How can I find out who is contacting me

[emibell13]

24614 is all.it shows on these texts how come I am not able to find out who it is

 

[Saga Lout]

If the sender feels the need to mask his or her proper number, it's almost certain that the message is, at best, Spam trying to make you spend money. At worst, it may be trying to hack your device so it's best simly to delete it on receipt.