Possible BGP hijack

Beginning at 2020-01-23 09:13:33, we detected a possible BGP hijack.

Prefix 185.139.48.0/22, Normally announced by AS12874 FASTWEB, IT

Starting at 2020-01-23 09:13:33, a more specific route (185.139.51.0/24) was announced by ASN 208000.

This was detected by 146 BGPMon peers.

Expected
Start time: 2020-01-23 09:13:33 UTC
Expected prefix: 185.139.48.0/22
Expected ASN: 12874 (FASTWEB, IT)
Event Details
Detected advertisement: 185.139.51.0/24
Detected Origin ASN 208000 (MEGACOM, IT)
Detected AS Path 49673 48858 12389 3257 41160 208000
Detected by number of BGPMon peers: 146

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