Possible BGP hijack

Beginning at 2020-10-21 14:10:10 UTC, we detected a possible BGP hijack.

Prefix 152.89.0.0/22, is normally announced by AS25098 NETCALIBRE, GB.

But beginning at 2020-10-21 14:10:10, the same prefix (152.89.0.0/22) was also announced by ASN 203.

This was detected by 44 BGPMon peers.

Expected
Start time: 2020-10-21 14:10:10 UTC
Expected prefix: 152.89.0.0/22
Expected ASN: 25098 (NETCALIBRE, GB)
Event Details
Detected advertisement: 152.89.0.0/22
Detected Origin ASN 203 (CENTURYLINK-LEGACY-LVLT-203, US)
Detected AS Path 28646 4230 3356 203
Detected by number of BGPMon peers: 44

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