These entries are queried from radb.net using whois, you can try my project getting these.
:AS-PHOENIXNAP as-set: AS-PHOENIXNAP descr: phoenixNAP Global Policy members: AS-PHOENIXNAP-PHX,AS-PHOENIXNAP-ASH members: AS-PHOENIXNAP-NLD,AS-PHOENIXNAP-ATL members: AS-PHOENIXNAP-SRB,AS-PHOENIXNAP-SIN members: AS-PHOENIXNAP-CHI,AS-PHOENIXNAP-SEA members: AS-PHOENIXNAP-FRA,AS-PHOENIXNAP-MAD members: AS-PHOENIXNAP-SYD,AS-PHOENIXNAP-PL members: AS-PHOENIXNAP-MIL,AS-PHOENIXNAP-BRA members: AS-PHOENIXNAP-SOF,AS-CCBILL members: AS-PHOENIXNAP-LA,AS-PHOENIXNAP-AUS tech-c: RAS-LEVEL3 mnt-by: PHOENIXNAP-MNT changed: jonb [at] phoenixnap.com 20230515 source: LEVEL3 last-modified: 2023-05-15T19:34:37Z