GRAHAM HOLDINGS COMPANY
Graham Holdings Company
Data as of 2026-07-26
GLEIF verified
Complete entity footprint
2 linked clusters ·
2 netblocks ·
272 IPv4 addresses
This organisation's clusters combined by evidence —
shared GLEIF corporate family
— not name similarity, so genuinely different organisations that share a name are excluded.
LEI
529900BOSCEEEMAFQJ29
Registered name
GRAHAM HOLDINGS COMPANY
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 1 · 256 IPv4 addresses |
| All fragments | 180 blocks across 155 clusters |
| Cluster ID | 214453675 |
| Registry | BGP |
| Owner jurisdiction | US-DE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 529900BOSCEEEMAFQJ29 |
| Shared handles | clustered on 1 shared RIR contact/maintainer handle |
| Registry names | 1 distinct registrant name across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (1)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 38.100.48.0/24 | Graham Holdings Company | BGP | ANNOUNCED | ● high |
Corporate group (2 confirmed entities)
- Kaplan International UK 1 blocks
NIC Handles
AS63261