Possible BGP hijack

Beginning at 2023-03-14 19:06:51, we detected a possible BGP hijack.

Prefix 141.136.56.0/21, Normally announced by AS39838 AS-NACHOAZ, ES

Starting at 2023-03-14 19:06:51, a more specific route (141.136.60.0/24) was announced by ASN 52451.

This was detected by 7 BGPMon peers.

Expected
Start time: 2023-03-14 19:06:51 UTC
Expected prefix: 141.136.56.0/21
Expected ASN: 39838 (AS-NACHOAZ, ES)
Event Details
Detected advertisement: 141.136.60.0/24
Detected Origin ASN 52451 (Superintendencia de Administracion tributaria, GT)
Detected AS Path 263287 263396 7738 23520 52286 52451
Detected by number of BGPMon peers: 7

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