COSTAR GROUP, INC.

One corporate group, resolved across 2 separately-registered clusters in the same GLEIF corporate family (ultimate parent LEI 984500Q1D53D08E2E698). Each member's own registration independently matches the family, so clusters that merely inherited a carrier's LEI are excluded.
Data as of 2026-07-26

2 clusters · 24 netblocks · 12,044 IPv4 addresses · 3 IPv6 prefixes · 2 countries

IPv6 ranges (3)

Member clusters

Possibly related

Clusters that share this name but whose own registration doesn't confirm them as part of this corporate family — a different or unverified legal entity (a joint venture, a former subsidiary, or a namesake). Shown for context; not counted in the totals above.