PORR-CZ
Cluster stats
| Netblocks | 6 |
| All fragments | 71 blocks across 24 clusters |
| Cluster ID | 191479369 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| 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 (6)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 193.85.18.220/30 | PORR-CZ | RIPE | ASSIGNED PA | ● low |
| 193.86.3.32/29 | PORR-CZ | RIPE | ASSIGNED PA | ● low |
| 193.179.157.40/29 | PORR-CZ | RIPE | ASSIGNED PA | ● low |
| 194.213.42.128/30 | PORR-CZ | RIPE | ASSIGNED PA | ● low |
| 2001:af0:8002:1d00::/56 | PORR-CZ | RIPE | ASSIGNED | ● low |
| 2001:af0:8002:1e00::/56 | PORR-CZ | RIPE | ASSIGNED | ● low |
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(6 of 6)
Possible discrepancies (2)
These blocks are registered to PORR-CZ 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.
| 2001:af0:8002:1e00::/56 /56 | authorized for AS13036 — T-Mobile Czech Republic a.s. |
| 2001:af0:8002:1d00::/56 /56 | authorized for AS13036 — T-Mobile Czech Republic a.s. |
NIC Handles
DUMY-RIPE
DUMY-RIPE
GTSCZ-MNT