Computer Technology Institute and Press Diophantus
Computer Technology Institute and Press "Diophantus"
Data as of 2026-07-26
BGP inherited
Cluster stats
| Netblocks | 16 · 110,592 IPv4 addresses |
| IPv6 | 3 prefixes (largest 2001:648:3400::/40) |
| All fragments | 19 blocks across 3 clusters |
| Cluster ID | 213944740 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 13 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
6 weekly snapshots · JSON
17
0 netblocks since 2026-07-05
2026-07-05
peak 17
2026-07-26
IP Ranges (16)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 81.186.0.0/17 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 81.186.0.0 – 81.186.223.255 | Computer Technology Institute and Press "Diophantus" | RIPE | ASSIGNED PI | ● high |
| 81.186.75.0/24 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 81.186.76.0/24 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 81.186.128.0/18 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 81.186.192.0/19 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 150.140.0.0/17 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 194.63.160.0/19 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 194.63.160.0 – 194.63.239.255 | Computer Technology Institute and Press "Diophantus" | RIPE | ASSIGNED PI | ● high |
| 194.63.192.0/19 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 194.63.224.0/20 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 194.63.235.0/24 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 194.63.236.0/22 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 2001:648:2300::/47 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 2001:648:2302::/48 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
| 2001:648:3400::/40 | Computer Technology Institute and Press "Diophantus" | BGP | ANNOUNCED | ● high |
IPv6 ranges (3)
Network trust
what's this?
RPKI hygiene: B
how networks compare →
88.2%
of checked blocks have valid RPKI ROA coverage
(15 of 17)
No discrepancies found among checked blocks.
NIC Handles
AS6744
AS8248
CTINET-NOC
CTINET-NOC
DUMY-RIPE
DUMY-RIPE
GR-EDUNET-NOC
GR-EDUNET-NOC
GRNET-NOC
ORG-GHIN1-RIPE
ORG-RACT1-RIPE
RIPE-NCC-END-MNT
+1 more