Let's make a list of phone numbers for this spammer ...

they create new ones all the time, but it's easier to cut and paste numbers into a blocked contact in advance so they're blocked the first time they call. Here are some of mine (unfortunately, I deleted some of them).

2697750010
7032296225
5156087506
(302) 440-8210
(551) 233-0124
8103394390
2316166330
13302308233
(515) 441-7592