Possible BGP hijack

Beginning at 2021-03-26 00:38:56, we detected a possible BGP hijack.

Prefix 138.122.248.0/22, Normally announced by AS262590 NET ON LINE LTDA, BR

Starting at 2021-03-26 00:38:56, a more specific route (138.122.250.0/24) was announced by ASN 52320.

This was detected by 127 BGPMon peers.

Expected
Start time: 2021-03-26 00:38:56 UTC
Expected prefix: 138.122.248.0/22
Expected ASN: 262590 (NET ON LINE LTDA, BR)
Event Details
Detected advertisement: 138.122.250.0/24
Detected Origin ASN 52320 (GlobeNet Cabos Submarinos Colombia, S.A.S., CO)
Detected AS Path 36692 3257 1299 52320
Detected by number of BGPMon peers: 127

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