ULTUMUS LIMITED
ULTUMUS-LIMITED
GLEIF verified
Complete entity footprint
9 linked clusters ·
58 netblocks ·
169,694 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
984500FU1N5C1P4D9D49
Registered name
ULTUMUS LIMITED
Jurisdiction
Ultimate parent
SIX Group AG
529900ZMNQFCPP762W05
Cluster stats
| Netblocks | 1 |
| Cluster ID | 211970821 |
| Registry | RIPE |
| Owner jurisdiction | GB |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 984500FU1N5C1P4D9D49 |
| Shared handles | clustered on 3 shared RIR contact/maintainer handles |
| Registry names | 1 distinct registrant name across these blocks |
| full provenance (JSON) → · how attribution works | |
IP Ranges (1)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 2a00:2381:36ae::/48 | ULTUMUS-LIMITED | RIPE | AGGREGATED-BY-LIR | ● high |
Corporate group (9 confirmed entities)
+5 additional unconfirmed candidates not shown — full list (JSON)- SIX Group Services AG 34 blocks
- Aquis Exchange Limited 6 blocks
- SIX Swiss Exchange AG 6 blocks
- Bolsas y Mercados Espanoles Inntech SA 4 blocks
- SIX Financial Information Singapore Pte Ltd 4 blocks
- SIX Financial Information USA Inc. 1 blocks
- SIX Financial Information UK Ltd 1 blocks
- BME MARKETS & EXCHANGES, S.A.U. 1 blocks
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(1 of 1)
RPKI-inferred operator
British Telecommunications Limited
Nearly all of this network's RPKI-covered space is cryptographically authorized for this
single operator — the registered netname is likely one of its internal infrastructure labels.
No discrepancies found among checked blocks.
NIC Handles
BTNET-MNT
DUMY-RIPE
DUMY-RIPE