There isn't real-time support here on the forums regarding service interruptions, but this may be helpful:
You can check here: https://www.xfinity.com/support/status/
Or from the XFINITY My Account app on your mobile device.
Download the XFINITY My Account app for Apple devices from iTunes
Download the XFINITY My Account app for Android devices from Google Play
Or call 1-800-COMCAST (1-800-266-2278) or 1-800-XFINITY (1-800-934-6489)