA YAY AREA , KILLA KALI WAT IS IT!!
41510
The 510 area code was created in 1991, split off from the 415 area code. Before 1991, Oakland along with the East Bay's area code was 415.
Why... it's common sense for ol' skool heads. 41510 is what we know.