Possible BGP hijack

Beginning at 2023-02-24 09:05:10, we detected a possible BGP hijack.

Prefix 4.0.0.0/9, Normally announced by AS3356 LEVEL3, US

Starting at 2023-02-24 09:05:10, a more specific route (4.4.4.0/24) was announced by ASN 25577.

This was detected by 23 BGPMon peers.

Expected
Start time: 2023-02-24 09:05:10 UTC
Expected prefix: 4.0.0.0/9
Expected ASN: 3356 (LEVEL3, US)
Event Details
Detected advertisement: 4.4.4.0/24
Detected Origin ASN 25577 (C4L-AS, GB)
Detected AS Path 35266 25577
Detected by number of BGPMon peers: 23

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