Called by this number, given a confirmation code. Didn't say which company

This is one of 4 calls from numbers that left the same 9 sec. messages on my cell phone on the same day, a series of numbers in Spanish. All 4 calls were 5 seconds apart. The other 3 numbers are 786-408-8263, 786-408-8362, 805-250-1351

I got 5 of the same 9 second gibberish messages on my office line, on April 1 (Saturday) spanning after noon and evening. They were from 937-203-4486, 863-286-0344, 786-408-3365, 870-729-1558, 786-408-8263