which countryhas phone code 562
California area codes. The map above is now clickable; click on an area code to go to the page for that area code. The area code in red is Area Code 562; all others in blue are California area codes. Area code 562 is a California telephone area code that was split from area code 310 on January 25, 1997.It is the area code for much of southeastern Los Angeles County, California, and parts of northern Orange County, California.rior to November 2, 1991; this region had been part of area code 213. On that date, most of the western and southern portions of the old 213 region became area code 310. On January 25, 1997, the southern portion of the old 310 territory split again to become the 562 area code.