I received 3 calls from this number, on two days - 1 on 6/15/15 and 2 (1 minute apart), three days later on 6/18/15. The calling pattern - REPEATED CALLS, from an UNKNOWN CALLER, suggests telemarketer or collection agency. In any event, these unwanted calls are a nuisance - being made to my personal cellphone (which IS ON the National "DO-NOT-CALL" List). If they are being dialed as Robocalls, they are illegal under both Federal and State laws, which are even stricter in legal sanctions when made to cellphones. Since I don't answer calls to my cellphone from unknown callers, I cannot provide clues as to the caller's purpose, or whether they are Robocalls. But I do always search the Web for details on those unknown callers' numbers. There is scant info on this caller - SO FAR.