These entries are queried from radb.net using whois, you can try my project getting these.
:AS209499 % No entries found for the selected source(s).
AS-GOOGLE [IP]
AS-TWITTER [IP]
AS-FACEBOOK [IP]
AS-AMAZON [IP]
AS-YAHOO [IP]
AS-CLOUDFLARE [IP]
AS-WIKIMEDIA [IP]
AS-HURRICANE [IP]
AS-MICROSOFT [IP]
AS-APPLE [IP]
AS-LINODE [IP]
AS-DIGITALOCEAN [IP]
AS-AOL [IP]
AS-CN [IP]
AS-CNC [IP]
AS-EBAY [IP]
AS-CISCO [IP]
AS-BBC [IP]
AS-ROOT [IP]
AS-ICI [IP]
AS-YANDEX [IP]
AS-RUSSIA [IP]
AS-KDD [IP]
AS-CMNET [IP]
AS-AKAMAI [IP]
AS-SINGTEL [IP]
AS-TW [IP]
AS-CUSTOMERS [IP]
AS-VODAFONE [IP]
AS-DROPBOX [IP]
AS-LINKEDIN [IP]
AS-DAILYMOTION [IP]
AS-BLIX [IP]
AS-INCAPSULA [IP]
AS-TUMBLR [IP]
AS-TELEGRAM [IP]
AS-RUSNET
AS262428
AS43051
AS-ROSINTEL
AS62304
AS40244
AS135607
AS263737
AS36791
AS201133
AS137940
AS197893
AS269453
AS39928
AS10120
AS133736
AS38220
AS209445
AS267009
AS268145
AS7991