I keep getting blank txt messages from a number, so i tried to ring them and it said the number was unknowed and it wasnt a scam i dont think cos it didnt cost much to call it
u can fake the originators number when sending a txt message...probably just doin that to hide who they really are.. everythin is a scam these days!!
Not sure - probably just tryin to find valid numbers.... If they get a delivery report - then the numbers active so they cans ell it on to spammers?? Maybe - not really sure!