Possible BGP hijack

Beginning at 2023-02-27 19:17:41, we detected a possible BGP hijack.

Prefix 140.0.0.0/19, Normally announced by AS23700 FASTNET-AS-ID Linknet-Fastnet ASN, ID

Starting at 2023-02-27 19:17:41, a more specific route (140.0.0.0/24) was announced by ASN 10753.

This was detected by 61 BGPMon peers.

Expected
Start time: 2023-02-27 19:17:41 UTC
Expected prefix: 140.0.0.0/19
Expected ASN: 23700 (FASTNET-AS-ID Linknet-Fastnet ASN, ID)
Event Details
Detected advertisement: 140.0.0.0/24
Detected Origin ASN 10753 (LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE, US)
Detected AS Path 7018 3356 3549 10753
Detected by number of BGPMon peers: 61

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