Possible BGP hijack

Beginning at 2023-04-06 15:41:06, we detected a possible BGP hijack.

Prefix 172.32.0.0/11, Normally announced by AS21928 T-MOBILE-AS21928, US

Starting at 2023-04-06 15:41:06, a more specific route (172.32.32.0/24) was announced by ASN 263736.

This was detected by 2 BGPMon peers.

Expected
Start time: 2023-04-06 15:41:06 UTC
Expected prefix: 172.32.0.0/11
Expected ASN: 21928 (T-MOBILE-AS21928, US)
Event Details
Detected advertisement: 172.32.32.0/24
Detected Origin ASN 263736 (COOP. DE OBRAS Y DESARROLLO DE MAXIMO PAZ LTDA., AR)
Detected AS Path 28300 14840 3356 263736
Detected by number of BGPMon peers: 2

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