How to get a phone number to Authentication new facebook account

I want to register serveral facebook account. They ask me to provide phone number. How to slove this problem?

Nothing you can do except get some sim cards and do verification.

Are these for fake accounts or real personal accounts?
I’m presuming it’s for fake given the context. If it’s just for mobile verification checkpoints you can try a cheaper option like SMSPVA. Otherwise if you want more reliable quality you can pay for a real SIM service like SpeedyVerify from @kraadnc

Thank you! I will try the getsmscode