These entries are queried from radb.net using whois, you can try my project getting these.
:AS26297 route: 165.140.212.0/22 origin: AS26297 descr: HOWARD COUNTY 3430 COURT HOUSE DR Ellicott City MD 21043 United States member-of: RS-HOCO admin-c: FORDM16-ARIN tech-c: BROAD127-ARIN tech-c: FORDM16-ARIN tech-c: MILLE3209-ARIN tech-c: MPE236-ARIN mnt-by: MNT-HCM-55 created: 2021-10-06T12:30:17Z last-modified: 2023-11-30T15:58:25Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.140.212.0/24 origin: AS26297 descr: HOWARD COUNTY 3430 COURT HOUSE DR Ellicott City MD 21043 United States member-of: RS-HOCO admin-c: FORDM16-ARIN tech-c: BROAD127-ARIN tech-c: FORDM16-ARIN tech-c: MILLE3209-ARIN tech-c: MPE236-ARIN mnt-by: MNT-HCM-55 created: 2022-10-21T11:16:10Z last-modified: 2023-11-30T15:58:25Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.140.213.0/24 origin: AS26297 descr: HOWARD COUNTY 3430 COURT HOUSE DR Ellicott City MD 21043 United States member-of: RS-HOCO admin-c: FORDM16-ARIN tech-c: BROAD127-ARIN tech-c: FORDM16-ARIN tech-c: MILLE3209-ARIN tech-c: MPE236-ARIN mnt-by: MNT-HCM-55 created: 2022-10-21T11:17:26Z last-modified: 2023-11-30T15:58:25Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.140.214.0/24 origin: AS26297 descr: HOWARD COUNTY 3430 COURT HOUSE DR Ellicott City MD 21043 United States member-of: RS-HOCO admin-c: FORDM16-ARIN tech-c: BROAD127-ARIN tech-c: FORDM16-ARIN tech-c: MILLE3209-ARIN tech-c: MPE236-ARIN mnt-by: MNT-HCM-55 created: 2022-10-21T11:18:21Z last-modified: 2023-11-30T15:58:25Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.140.215.0/24 origin: AS26297 descr: HOWARD COUNTY 3430 COURT HOUSE DR Ellicott City MD 21043 United States member-of: RS-HOCO admin-c: FORDM16-ARIN tech-c: BROAD127-ARIN tech-c: FORDM16-ARIN tech-c: MILLE3209-ARIN tech-c: MPE236-ARIN mnt-by: MNT-HCM-55 created: 2022-10-21T11:19:24Z last-modified: 2023-11-30T15:58:25Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 167.102.188.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS26297 remarks: Proxy for EDI customer Howard County Govt mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamhere.cable.comcast.com 20150323 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 167.102.248.0/21 origin: AS26297 descr: Proxy-registered route object for NetMD admin-c: Mid-Atlantic Crossroads tech-c: Mid-Atlantic Crossroads remarks: This route object is for a Mid-Atlantic Crossroads customer route mnt-by: MAINT-AS10886 changed: dave [at] maxgigapop.net 20211021 #16:04:01Z source: RADB last-modified: 2023-11-13T16:08:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.51.120.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS26297 remarks: Proxy add for customer Howard County Maryland mnt-by: MAINT-AS7922 changed: chris_johnson8 [at] cable.comcast.com 20151103 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.51.121.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS26297 remarks: Proxy add for customer Howard County Maryland mnt-by: MAINT-AS7922 changed: chris_johnson8 [at] cable.comcast.com 20151103 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:9b40::/32 origin: AS26297 descr: HOWARD COUNTY 3430 COURT HOUSE DR Ellicott City MD 21043 United States member-of: RS-HOCO admin-c: FORDM16-ARIN tech-c: BROAD127-ARIN tech-c: FORDM16-ARIN tech-c: MILLE3209-ARIN tech-c: MPE236-ARIN mnt-by: MNT-HCM-55 created: 2021-10-06T12:41:20Z last-modified: 2023-11-30T15:58:25Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source