Who called from 4803007150

This was the latest in a string of solicitations that my company received today from call centers with the same roots: 480-300-6051 / 6043 and 302-6293.  The reps all claimed to be from Dell and wanted to send information to an IT manager.  One said specifically that the employee had downloaded something from their website, so they were following up.  Be advised that downloading anything sounds an alarm indicating a prospect for these telemarketers.

These people call at 7 in the morning, call at night and call 3 -4 times a week

Tried to call the number back and a recording says the magicjack phone does not accept calls. Total SCAM

Same thing, no one there when I answered the phone...

UPDATE:  Have now received a total of 15 calls since last Friday from the same man and woman with accents but from different numbers, wanting to send their "annual report to the IT director in the manufacturing environment."  I told them repeatedly that company policy dictated sending the information via standard mail, not email, nor could they speak with anyone.  I finally advised them both that this was harassment and they would be reported to Security if they phoned again and to remove our number from their records.  They backed down quickly, so we'll see what happens.  The numbers are:
480-257-7028
480-264-0623 (two)
480-300-7150
480-327-6806
480-389-1437
520-265-8472
520-265-8582
520-265-8735
520-265-8739 (three)
520-366-3116 (two)
520-366-8814