Possible BGP hijack

Beginning at 2022-10-07 18:41:25, we detected a possible BGP hijack.

Prefix 128.201.30.0/23, Normally announced by AS266611 POLISERV SERVICOS E COMERCIO LTDA - ME, BR

Starting at 2022-10-07 18:41:25, a more specific route (128.201.31.0/24) was announced by ASN 26661.

This was detected by 72 BGPMon peers.

Expected
Start time: 2022-10-07 18:41:25 UTC
Expected prefix: 128.201.30.0/23
Expected ASN: 266611 (POLISERV SERVICOS E COMERCIO LTDA - ME, BR)
Event Details
Detected advertisement: 128.201.31.0/24
Detected Origin ASN 26661 (JCPS-ASN, US)
Detected AS Path 63956 1299 12956 52873 265019 266142 26661
Detected by number of BGPMon peers: 72

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