Am I getting full use of my service of 150 MB plan?
I currently have the following Modem and router.
Modem: TP Link TC-7610
Router: Belkin N600
The modem is on the list of approved modems for Comcast for your speed tier, however I'm concerned about that router - it's really old (Ethernet is limited to 100 Mbps speed) and might not have the latest security updates. I'd seriously consider replacing it.