O2 Business Services, a.s
Cluster stats
| Netblocks | 22 |
| All fragments | 55 blocks across 4 clusters |
| Cluster ID | 191599208 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 11 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
22
0 netblocks since 2026-07-05
2026-07-05
peak 22
2026-07-06
IP Ranges (22)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 31.3.32.0/19 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 37.58.0.0/20 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 37.152.96.0/19 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 46.34.224.0/19 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 90.176.0.0/19 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 91.191.69.0/24 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 91.191.80.0/22 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 91.210.17.11/32 | O2 Business Services | PEERINGDB | ASSIGNED | ● high |
| 151.236.224.0/20 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 185.0.20.32/32 | O2 Business Services | PEERINGDB | ASSIGNED | ● high |
| 185.103.144.0/22 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 192.108.148.42/32 | O2 Business Services | PEERINGDB | ASSIGNED | ● high |
| 194.30.187.27/32 | O2 Business Services | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:14::b8:1/128 | O2 Business Services | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:2f::42/128 | O2 Business Services | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:7f::32/128 | O2 Business Services | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:91::40:1/128 | O2 Business Services | PEERINGDB | ASSIGNED | ● high |
| 2a03:6947:1800::/40 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 2a06:2c40::/29 | O2 Business Services, a.s | BGP | ANNOUNCED | ● high |
| 90.176.0.0/19 | O2 Business Services, a.s | RIPE | ALLOCATED PA | ● low |
| 185.103.144.0/22 | O2 Business Services, a.s | RIPE | ALLOCATED PA | ● low |
| 2a06:2c40::/29 | O2 Business Services, a.s | RIPE | ALLOCATED-BY-RIR | ● low |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
81.8%
of checked blocks have valid RPKI ROA coverage
(18 of 22)
No discrepancies found among checked blocks.
NIC Handles
AS28952
AS28952
AS5610-MTN
DUMY-RIPE
DUMY-RIPE
JW-MNT
O2SK-MNT
ORG-OBSS2-RIPE
RIPE-NCC-HM-MNT
SK-BS-MNT
SK-BS-MNT