Who called from 2560000000

Well it happened again in south east MI! Landline and cell phone.

Got a call at our business -- did not leave a message. Caller ID said:

NAME NOT FOUND 2560000000

I was not aware this could be a valid phone number -- I would say it is probably spoofed intentionally.

call at work from same girl -- said "oops, wrong number".  We are not in Michigan but New England

Just received the same call a few minutes ago. Southeast Michigan.

this number  called mine and my husbands cells at the same time i didn't answer because i dont answer calls i don't recognize however, my husband answered it and they said sorry i have the wrong number.