CZ-ASTELNET-20120829
Data as of 2026-07-26
Handle
Limited data: only 3 ranges found registered
under this exact name. This may not reflect the organisation's full internet footprint — many companies'
web and cloud infrastructure is hosted under a third-party provider's own registration rather than their own.
Cluster stats
| Netblocks | 3 · 2,048 IPv4 addresses |
| IPv6 | 2 prefixes (largest 2a01:afc0::/32) |
| Cluster ID | 214967274 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | RIR handle |
| Shared handles | clustered on 6 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (3)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 89.107.128.0/21 | CZ-ASTELNET-20060428 | RIPE | ALLOCATED PA | ● low |
| 2a01:afc0::/32 | CZ-ASTELNET-20120829 | RIPE | ALLOCATED-BY-RIR | ● low |
| 2a01:afc0:0:1::/64 | CZ-ASTELNET-20120829 | RIPE | ASSIGNED | ● low |
IPv6 ranges (2)
Network trust
what's this?
RPKI hygiene: C
how networks compare →
66.7%
of checked blocks have valid RPKI ROA coverage
(2 of 3)
No discrepancies found among checked blocks.
NIC Handles
AC38743-RIPE
DUMY-RIPE
DUMY-RIPE
MNT-ASTELNET
ORG-As64-RIPE
RIPE-NCC-HM-MNT