FactSet GmbH
Cluster stats
| Netblocks | 10 |
| All fragments | 47 blocks across 6 clusters |
| Cluster ID | 191798553 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 9 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
2 weekly snapshots · JSON
10
0 netblocks since 2026-07-05
2026-07-05
peak 10
2026-07-06
IP Ranges (10)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 213.173.171.0/24 | FactSet GmbH | BGP | ANNOUNCED | ● high |
| 217.11.192.0/20 | FactSet GmbH | BGP | ANNOUNCED | ● high |
| 217.11.192.0/21 | FactSet GmbH | BGP | ANNOUNCED | ● high |
| 217.11.200.0/21 | FactSet GmbH | BGP | ANNOUNCED | ● high |
| 2a02:fd00::/29 | FactSet GmbH | BGP | ANNOUNCED | ● high |
| 213.120.215.112/29 | FACTSET | RIPE | ASSIGNED PA | ● low |
| 217.11.192.0/20 | FactSet GmbH | RIPE | ALLOCATED PA | ● low |
| 2a00:2381:308::/48 | FACTSET | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a00:2381:308::/56 | FACTSET | RIPE | ASSIGNED | ● low |
| 2a02:fd00::/29 | FactSet GmbH | RIPE | ALLOCATED-BY-RIR | ● low |
Network trust
what's this?
RPKI hygiene: D
how networks compare →
40.0%
of checked blocks have valid RPKI ROA coverage
(4 of 10)
Possible discrepancies (2)
These blocks are registered to FactSet GmbH 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.
| 2a00:2381:308::/48 /48 | authorized for AS2856 — British Telecommunications PLC |
| 2a00:2381:308::/56 /56 | authorized for AS2856 — British Telecommunications PLC |
NIC Handles
AS15613
BTNET-MNT
COLT-CH-MNT
DUMY-RIPE
DUMY-RIPE
ISG-MNT
ISG-MNT
ORG-ISA2-RIPE
RIPE-NCC-HM-MNT