Technical University of Sofia
Data as of 2026-09-05
BGP inherited
This organisation
| Netblocks | 17 · 4,096 IPv4 addresses |
| Also registered under this name | 95 netblocks across 11 separate records |
| Record ID | 233638616 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 7 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
10 weekly snapshots · JSON
18
0 netblocks since 2026-07-05
2026-07-05
peak 18
2026-08-30
IP Ranges (17)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 81.161.240.0/20 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.240.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.241.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.242.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.243.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.244.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.245.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.246.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.247.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.248.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.249.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.250.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.251.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.252.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.253.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.254.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
| 81.161.255.0/24 | Technical University of Sofia | BGP | ANNOUNCED | ● high |
Domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(18 of 18)
No discrepancies found among checked blocks.
NIC Handles
AS28949
DUMY-RIPE
DUMY-RIPE
ORG-TUOS2-RIPE
RIPE-NCC-END-MNT
TUSOFIA-MNT
TUSOFIA-MNT