U.S. Telepacific Corporation in Burbank, CA
These numbers are located in the city of Burbank part of Los Angeles county. There are a few other subcodes that cover this area as well so take care not to confuse them.
Los Angeles county is situated in California and operates PT (UTC -08:00) time. This number group covers the 91502, 90001, 90011, & 90023 zip codes.