What the....?

i just got several alerts from zone alarm that Comcast Cable tried to get into my computer by port 80.

Why were they trying to get in?

i looked to see what the name was and i got this----

OrgAbuseHandle: NAPO-ARIN
OrgAbuseName: Network Abuse and Policy Observance
OrgAbusePhone:
OrgAbuseEmail: abuse@comcast.net

OrgTechHandle: IC161-ARIN
OrgTechName: Comcast Cable Communications, Inc.
OrgTechPhone:
OrgTechEmail: cips-ip-registration@cable.comcast.com

there was more to it but i just put in the important stuff.

what does this all mean:puzzle: