Ukrainian carriers are leasing their IPv4 addresses to stay afloat - sometimes after being overrun by Russia Ukrainian telcos and ISPs have leased their IPv4 holdings to stay afloat during the nation’s war with Russia. Network intelligence service provider Kentik advanced that theory last week in an analysis written by its director of internet analysis Doug Madory. The researcher found “several cases in which large amounts of IPv4 …
A lot of women and children fled, a lot of men are fighting or otherwise helping the war effort, some of Ukraine's land area is now behind Russian lines (and presumably now served by Russian ISPs at least for the villages that weren't destroyed) That means fewer customers for Ukraine's ISPs, so they need fewer addresses.
If the war ends and most of the people return eventually they'll need most of those addresses. Not all though, some people won't return and some of the land they lost may not be recovered.
Plus when infrastructure is destroyed by Russian missiles or whatever that may "help" deployment of IPv6 by forcing replacement of outdated equipment that doesn't properly support it. So maybe they never need those IPv4s back if they post war Ukraine uses IPv6 to a greater extent.
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