sdge customer number
Support & Contact: San Diego Gas & Electric Phone Number Look Up. What is the 1-800 number for SDG&E? Below is a list of toll free 800 numbers for SDG&E. San Diego Gas & Electric Customer Support: 1-800-411-7343. 1  Thanks for calling SDG&E. Calls maybe monitored or recorded for quality purposes. 2  If youâre calling about a gas leak or electric emergency, press 1, or say emergency. 3  If your power is out, press 2, or say power outage.