HARPERCOLLINS PUBLISHERS LIMITED
HARPER COLLINS PUBLISHERS INC.
GLEIF verified
Complete entity footprint
3 linked clusters ·
44 netblocks ·
116,438 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
549300QVNE7BJCU36M26
Registered name
HARPERCOLLINS PUBLISHERS LIMITED
Jurisdiction
Ultimate parent
NEWS CORPORATION
549300ITS31QK8VRBQ14
Cluster stats
| Netblocks | 6 · 2,812 IPv4 addresses |
| Cluster ID | 208792586 |
| Registry | BGP |
| Owner jurisdiction | GB |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 549300QVNE7BJCU36M26 |
| Shared handles | clustered on 12 shared RIR contact/maintainer handles |
| Registry names | 4 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
7
0 netblocks since 2026-07-05
2026-07-05
peak 7
2026-07-19
IP Ranges (6)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 38.113.187.0/24 | HARPER COLLINS PUBLISHERS INC. | BGP | ANNOUNCED | ● high |
| 199.201.6.0/24 | HARPER COLLINS PUBLISHERS INC. | BGP | ANNOUNCED | ● high |
| 199.201.7.0/24 | HARPER COLLINS PUBLISHERS INC. | BGP | ANNOUNCED | ● high |
| 199.201.0.0/21 | HARPER COLLINS PUBLISHERS INC. | ARIN | DIRECT ALLOCATION | ● low |
| 2a00:2381:e629::/48 | HARPER-MAY | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a02:2318:5404::/48 | HARPER-V6 | RIPE | ASSIGNED | ● low |
Corporate group (3 confirmed entities)
- Dow Jones & Company, Inc. 37 blocks
- NEWS CORP UK & IRELAND LIMITED 1 blocks
Network trust
what's this?
RPKI hygiene: F
how networks compare →
16.7%
of checked blocks have valid RPKI ROA coverage
(1 of 6)
Possible discrepancies (1)
These blocks are registered to HARPER COLLINS PUBLISHERS INC. but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2a00:2381:e629::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
NIC Handles
AMBRU-ARIN
AMBRU-ARIN
AS14611
AS15766-MNT
BTNET-MNT
DUMY-RIPE
DUMY-RIPE
HCP-11
RM514-ARIN
SIMAL-ARIN
YOCUM19-ARIN
YOCUM19-ARIN