Ketäon 100::1 ?

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% IPv4 or IPv6 address to origin prefix match
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route6: 100::1/128
origin: AS174
descr: COGENT-174, US
lastupd-frst: 2025-11-07 22:30Z 2a0c:9a40:1009::1@rrc00
lastupd-last: 2025-11-07 22:30Z 2a0c:9a40:1009::1@rrc00
seen-at: rrc00
num-rispeers: 1
source: RISWHOIS