Contact Net
ContactNet
Data as of 2026-08-23
Registry
Cluster stats
| Netblocks | 4 · 2,432 IPv4 addresses |
| All fragments | 6 blocks across 2 clusters |
| Cluster ID | 229673059 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | Registry record |
| Shared handles | clustered on 5 shared RIR contact/maintainer handles |
| Registry names | 1 distinct registrant name across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (4)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 77.242.148.0/25 | ContactNet | RIPE | ASSIGNED PA | ● low |
| 91.83.227.0/24 | ContactNet | RIPE | ASSIGNED PA | ● low |
| 194.143.248.0/22 | ContactNet | RIPE | ASSIGNED PA | ● low |
| 194.143.252.0/22 | ContactNet | 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
(4 of 4)
Possible discrepancies (3)
These blocks are registered to ContactNet 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.
| 194.143.248.0/22 /22 | authorized for AS12301 — Invitech ICT Services Kft. |
| 194.143.252.0/22 /22 | authorized for AS12301 — Invitech ICT Services Kft. |
| 91.83.227.0/24 /24 | authorized for AS12301 — Invitech ICT Services Kft. |
NIC Handles
AR15460-RIPE
AS12301-MNT
DUMY-RIPE
DUMY-RIPE
MNT-GISK1