comcast net issues in SFBay area ?

Hi, I believe I'm seeing intermittent issues in comcast's SFBay area network, at or near.. te0-3-0-5-ar01.oakland.ca.sfba.comcast.net (68.87.192.34) te-9-1-ur02.sanmateo.ca.sfba.comcast.net (68.87.192.18) GE-1-3-ur01.sanmateo.ca.sfba.comcast.net (68.86.90.137) ..from two perspective of two different net locations. If you want you can contact me at this address off list. HTH & thanks, =JeffH