Possible BGP hijack

Beginning at 2022-12-07 12:01:34, we detected a possible BGP hijack.

Prefix 181.233.188.0/22, Normally announced by AS20473 AS-CHOOPA, US

Starting at 2022-12-07 12:01:34, a more specific route (181.233.190.0/24) was announced by ASN 271557.

This was detected by 4 BGPMon peers.

Expected
Start time: 2022-12-07 12:01:34 UTC
Expected prefix: 181.233.188.0/22
Expected ASN: 20473 (AS-CHOOPA, US)
Event Details
Detected advertisement: 181.233.190.0/24
Detected Origin ASN 271557 ()
Detected AS Path 263287 262868 263966 268485 271557
Detected by number of BGPMon peers: 4

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