These entries are queried from radb.net using whois, you can try my project getting these.
:AS-PDN-STE-SY as-set: AS-PDN-STE-SY descr: STE PDN ASN Members members: AS29386 remarks: External ASN members: AS29256 remarks: Internal ASN members: AS201550 remarks: EXT-PDN-STE-AS (64 bits) tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: STEMNT-1 created: 2012-05-08T19:21:46Z last-modified: 2024-01-28T17:51:37Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: ****************************