What is the gas company phone number? The Gas Company Customer Service Phone Number The Customer Service Phone Number of The Gas Company is: +1 213-244-1200. The Gas Company is the tower in Los Angeles California in which the headquarters of the Southern California Gas Company is situated.What is the name of the gas company in southern california? Jump to navigation Jump to search. The Southern California Gas Company (referred to as SoCalGas) is the primary provider of natural gas to the region of Southern California. Its headquarters are located in the Gas Company Tower in Downtown Los Angeles.Who owns southern california gas company? Southern California Gas Company is a subsidiary of Sempra Energy®. © 1998 - 2018 Southern California Gas Company. SoCalGas® is a registered trademark of Southern California Gas Company. The trademarks used herein are the property of their respective owners.