Matt,
I'll gather a list over the next week or so and I'll send them to you. Then, I'll try to send them as I get them.
You are correct in that these types of spam are rare. But they do expose a weakness in the system and they are more noticeable now that so much else is blocked.
On the other hand, it has to take guts for a spammer to expose something so traceable as a phone number within an obvious spam message. You'd think that fear of prosecution from authorities and/or harassment from vigilantes would be enough of a deterrent.
Thanks,
Rob McEwen