Possible BGP hijack

Beginning at 2021-09-24 09:49:29 UTC, we detected a possible BGP hijack.

Prefix 178.171.0.0/20, is normally announced by AS1239 SPRINTLINK, US.

But beginning at 2021-09-24 09:49:29, the same prefix (178.171.0.0/20) was also announced by ASN 207710.

This was detected by 117 BGPMon peers.

Expected
Start time: 2021-09-24 09:49:29 UTC
Expected prefix: 178.171.0.0/20
Expected ASN: 1239 (SPRINTLINK, US)
Event Details
Detected advertisement: 178.171.0.0/20
Detected Origin ASN 207710 (WSTELECOM_DE, LV)
Detected AS Path 201971 3257 174 207710
Detected by number of BGPMon peers: 117

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