Claimed to be 'Phoenix Financial'. Other reports claim 'Time Warner Cable'. Callers frequently hang up rudely, refuse to answer questions, refuse to identify self or company, refuse to connect to supervisor, won't talk to ANYONE except the name they ask for, ignore FCC 'Do-Not-Call' registry.
Unrelated comment : Beware unknown interstate callers with recorded greetings claiming to be "Financial Services, please press 1 to be connected with...." Many of these are faked phone numbers that are, in truth, disconnected. Such calls are an attempt at Identity Theft. These callers will cuss at you with complete disregard for FCC regulations.