I got a call from this number last night. My call blocker caught it so they did not have the chance to leave a message. I can not find anything about this number when I research it so Its probably a spoofed number. Curiosity got the best of me so I called it from a blocked number in a conference room where I work. No identifying info when they answer the man on the other end says is "Hello, how may I help you?" But they will not say who they are even if you ask.
This place has called me everyday for the past 2 weeks. Never leave a message, and just like everyone else can't find any info. Today I received a call from another AZ number 623-321-2638. Same issue.