JANUS HENDERSON ADMINISTRATION UK LIMITED

Data as of 2026-07-26
GLEIF verified
Complete entity footprint
2 linked clusters · 13 netblocks · 4,112 IPv4 addresses · 2 IPv6 prefixes
This organisation's clusters combined by evidence — shared GLEIF corporate family — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
213800RUDVAGJWO6I253
Registered name
JANUS HENDERSON ADMINISTRATION UK LIMITED
Jurisdiction
GB
Ultimate parent
JANUS HENDERSON GROUP PLC
2138009WPYMWJN3RVF44
Cluster stats
Netblocks10 · 4,096 IPv4 addresses
IPv6 1 prefix (largest 2a0a:8980::/29)
All fragments 12 blocks across 2 clusters
Cluster ID214468500
RegistryBGP
Owner jurisdictionGB
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 213800RUDVAGJWO6I253
Shared handles clustered on 7 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
10 0 netblocks since 2026-07-05
2026-07-05 peak 10 2026-07-26

IP Ranges (10)

⬇ export CSV
CIDR Org name Registry Status Confidence
144.2.128.0/24 JANUS HENDERSON ADMINISTRATION UK LIMITED BGP ANNOUNCED ● high
144.2.129.0/24 JANUS HENDERSON ADMINISTRATION UK LIMITED BGP ANNOUNCED ● high
144.2.130.0/24 JANUS HENDERSON ADMINISTRATION UK LIMITED BGP ANNOUNCED ● high
144.2.131.0/24 JANUS HENDERSON ADMINISTRATION UK LIMITED BGP ANNOUNCED ● high
144.2.136.0/24 JANUS HENDERSON ADMINISTRATION UK LIMITED BGP ANNOUNCED ● high
144.2.140.0/24 JANUS HENDERSON ADMINISTRATION UK LIMITED BGP ANNOUNCED ● high
144.2.142.0/24 JANUS HENDERSON ADMINISTRATION UK LIMITED BGP ANNOUNCED ● high
144.2.143.0/24 JANUS HENDERSON ADMINISTRATION UK LIMITED BGP ANNOUNCED ● high
144.2.128.0/20 JANUS HENDERSON ADMINISTRATION UK LIMITED RIPE LEGACY ● low
2a0a:8980::/29 JANUS HENDERSON ADMINISTRATION UK LIMITED RIPE ALLOCATED-BY-RIR ● low

IPv6 ranges (1)

CIDR
2a0a:8980::/29

Corporate group (2 confirmed entities)

+5 additional unconfirmed candidates not shown — full list (JSON)

Network trust

what's this?
RPKI hygiene: B how networks compare →
80.0% of checked blocks have valid RPKI ROA coverage (8 of 10)
No discrepancies found among checked blocks.

NIC Handles

AS8444 DUMY-RIPE DUMY-RIPE HENDERSON-MNT ORG-HAL4-RIPE RIPE-NCC-HM-MNT RIPE-NCC-LEGACY-MNT