Technical University of Sofia
BGP inherited
Cluster stats
| Netblocks | 18 · 12,270 IPv4 addresses |
| All fragments | 95 blocks across 11 clusters |
| Cluster ID | 208953776 |
| Registry | BGP |
| Customers | find customers using 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 | |
Footprint over time
5 weekly snapshots · JSON
18
0 netblocks since 2026-07-05
2026-07-05
peak 18
2026-07-19
IP Ranges (18)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 81.161.240.0/20 | Technical University of Sofia | RIPE | ASSIGNED PI | ● high |
| 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 |
Possibly related to this organisation
what's this?Same name family
Separately-registered clusters whose names share “Technical University of” — often
per-country or per-system registrations of the same brand, occasionally a different
organisation sharing the name. Not counted in this organisation's own footprint.
- Technical University of Munich 28 blocks
- Technical University of Gdansk, Academic Computer Center TASK 19 blocks
- Technical University of Lodz 13 blocks
- Technical University of Koszalin 8 blocks
- Technical University of Crete 3 blocks
- Technical University of Kosice 2 blocks
- Technical_University_of_Mombasa 1 blocks
- Technical_University_of_Kenya 1 blocks
Sub-allocations under carriers
IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own
naming convention, not a direct registration.
- Arcelor University Technical via Orange S.A. sub-allocation
- UNIVERSITY-TECHNICAL-COLLEGE via Virgin Media Limited sub-allocation
- Karaganda_technical_University sub-allocation
- Northwestern Polytechnical University Online Education Institute via CNCGROUP IP network of ShangHai IDC sub-allocation
- PUNJAB_TECHNICAL_UNIVERSITY via Quadrant Televentures Limited sub-allocation
- Technical_University_of_Mombasa via Kenya Education Network sub-allocation
- Technical_University_of_Kenya via Kenya Education Network sub-allocation
- Technical_University_of_Mombasa_Kwale_Campus via Kenya Education Network sub-allocation
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