The older and shittier the ISP the more blocks of IPV4 addresses they have. They have blocks from when they were given out willy nilly.
New ISPs, the ones that compete and bring the prices down have to buy addresses and that costs money and is a cost bigger and older ISPs do not have.
This is a case for regulation - either mandating a move to V6 or mandating the release of stockpiled v4 addresses. ISPs will not do that on their own, the addresses can currently be sold for lots of money.
The US and other western countries don't really feel the pressure of IPv4 scarcity yet. ISPs in other countries typically uses CGNAT or IPv6. Some even give you a routable IPv4 but may randomly replaced it with an ip behind their CGNAT when the lease is expired, giving you false sense of hope.
IPv4 address depletion isn't really the ISP's fault. It's a shitty solution to a shitty situation, to be sure, but it's either that or employing rationing strategies to stretch the remaining supply of IPv4 addresses.
thanks for using Leebra!
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What ISP do you have and what country are you in? I have Comcast in the US and do not have this issue even though they are a big and shitty ISP (I even use their modem, but I do have my own router which I HIGHLY suggest).
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