Xfinity Mobile and NOW Mobile — California residents (Answered)

***Updated 5/31/2026***

If you think there's an error on your bill or have a question about your service, call Xfinity Mobile customer support at 1-888-936-4968. For help with NOW Mobile, you can use the Xfinity app to manage your services.

Contact

If you aren't happy with Xfinity Mobile or NOW Mobile's response, you can submit a complaint to the California Public Utilities Commission (CPUC) by visiting cpuc.ca.gov/complaints. Billing and service complaints are handled by the CPUC’s Consumer Affairs Branch (CAB). If you prefer not to submit a complaint online, you can reach the CAB at: 

Phone

1-800-649-7570 (8:30 a.m. to 4:30 p.m., Monday through Friday)

Mail

California Public Utilities Commission, Consumer Affairs Branch

505 Van Ness Avenue, Room 2003

San Francisco, CA 94102

If you have issues hearing or speaking, dial 711 to get the California Relay Service. This service gives direct support relaying telephone calls, and is available for their friends, family, and business contacts. If you want to have your calls answered in your mode of communication, dial one of the toll-free language-specific numbers below to be routed to the California Relay Service.

Teletypewriter (TTY)/Voice Carry Over (VCO)/Hearing Carry Over (HCO) to voice toll-free numbers

• English: 1-800-735-2929
• Spanish: 1-800-855-3000

Voice to TTY/VCO/HCO toll-free numbers

• English: 1-800-735-2922
• Spanish: 1-800-855-3000

From or to speech-to-speech toll-free numbers

English and Spanish: 1-800-854-7784

To avoid having service turned off while you wait for the outcome of a complaint to the CPUC, please contact CAB for help. If your case meets the eligibility criteria, CAB will give you instructions on how to mail a check or money order to be impounded pending the results of your case. You must continue to pay your current charges while your complaint is under review to keep your service on.