There are no direct costs there. I pay for the bandwidth. The ISP announces the /24 using their BGP ASN. There are also cloud providers, like Vultr, that will

There are no direct costs there. I pay for the bandwidth. The ISP announces the /24 using their BGP ASN. There are also cloud providers, like Vultr, that will allow you to do BGP with them. You could then get a network block routed to a VPS, then tunnel it out or whatever.