These entries are queried from radb.net using whois, you can try my project getting these.
:AS-INCAPSULA as-set: AS-INCAPSULA descr: INCAPSULA-AS-SET tech-c: DUMY-RIPE members: AS19551 admin-c: DUMY-RIPE members: AS199391 members: AS16880 members: AS23767 members: AS7642 members: AS17213 members: AS8182 members: AS36607 members: AS204006 members: AS13274 members: AS32081 members: AS16167 members: AS64862 members: AS7926 members: AS39584 members: AS64780 members: AS40657 members: AS394524 members: AS46503 members: AS1399 members: AS136462 members: AS27999 members: AS55878 members: AS12740 members: AS64255 members: AS44386 members: AS131599 members: AS62571 members: AS54661 members: AS132720 members: AS133017 members: AS136492 members: AS51840 members: AS17206 members: AS12211 members: AS206627 members: AS16886 members: AS14495 members: AS30931 members: AS40627 members: AS206625 members: AS9658 members: AS395844 members: AS206646 members: AS22246 members: AS13836 members: AS16711 members: AS13893 members: AS33953 members: AS16115 members: AS1397 members: AS1399 members: AS43247 members: AS10202 members: AS50262 members: AS26324 members: AS13893 members: AS18903 members: AS16711 members: AS15953 members: AS22989 members: AS394619 members: AS19069 members: AS16565 members: AS14799 members: AS21317 members: AS196962 members: AS19069 members: AS14495 members: AS133858 members: AS28597 members: AS7270 members: AS15667 members: AS38580 members: AS28517 members: AS264734 members: AS199373 members: AS55110 members: AS32091 members: AS3762 members: AS63459 members: AS37001 members: AS262446 members: AS28789 members: AS19691 members: AS28953 members: AS3561 members: AS51661 members: AS25473 members: AS2865 members: AS33802 members: AS38539 members: AS54768 members: AS21893 members: AS12200 members: AS54167 members: AS18018 members: AS15504 members: AS205382 members: AS46562 members: AS132899 members: AS203538 members: AS11377 members: AS4768 members: AS18190 members: AS39882 members: AS198849 members: AS30347 members: AS38606 members: AS132826 members: AS46447 members: AS131586 members: AS38825 members: AS199206 members: AS28064 members: AS132046 members: AS7867 members: AS9435 members: AS7341 members: AS13916 members: AS22843 members: AS26211 members: AS30627 members: AS22955 members: AS134672 members: AS134974 members: AS52129 members: AS134449 members: AS22612 members: AS35910 members: AS133158 members: AS55303 members: AS133617 members: AS203316 members: AS263477 members: AS34810 members: AS17686 members: AS197297 members: AS41415 members: AS132263 members: AS131586 mnt-by: UH49793-MNT mnt-by: TB57005-MNT mnt-by: DorC mnt-by: DimaPal mnt-by: ArikL mnt-by: IssaD mnt-by: ChadG mnt-by: OlgaK mnt-by: JerusalemBicha mnt-by: DorCohen mnt-by: JonathanW mnt-by: WallaceL mnt-by: RoniB mnt-by: ortalh mnt-by: INCAP3-RIPE created: 2014-08-18T07:30:40Z last-modified: 2020-11-23T11:09:04Z source: RIPE members: AS10322 members: AS4515 members: AS64456 members: AS46621 members: AS385390 members: AS1398 members: AS1400 members: AS1396 members: AS1402 members: AS23058 members: AS35461 members: AS15830 members: AS6619 members: AS22975 members: AS135596 members: AS12184 members: AS22908 members: AS393759 members: AS39537 members: AS16501 members: AS131618 members: AS46235 members: AS20505 members: AS395467 members: AS13729 members: AS138361 members: AS57060 members: AS46646 members: AS13919 members: AS18674 members: AS10444 members: AS27715 members: AS262518 members: AS263590 members: AS53244 members: AS25611 members: AS54811 members: AS38181 members: AS38182 members: AS9930 members: AS56680 members: AS19905 members: AS52871 members: AS201071 members: AS4775 members: AS65389 members: AS393985 members: AS25658 members: AS24569 members: AS200596 members: AS34950 members: AS49576 members: AS209704 members: AS54818 members: AS36979 members: AS19105 members: AS395327 members: AS136238 members: AS132218 members: AS137056 members: AS133742 members: AS137477 members: AS137981 members: AS263220 members: AS134684 members: AS11810 members: AS4202064704 members: AS4202064724 members: AS11207 members: AS13624 members: AS24082 members: AS4202064708 members: AS4202064702 members: AS4202064714 members: AS4202064709 members: AS2903 members: AS46861 members: AS194297 members: AS4202064701 members: AS4202064703 members: AS4202064706 members: AS4202064715 members: AS65100 members: AS4202064710 members: AS4202064723 members: AS24570 members: AS397474 members: AS137468 members: AS29898 members: AS65010 members: AS4202064707 members: AS9919 members: AS10204 members: AS18802 members: AS30310 members: AS135332 members: AS42770 members: AS16373 members: AS20187 members: AS394749 members: AS133203 members: AS22773 members: AS30229 members: AS57435 members: AS13768 members: AS134546 members: AS6307 members: AS20521 members: AS45008 members: AS45535 members: AS134069 members: AS12678 members: AS49958 members: AS53312 members: AS32787 members: AS52361 members: AS65128 members: AS11188 members: AS18206 members: AS23498 members: AS21548 members: AS62660 members: AS62761 members: AS58480 members: AS18256 members: AS23459 members: AS137831 members: AS58521 members: AS138341 members: AS131619 members: AS137992 members: AS201340 members: AS18361 members: AS135299 members: AS393784 members: AS11016 members: AS64513 members: AS204387 members: AS205855 members: AS207377 members: AS20430 members: AS135462 members: AS19506 members: AS19019 members: AS141205 members: AS19934 members: AS13038 members: AS21209 members: AS139274 members: AS57144 members: AS65122 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-INCAPSULA descr: 3400 Bridge Parkway, Suite 200 Redwood Shores, CA 94065 members: AS19551 remarks: as-set for Incapsula-Imperva tech-c: NT367-AP admin-c: NT367-AP notify: olga.kurtzer [at] imperva.com mnt-by: MAINT-INCAPSULA-AP last-modified: 2018-08-21T20:58:02Z source: APNIC as-set: AS-INCAPSULA descr: 3400 Bridge Parkway, Suite 200 Redwood Shores, CA 94065 members: 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remarks: as-set for Incapsula-Imperva notify: avihai.hezi [at] imperva.com notify: netops [at] incapsula.com mnt-by: MNT-INCAP-5 changed: netops [at] incapsula.com 20201123 source: ARIN