These entries are queried from radb.net using whois, you can try my project getting these.
:AS21399 route: 59.151.128.0/18 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20070514 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 60.254.128.0/18 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20070514 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 60.254.164.0/22 descr: Akamai-VSNL Route Object origin: AS21399 mnt-by: MAINT-VSNL-IN changed: ip.admin [at] vsnl.co.in 20070226 source: RADB last-modified: 2023-11-13T15:42:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 60.254.188.0/22 descr: Akamai - Route object origin: AS21399 mnt-by: MAINT-VSNL-IN changed: ip.admin [at] vsnl.co.in 20070224 source: RADB last-modified: 2023-11-13T15:42:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.208.195.0/24 descr: Akamai 8CC Route origin: AS21399 mnt-by: AKAMAI-MNT changed: jpayne [at] akamai.com 20030925 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.210.173.0/24 descr: Akamai route origin: AS21399 mnt-by: AKAMAI-MNT changed: lou.gilman [at] level3.com 20030115 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.124.214.0/24 descr: Akamai Cambridge ESSL origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20040701 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.157.40.192/26 descr: Akamai route origin: AS21399 mnt-by: AKAMAI-MNT changed: steve.cordova [at] level3.com 20030208 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.27.160.0/20 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAM1-ALTDB-MNT changed: ablock [at] akamai.com 20081016 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.27.160.0/20 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20090619 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.192.0.0/16 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20081017 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.246.0.0/15 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20070514 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.246.0.0/16 descr: Akamai Aggregate origin: AS21399 mnt-by: AKAMAI-MNT changed: jpayne [at] akamai.com 20061121 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.246.0.0/17 descr: route for Akamai 8cc origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20050715 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.246.8.0/21 descr: route for Akamai 8cc origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20050413 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.246.128.0/18 descr: route for Akamai 8cc origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20050715 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.247.0.0/17 descr: Akamai Aggregate origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20070227 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.247.0.0/18 descr: Akamai Aggregate origin: AS21399 mnt-by: AKAMAI-MNT changed: jpayne [at] akamai.com 20061121 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.247.128.0/18 descr: Akamai Aggregate origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20070227 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 96.6.0.0/15 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20080131 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 96.6.0.0/17 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20070514 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 96.16.0.0/15 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20081017 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 96.16.0.0/16 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20080131 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 96.16.120.0/22 descr: Akamai Technologies origin: AS21399 mnt-by: AKAM1-ALTDB-MNT changed: patrick [at] akamai.com 20100122 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 118.214.0.0/15 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20080131 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 118.214.32.0/20 descr: AKKAMAI origin: AS21399 mnt-by: MAINT-AS18101 changed: ip.nnoc [at] relianceada.com 20081124 #08:44:49Z source: RADB last-modified: 2023-11-13T15:47:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 118.214.128.0/20 descr: AKAMAI origin: AS21399 mnt-by: MAINT-AS18101 changed: somg.dataprovisioning [at] relianceada.com 20090810 #11:29:09Z source: RADB last-modified: 2023-11-13T15:47:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 122.252.32.0/19 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20070514 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 122.252.128.0/20 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20070514 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.56.128.0/17 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20070514 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.252.192.0/18 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20070514 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 173.223.44.0/22 descr: Proxy Registration for PCCW Global customer (Akamai), origin should the Origin AS, and the non‐required remarks field should have the following entry: This route object is for a PCCW Global customer route which is being exported under this origin AS. This route object was created because no existing route object with the same origin was found, and since some BtN peers filter based on these objects this route may be rejected if this object is not created. Please contact peering [at] pccwglobal.com if you have any questions regarding this object. origin: AS21399 mnt-by: MAINT-AS3491 changed: sajwani [at] pccwbtn.com 20100408 #12:05:04Z source: RADB last-modified: 2023-11-13T15:42:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 184.28.26.0/23 descr: Akamai Technologies. Multihoming Block admin-c: MU1-LEVEL3 tech-c: MU1-LEVEL3 origin: AS21399 mnt-by: MASERGY-MNT changed: tim.booth [at] masergy.com 20110317 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 184.50.0.0/15 descr: Akamai - Anchor Route origin: AS21399 mnt-by: AKAMAI-MNT changed: ablock [at] akamai.com 20091022 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 184.214.32.0/20 descr: RELIANCE COMM. CUSTOMER - AKAMAI origin: AS21399 mnt-by: MAINT-AS18101 changed: ip.nnoc [at] relianceada.com 20081118 #06:21:42Z source: RADB last-modified: 2023-11-13T15:47:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:4878::/32 descr: Akamai Aggregate origin: AS21399 mnt-by: AKAM1-ALTDB-MNT changed: jpayne [at] akamai.com 20100112 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2600:1404::/32 descr: Akamai Aggregate origin: AS21399 mnt-by: AKAM1-ALTDB-MNT changed: ablock [at] akamai.com 20100709 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2600:1407::/48 descr: Akamai V6 origin: AS21399 mnt-by: AKAM1-ALTDB-MNT changed: marty [at] akamai.com 20101005 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2600:1409::/48 descr: Akamai V6 origin: AS21399 mnt-by: AKAM1-ALTDB-MNT changed: marty [at] akamai.com 20100910 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source