Possible BGP hijack

Beginning at 2023-08-18 17:36:38 UTC, we detected a possible BGP hijack.

Prefix 61.189.208.0/24, is normally announced by AS140647 CHINATELECOM-GUIZHOU-SHENGJI-5G-NETWORK CHINATELECOM Guizhou province Shengji 5G network, CN.

But beginning at 2023-08-18 17:36:38, the same prefix (61.189.208.0/24) was also announced by ASN 150748.

This was detected by 27 BGPMon peers.

Expected
Start time: 2023-08-18 17:36:38 UTC
Expected prefix: 61.189.208.0/24
Expected ASN: 140647 (CHINATELECOM-GUIZHOU-SHENGJI-5G-NETWORK CHINATELECOM Guizhou province Shengji 5G network, CN)
Event Details
Detected advertisement: 61.189.208.0/24
Detected Origin ASN 150748 ()
Detected AS Path 51944 3257 6453 9498 150748
Detected by number of BGPMon peers: 27

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