Possible BGP hijack

Beginning at 2020-09-03 15:57:12, we detected a possible BGP hijack.

Prefix 177.25.216.0/21, Normally announced by AS26599 TELEFONICA BRASIL S.A, BR

Starting at 2020-09-03 15:57:12, a more specific route (177.25.218.0/24) was announced by ASN 203.

This was detected by 121 BGPMon peers.

Expected
Start time: 2020-09-03 15:57:12 UTC
Expected prefix: 177.25.216.0/21
Expected ASN: 26599 (TELEFONICA BRASIL S.A, BR)
Event Details
Detected advertisement: 177.25.218.0/24
Detected Origin ASN 203 (CENTURYLINK-LEGACY-LVLT-203, US)
Detected AS Path 16178 3356 203
Detected by number of BGPMon peers: 121

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