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Comcast Headquarters Comcast Center 1701 JFK Blvd. Philadelphia, PA 19103. 1  Phone Number: The contact phone number for Comcast headquarters is 1-215-286-1700. 2  Fax Number: All fax communication with the corporate office should be sent to 1-215-981-7790.
Comcast's 866-316-1619 Technical Support Number This Comcast phone number is ranked #9 out of 11 because 549,696 Comcast customers tried our tools and information and gave us feedback after they called. The reason customers call 866-316-1619 is to reach the Comcast Technical Support department for problems like Update account information, Cancel service, Technical support, Setup service, Account access.