I feel like those ones are really only going to hold any extreme value to you as they seem more personal. 121 is a 3 digit, so 20-50m will be it's average. otherwise, 4 digit's hold no value (too many of them)
I had to look it up on a search engine, and it's apparently some type of bitcoin exchange site? It is a word, so that's great. In my opinion, I'd price it at probably 0-5m? You can probably gain more to someone who uses and is familiar with the site.