Need help with verifications and re-verifications phone numbers fb

Hello everyone,
So I have almost polished up all my techniques to market with many accounts on FB, however one small annoying factor holds me up from being some what stress free.
I need a solution where when I use a virtual phone number to verify accounts, to be able to RE-verify when facebook asks again. They will do a security check by sending a new code to the phone number I used, the problem is that phone number goes unassigned just after 5-6 days of obtaining it. (textnow dotkom) SO, I need a solution where I can keep the numbers active for at least one or two months...

I post to many groups and often get this checkpoint after maybe 2 weeks of posting and after verifying once with a phone number... Any suggestions would be appreciated.

gracias!
BTW NEED USA PHONE NUMBERS ONLY PLEASE

I can give You Real Sim card verification but sorry, NON US. But they works just fine. Skype: pappunsu

You can try google - there exist services, who sell phone numbers, but it cost 5-7$ per month/ one number. Also, in non-us countries sim-cards sells without contract, in ukraine for example you can buy one sim for ~2$. Ask me, in pm for details, if u need it.

Smsogram sells USA numbers for $4.5 paid once and they're forever yours

Try "text plus" on playstore,for each account you can get a free US or CA number and they only take it back when you don't use your number for 5 days.

Google Voice still works! Also Burnerapp works too. Go try.