CTTC-NET
Cluster stats
| Netblocks | 11 |
| All fragments | 13 blocks across 3 clusters |
| Cluster ID | 191999121 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 5 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
IP Ranges (11)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 80.237.11.64/28 | CTTC-NET | RIPE | ASSIGNED PA | ● low |
| 84.88.61.0 – 84.88.63.255 | CTTC | RIPE | ASSIGNED PA | ● low |
| 84.89.8.64/27 | CTTC | RIPE | ASSIGNED PA | ● low |
| 213.137.225.0/24 | CTTC-NET | RIPE | ASSIGNED PA | ● low |
| 213.137.229.0/24 | CTTC-NET | RIPE | ASSIGNED PA | ● low |
| 213.137.230.0/24 | CTTC-NET | RIPE | ASSIGNED PA | ● low |
| 213.137.231.0/24 | CTTC-NET | RIPE | ASSIGNED PA | ● low |
| 213.137.234.0/24 | CTTC-NET | RIPE | ASSIGNED PA | ● low |
| 213.137.252.0/24 | CTTC-NET | RIPE | ASSIGNED PA | ● low |
| 213.137.254.0/23 | CTTC-NET | RIPE | ASSIGNED PA | ● low |
| 2001:40b0:7c22::/48 | CTTC | RIPE | ASSIGNED | ● low |
Network trust
what's this?
RPKI hygiene: C
how networks compare →
72.7%
of checked blocks have valid RPKI ROA coverage
(8 of 11)
Possible discrepancies (6)
These blocks are registered to CTTC-NET but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2001:40b0:7c22::/48 /48 | authorized for AS13041 — Consorci de Serveis Universitaris de Catalunya |
| 84.88.61.0 – 84.88.63.255 /22 | authorized for AS13041 — Consorci de Serveis Universitaris de Catalunya |
| 213.137.254.0/23 /23 | authorized for AS20485 — Joint Stock Company TransTeleCom |
| 213.137.231.0/24 /24 | authorized for AS20485 — Joint Stock Company TransTeleCom |
| 213.137.230.0/24 /24 | authorized for AS20485 — Joint Stock Company TransTeleCom |
| 213.137.252.0/24 /24 | authorized for AS20485 — Joint Stock Company TransTeleCom |
NIC Handles
CESCA-MNT
CTTC-MNT
DUMY-RIPE
DUMY-RIPE
TRANSTELECOM-MNT