These entries are queried from radb.net using whois, you can try my project getting these.
:AS37133 route: 41.75.208.0/20 descr: Route to Airtel TZ origin: AS37133 mnt-by: CELTEL-MNT changed: *** [at] airtel.co.tz20181015 20181015 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 41.75.208.0/20 descr: Route to Airtel Tanzania origin: AS37133 mnt-by: GF68067-MNT mnt-routes: RIPE-DBM-MNT created: 2010-11-16T11:43:11Z last-modified: 2018-09-04T16:25:41Z source: RIPE-NONAUTH 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: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 41.78.56.0/22 origin: AS37133 mnt-by: GF68067-MNT created: 2018-07-06T22:12:48Z last-modified: 2018-09-04T19:30:34Z source: RIPE-NONAUTH 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: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 41.78.59.0/24 descr: Route to Airtel Tanzania origin: AS37133 mnt-by: GF68067-MNT created: 2011-05-20T07:24:40Z last-modified: 2018-09-04T16:55:03Z source: RIPE-NONAUTH 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: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 105.234.0.0/16 descr: Airtel Malawi Prefix origin: AS37133 mnt-by: CELTEL-MNT changed: *** [at] tz.airtel.com 20180710 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.156.0.0/14 descr: Route to Airtel Tanzania origin: AS37133 mnt-by: GF68067-MNT created: 2014-08-06T14:00:14Z last-modified: 2018-09-04T17:58:41Z source: RIPE-NONAUTH 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: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.156.0.0/14 descr: Route to Airtel TZ origin: AS37133 mnt-by: CELTEL-MNT changed: *** [at] airtel.co.tz20181015 20181015 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.46.120.0/22 descr: Route to Celtel Tanzania via Gatewaycomms origin: AS37133 mnt-by: RIPE-NCC-LOCKED-MNT created: 2009-11-09T11:30:30Z last-modified: 2018-09-04T16:06:29Z source: RIPE-NONAUTH 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: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.46.120.0/22 descr: Route to Airtel TZ origin: AS37133 mnt-by: CELTEL-MNT changed: *** [at] airtel.co.tz20181015 20181015 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.46.120.0/23 descr: Zain Tanzania origin: AS37133 mnt-by: RIPE-NCC-LOCKED-MNT created: 2009-11-09T11:25:51Z last-modified: 2018-09-04T16:06:29Z source: RIPE-NONAUTH 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: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.152.0.0/16 descr: Route to Airtel Tanzania origin: AS37133 mnt-by: GF68067-MNT created: 2012-09-06T13:22:50Z last-modified: 2018-09-04T17:15:56Z source: RIPE-NONAUTH 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: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.152.0.0/16 descr: Route to Airtel TZ origin: AS37133 mnt-by: CELTEL-MNT changed: *** [at] airtel.co.tz20181015 20181015 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.186.0.0/15 descr: Route to Airtel TZ origin: AS37133 mnt-by: GF68067-MNT created: 2013-03-14T11:31:33Z last-modified: 2018-09-04T17:35:49Z source: RIPE-NONAUTH 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: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.186.0.0/15 descr: Route to Airtel TZ origin: AS37133 mnt-by: CELTEL-MNT changed: *** [at] airtel.co.tz20181015 20181015 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2c0f:f2f8::/32 descr: Route to Airtel TZ origin: AS37133 mnt-by: CELTEL-MNT changed: *** [at] airtel.co.tz20181015 20181015 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source