Possible BGP hijack

Beginning at 2021-06-10 03:03:01 UTC, we detected a possible BGP hijack.

Prefix 217.70.208.0/22, is normally announced by AS29591 Unknown.

But beginning at 2021-06-10 03:03:01, the same prefix (217.70.208.0/22) was also announced by ASN 203.

This was detected by 126 BGPMon peers.

Expected
Start time: 2021-06-10 03:03:01 UTC
Expected prefix: 217.70.208.0/22
Expected ASN: 29591 (Unknown)
Event Details
Detected advertisement: 217.70.208.0/22
Detected Origin ASN 203 (CENTURYLINK-LEGACY-LVLT-203, US)
Detected AS Path 20634 8447 3356 203
Detected by number of BGPMon peers: 126

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