phone number for comcast customer service.
- Comcast Customer Service. As an existing customer or new one, you can contact Comcast customer service by using the following toll free number from your own phone for any general issues related to your Comcast service. For contacting Comcast customer service, just click on the phone number given below : 1-800-934-6489. or. 1-800-XFINITY Comcast Customer Support Comcast Customer Service 1-877-219-5420 Phone Number Comcast Customer Support Comcast Corporation, earlier known as Comcast Holdings is a global corporation of United States providing telecommunications service, and is the worldâs largest cable television and broadcasting company by revenue. Comcast Customer Support Comcast Customer Service Phone Number | 1-844-869-8468. Comcast Customer Service. Comcast Corporation, earlier known as Comcast Holdings is a global corporation of United States providing telecommunications service, and is the worldâs largest cable television and broadcasting company by revenue.