Underworld
Registry
Cluster stats
| Netblocks | 8 · 1,035 IPv4 addresses |
| Registered in | Norway (4) · Greece (1) |
| Cluster ID | 209315867 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | Registry record |
| Shared handles | clustered on 8 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
8
0 netblocks since 2026-07-05
2026-07-05
peak 8
2026-07-19
IP Ranges (8)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 91.213.203.0/24 | Underworld | RIPE | ASSIGNED PI | ● high |
| 91.213.203.0/24 | Underworld | BGP | ANNOUNCED | ● high |
| 185.1.12.0/24 | Underworld | RIPE | ASSIGNED PI | ● high |
| 195.74.77.0/24 | Underworld | RIPE | ASSIGNED PI | ● high |
| 2001:67c:398::/48 | Underworld | BGP | ANNOUNCED | ● high |
| 2001:67c:398::/48 | Underworld | RIPE | ASSIGNED PI | ● high |
| 2001:7f8:76::/48 | Underworld | RIPE | ASSIGNED PI | ● high |
| 83.235.224.176/28 | UNDERWORLD | RIPE | ASSIGNED PA | ● low |
Possibly related to this organisation
what's this?Sub-allocations under carriers
IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own
naming convention, not a direct registration.
- Underworld via ITsjefen AS sub-allocation
- Underworld via ITsjefen AS sub-allocation
- Underworld via ITsjefen AS sub-allocation
Network trust
what's this?
RPKI hygiene: C
how networks compare →
62.5%
of checked blocks have valid RPKI ROA coverage
(5 of 8)
No discrepancies found among checked blocks.
NIC Handles
AS50213
AS50213-MNT
AS50213-MNT
DUMY-RIPE
DUMY-RIPE
ORG-UA154-RIPE
OTENET-GR-MNT
RIPE-NCC-END-MNT