These entries are queried from radb.net using whois, you can try my project getting these.
:AS21853 route: 155.3.0.0/16 descr: New Brunswick Power Holding Corporation origin: AS21853 remarks: update origin AS mnt-by: MAINT-AS855 changed: inoc [at] bellaliant.ca 20150127 #13:12:04Z source: RADB last-modified: 2023-11-13T15:47:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 155.3.240.0/23 origin: AS21853 descr: New Brunswick Power Holding Corporation remarks: Proxy routed generated on behalf of a Bell Aliant Customer. For more information or technical issues please contact the Aliant INOC at inoc [at] bellaliant.ca mnt-by: MAINT-AS855 changed: inoc [at] bellaliant.ca 20210114 #14:05:37Z source: RADB last-modified: 2023-11-13T16:03:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 155.3.252.0/23 descr: NB Power origin: AS21853 remarks: Proxy routed generated on behalf of a Bell Aliant Customer. For more information or technical issues please contact the Aliant INOC at inoc [at] aliant.ca mnt-by: MAINT-AS855 changed: serge.vautour [at] aliant.ca 20081028 #13:28:43Z source: RADB last-modified: 2023-11-13T15:39:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 155.3.254.0/23 descr: New brunswick Power Holding Corporation origin: AS21853 mnt-by: MAINT-AS855 changed: inoc [at] aliant.ca 20081215 #11:47:56Z source: RADB last-modified: 2023-11-13T15:39:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source