Possible BGP hijack

Beginning at 2020-03-21 23:33:07, we detected a possible BGP hijack.

Prefix 55.0.0.0/8, Normally announced by AS721 DNIC-ASBLK-00721-00726, US

Starting at 2020-03-21 23:33:07, a more specific route (55.55.55.0/24) was announced by ASN 16735.

This was detected by 65 BGPMon peers.

Expected
Start time: 2020-03-21 23:33:07 UTC
Expected prefix: 55.0.0.0/8
Expected ASN: 721 (DNIC-ASBLK-00721-00726, US)
Event Details
Detected advertisement: 55.55.55.0/24
Detected Origin ASN 16735 (ALGAR TELECOM S/A, BR)
Detected AS Path 28140 263110 52840 262589 16735
Detected by number of BGPMon peers: 65

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