Possible BGP hijack

Beginning at 2023-01-12 17:27:38, we detected a possible BGP hijack.

Prefix 187.116.0.0/15, Normally announced by AS26599 TELEFONICA BRASIL S.A, BR

Starting at 2023-01-12 17:27:38, a more specific route (187.117.230.0/23) was announced by ASN 8151.

This was detected by 11 BGPMon peers.

Expected
Start time: 2023-01-12 17:27:38 UTC
Expected prefix: 187.116.0.0/15
Expected ASN: 26599 (TELEFONICA BRASIL S.A, BR)
Event Details
Detected advertisement: 187.117.230.0/23
Detected Origin ASN 8151 (Uninet S.A. de C.V., MX)
Detected AS Path 263287 263396 7738 52320 32098 262914 262914 262914 262914 262914 262914 262914 262914 262914 262914 262914 8151
Detected by number of BGPMon peers: 11

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