I have several low-cost cloud VPS, all claiming that they will not raise the rate, and so far the rates have stayed the same. I don't know how they do it, and I really don't care. All the systems I am using came with 1 static IPv4 address. A couple also came with IPv6 addresses which I have not setup.
One bills me $1/mo, and gives me a 1Gb network interface with unmetered traffic. I have been running more then 5TB/mo through it, for months now, without any complaints.
Best non-oracle deal I grabbed was a 2 core AMD64, 3GB RAM and 25GB SSD VPS for $13.69/year. I am running a remote Debian desktop on it and using it as a VPN server. They said they will never raise the renewal rate, but they did limited it to 1 VPS per-person, and said it was a one time offer.
I recently moved a mobile number Tossable Digits on their $40/year plan, as I did not like tying up a cellphone just for 2FA. They have a similar warnings as NumberBarn, but so far everything is working for 2FA, including a couple banks. This is a number I have had for a long time that started as a landline, that I then transferred to Ultra Paygo for a couple years, and now it is at Tossable Digits.