747 Area Code – Los Angeles, California: Location, Time Zone & History

Warner Bros. and Walt Disney Studios in Burbank, Universal Studios just across the line in Universal City -- the San Fernando Valley's identity as the entertainment industry's production heartland runs through area code 747, an all-services overlay approved by the California Public Utilities Commission on April 24, 2008 and placed into service May 18, 2009, with its first number block assigned that October 11.

747 overlays area code 818, which itself split from Los Angeles's original 213 on January 7, 1984 -- one of the first major U.S. metros divided into multiple numbering plan areas -- and was further reduced in 1997 when 626 split off the San Gabriel Valley to the east. Rather than force a renumbering of long-established 818 subscribers, the CPUC chose an overlay for the next relief round, a pattern it has increasingly favored over geographic splits.

The shared 818/747 territory covers Burbank, Glendale, Van Nuys, North Hollywood, Studio City, Sherman Oaks, Encino, Woodland Hills, Northridge, and Chatsworth, among other communities. Beyond film and television, the local economy includes legacy aerospace manufacturing tracing back to Lockheed and Rocketdyne, plus logistics along the US-101 and I-5 corridors. 818 itself entered pop culture decades earlier through songs like "Valley Girl," a shorthand for the Valley that predates the 747 overlay.