Possible BGP hijack

Beginning at 2022-12-19 15:44:32 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS270308 MUNICIPIO DE MACAE, BR.

But beginning at 2022-12-19 15:44:32, the same prefix ( was also announced by ASN 203.

This was detected by 46 BGPMon peers.

Start time: 2022-12-19 15:44:32 UTC
Expected prefix:
Expected ASN: 270308 (MUNICIPIO DE MACAE, BR)
Event Details
Detected advertisement:
Detected Origin ASN 203 (CENTURYLINK-LEGACY-LVLT-203, US)
Detected AS Path 61319 29075 6762 3356 203
Detected by number of BGPMon peers: 46

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