CZ-NORDICTELECOMREGIONAL-20061116
Cluster stats
| Netblocks | 11 |
| All fragments | 230 blocks across 35 clusters |
| Cluster ID | 193455820 |
| 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 (11)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 91.187.32.0/22 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
| 91.187.36.0/24 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
| 91.187.37.0 – 91.187.39.255 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
| 91.187.40.0/21 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
| 91.187.48.0/22 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
| 91.187.53.0/24 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
| 91.187.55.0/25 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
| 91.187.56.0/24 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
| 91.187.57.0 – 91.187.59.255 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
| 91.187.60.0/23 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
| 91.187.62.0 – 91.187.62.191 | CZ-NORDICTELECOMREGIONAL-20061116 | RIPE | ASSIGNED PA | ● low |
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(11 of 11)
Possible discrepancies (9)
These blocks are registered to CZ-NORDICTELECOMREGIONAL-20061116 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.
| 91.187.40.0/21 /21 | authorized for AS42908 — O2 Czech Republic, a.s. |
| 91.187.48.0/22 /22 | authorized for AS42908 — O2 Czech Republic, a.s. |
| 91.187.32.0/22 /22 | authorized for AS42908 — O2 Czech Republic, a.s. |
| 91.187.57.0 – 91.187.59.255 /22 | authorized for AS42908 — O2 Czech Republic, a.s. |
| 91.187.37.0 – 91.187.39.255 /22 | authorized for AS42908 — O2 Czech Republic, a.s. |
| 91.187.60.0/23 /23 | authorized for AS42908 — O2 Czech Republic, a.s. |
| 91.187.56.0/24 /24 | authorized for AS42908 — O2 Czech Republic, a.s. |
| 91.187.53.0/24 /24 | authorized for AS42908 — O2 Czech Republic, a.s. |
| 91.187.36.0/24 /24 | authorized for AS42908 — O2 Czech Republic, a.s. |
NIC Handles
DUMY-RIPE
DUMY-RIPE
mnt-nordictelecom