Who called from 5208440205

I'm getting calls from what my Caller ID identifies and lists as: "520-844-0205 - Out of Area."
My answering machine picks up... and they just hang up leaving No message.

10/23/07 older female asks "You speak-a Spanish?"; I hang up...end of call....weird

Called us asking about my children's ages from the "Arizona Education Department." He began asking their names, grades, computer access and if the parents worked. I asked why and then hung up.

i recived a phone call from that number and i answer and he said is so and so there and i told them he needs to speak English and hang up so plz get down with this number and press charges on them thank you

Call showed up on caller ID, I have no answering machine, but during business hours.