The call originates from the island nation of Jamaica the current world capital of telephone scammers.  The authorities there are working with the US Government to stop these scammers (see Project JOLT) but it does take time.  Why you even think the Do Not Call list would have any deterrent effect on scammers from Jamaica is beyond my understanding.

Harassing phone calls from JM Kingston 1 876 398 4222...keeps calling these people should be arrested for their intrusion on our phone and the fact we are on the no call list...what a joke.

harrassing phone calls would not stop calling