Possible BGP hijack

Beginning at 2021-03-08 10:50:11, we detected a possible BGP hijack.

Prefix 2620:57:4000::/46, Normally announced by AS62831 UNIREGISTRY, KY

Starting at 2021-03-08 10:50:11, a more specific route (2620:57:4003::/48) was announced by ASN 39122.

This was detected by 2 BGPMon peers.

Expected
Start time: 2021-03-08 10:50:11 UTC
Expected prefix: 2620:57:4000::/46
Expected ASN: 62831 (UNIREGISTRY, KY)
Event Details
Detected advertisement: 2620:57:4003::/48
Detected Origin ASN 39122 (BLACKNIGHT-AS, IE)
Detected AS Path 6881 6939 1299 39122
Detected by number of BGPMon peers: 2

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