These entries are queried from radb.net using whois, you can try my project getting these.
:AS-XTOM as-set: AS-XTOM descr: xTom tech-c: XNN2-AP admin-c: XNN2-AP mnt-by: MAINT-XTOMGMBH-AP members: AS-XTOM-BACKBONE members: AS-XTOM-CUSTOMERS last-modified: 2021-08-16T16:52:09Z source: APNIC as-set: AS-XTOM descr: xTom AS-SETs remarks: members: AS-XTOM-BACKBONE members: AS-XTOM-CUSTOMERS remarks: remarks: --- AS3204 xTom Estonia remarks: --- AS3214 xTom Europe remarks: --- AS4785 xTom Japan remarks: --- AS6233 xTom Global Anycast remarks: --- AS9312 xTom Hong Kong remarks: --- AS23858 xTom Australia remarks: --- AS35537 xTom Estonia remarks: --- AS36828 xTom Los Angeles remarks: --- AS43992 xTom Netherlands remarks: --- AS62805 xTom Fremont remarks: --- AS328383 xTom Africa remarks: remarks: Please contact sales [at] xtom.com for colocation remarks: IP transit quote from xTom global network. remarks: BGP Sessions always free as well as /48 IPv6! remarks: admin-c: XDN3-RIPE tech-c: XDN3-RIPE mnt-by: MAINT-AS206499 changed: noc [at] m-m-networks.net 20210825 source: ALTDB as-set: AS-XTOM descr: xTom Limited members: AS328383 members: AS3214 members: AS4785 members: AS9312 members: AS23858 members: AS36828 members: AS43992 members: AS61125 members: AS62805 members: AS57695 tech-c: GX1-AFRINIC admin-c: GX1-AFRINIC mnt-by: XL1-MNT changed: *** [at] xtom.com 20181011 source: AFRINIC as-set: AS-XTOM descr: xTom AS-SETs remarks: members: AS-XTOM-BACKBONE members: AS-XTOM-CUSTOMERS remarks: remarks: --- AS3204 xTom Estonia remarks: --- AS3214 xTom Europe remarks: --- AS4785 xTom Japan remarks: --- AS6233 xTom San Jose remarks: --- AS9312 xTom Hong Kong remarks: --- AS8888 xTom Australia & Global Anycast remarks: --- AS328383 xTom Africa remarks: remarks: Please contact sales [at] xtom.com for colocation and IP transit quote from xTom global network. remarks: org: ORG-XG42-RIPE tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-lower: xtom mnt-by: xtom notify: noc [at] xtom.com created: 2018-08-20T14:29:38Z last-modified: 2021-11-03T03:46:13Z 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: **************************** as-set: AS-XTOM descr: MNT-XL-88 as-set AS-XTOM members: AS-XTOM-BACKBONE,AS-XTOM-CUSTOMERS admin-c: NOC32926-ARIN tech-c: NOC32926-ARIN mnt-by: MNT-XL-88 created: 2020-12-01T15:27:00Z last-modified: 2023-08-11T06:46:09Z source: ARIN as-set: AS-XTOM descr: xTom AS-SETs members: AS-XTOM-BACKBONE members: AS-XTOM-CUSTOMERS admin-c: XDN3-RIPE tech-c: XDN3-RIPE notify: noc [at] xtom.com mnt-by: MAINT-AS9312 changed: david [at] xtom.com 20211102 #03:43:55Z source: RADB last-modified: 2023-11-13T16:08:36Z