Possible BGP hijack

Beginning at 2020-12-23 01:03:35, we detected a possible BGP hijack.

Prefix 154.48.0.0/12, Normally announced by AS174 COGENT-174, US

Starting at 2020-12-23 01:03:35, a more specific route (154.63.11.0/24) was announced by ASN 34471.

This was detected by 32 BGPMon peers.

Expected
Start time: 2020-12-23 01:03:35 UTC
Expected prefix: 154.48.0.0/12
Expected ASN: 174 (COGENT-174, US)
Event Details
Detected advertisement: 154.63.11.0/24
Detected Origin ASN 34471 (EXCOM-AS, ES)
Detected AS Path 6881 15685 42000 39392 33891 34471
Detected by number of BGPMon peers: 32

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