Number has been calling here for weeks. My brand of phone lets me block it after 1 ring, but shows me the number. Regardless of block, they still call pretty much every day. Return call recording anounces that there is "no one available to answer the call".
Has rung me repeatedly for weeks - calls come just before I'm home from work, so no chance to answer and see who it is, and they never leave a message. Shows up on the caller id as "Unknown Name".