Possible BGP hijack

Beginning at 2022-07-25 16:10:26 UTC, we detected a possible BGP hijack.

Prefix 20.148.0.0/20, is normally announced by AS206 CSC-IGN-AMER, US.

But beginning at 2022-07-25 16:10:26, the same prefix (20.148.0.0/20) was also announced by ASN 263637.

This was detected by 2 BGPMon peers.

Expected
Start time: 2022-07-25 16:10:26 UTC
Expected prefix: 20.148.0.0/20
Expected ASN: 206 (CSC-IGN-AMER, US)
Event Details
Detected advertisement: 20.148.0.0/20
Detected Origin ASN 263637 (DIGITAL TECNOLOGIA & TELECOMUNICACAO LTDA, BR)
Detected AS Path 28300 52873 263637
Detected by number of BGPMon peers: 2

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