These blocks are registered to baten-lastendienst Logius but cryptographically authorized for a different, unrelated network (3 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

144.43.0.0/17 /17	authorized for AS48037 — SSC-ICT Haaglanden
144.43.128.0/18 /18	authorized for AS48037 — SSC-ICT Haaglanden
144.43.192.0/19 /19	authorized for AS48037 — SSC-ICT Haaglanden
144.43.224.0/20 /20	authorized for AS48037 — SSC-ICT Haaglanden
144.43.240.0/21 /21	authorized for AS16243 — Virtu Secure Webservices B.V.
144.43.240.0/21 /21	authorized for AS16243 — Virtu Secure Webservices B.V.
185.52.4.0/22 /22	authorized for AS47886 — Equinix (Netherlands) B.V.
144.43.252.0/22 /22	authorized for AS16243 — Virtu Secure Webservices B.V.
144.43.248.0/22 /22	authorized for AS48037 — SSC-ICT Haaglanden
144.43.240.0/22 /22	authorized for AS16243 — Virtu Secure Webservices B.V.
144.43.244.0/22 /22	authorized for AS16243 — Virtu Secure Webservices B.V.
144.43.252.0/22 /22	authorized for AS16243 — Virtu Secure Webservices B.V.
185.52.4.0/22 /22	authorized for AS47886 — Equinix (Netherlands) B.V.
144.43.240.0/23 /23	authorized for AS16243 — Virtu Secure Webservices B.V.
144.43.242.0/23 /23	authorized for AS16243 — Virtu Secure Webservices B.V.

AS212157 AS48037-MNT ASP-MNT DUMY-RIPE DUMY-RIPE LOGIUS LOGIUS MINVENW-MNT ORG-BL160-RIPE RIPE-NCC-HM-MNT RIPE-NCC-LEGACY-MNT VIRTU-MNT