My very first Comcast cablemodem gave 10 mbits/sec due to living in the ghetto (no other data subscribers around) and @Home not having figured out how to set a

My very first Comcast cablemodem gave 10 mbits/sec due to living in the ghetto (no other data subscribers around) and @Home not having figured out how to set a rate limit in the docsis config. They never changed my service as long as I was on the system. When I moved to another system, a different company was managing their data service and I had a 3 mbits limit.