This sounds crazy, but I'm analyzing the raw RIS BGP announcement dataset and I spot this announcement:
BGP4MP|1543859911|A|126.96.36.199|51185|188.8.131.52/24|51185 9304 1161216244|INCOMPLETE|184.108.40.206|0|0||NAG||
This announcement is collected by AS 51185. Sometimes I spot the AS-path is 51185 following by a 'trash' ASN also, e.g.,
Is this ASN 1161216244 even possible? If this ASN is possible, can you guess who is doing this practice and why?