Xfinity (Comcast) Customer Service Phone Number & Contact Information

Looking for the best way to contact Xfinity (Comcast) and reach a live agent? Find the official primary customer service phone number and direct contact details. Get fast help with account inquiries, billing, technical support, and general assistance from a live representative.

Editorial note: DialIndex curates publicly listed customer service contact details and links back to official company websites when available. Always verify time-sensitive details on the official source before calling.

Last verified: 09 Mar 2026

How to Contact Xfinity (Comcast)

Xfinity is the trade name of Comcast Cable Communications, the largest provider of cable internet and television in the United States. It provides a massive suite of residential services including high-speed fiber-optic internet (Xfinity Internet), digital cable TV (X1), mobile phone service (Xfinity Mobile), and home security. As part of the Comcast-NBCUniversal family, it remains a central hub for media consumption and domestic connectivity for millions of American households.

The main listed Xfinity (Comcast) customer service number on this page is +1 855 270 0379. DialIndex also organizes additional support contact details by department so users can choose the most relevant phone line before they call.

This page currently lists 5 support phone numbers across 5 departments and links back to xfinity.com when an official website is available. Always verify urgent or time-sensitive contact details on the official source.

Xfinity (Comcast) Customer Service Phone Numbers

Xfinity (Comcast) has 5 customer service phone numbers across 5 departments for billing, technical support, account help, and general assistance.

Phone LinePhone
Accessibility Support

Support Center

Comcast Business

Customer Service

Customer Care

General Support

Xfinity Mobile

Customer Support

Xfinity Prepaid

Customer Service

Xfinity (Comcast) Customer Service FAQ

You can contact Xfinity customer support by calling 1-800-XFINITY (1-800-934-6489). You can also use the Xfinity Assistant for live chat on their website or app, or visit a local Xfinity store.