Possible BGP hijack

Beginning at 2020-08-18 19:13:40, we detected a possible BGP hijack.

Prefix 192.214.128.0/18, Normally announced by AS22423 ALTIMA-TELECOM, CA

Starting at 2020-08-18 19:13:40, a more specific route (192.214.136.0/21) was announced by ASN 3549.

This was detected by 2 BGPMon peers.

Expected
Start time: 2020-08-18 19:13:40 UTC
Expected prefix: 192.214.128.0/18
Expected ASN: 22423 (ALTIMA-TELECOM, CA)
Event Details
Detected advertisement: 192.214.136.0/21
Detected Origin ASN 3549 (LVLT-3549, US)
Detected AS Path 53131 3549
Detected by number of BGPMon peers: 2

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