AS28949
Technical University of Sofia
AS28949 is Technical University of Sofia (tu-sofia.bg). It announces 4,096 IPv4 addresses in 17 prefixes, and 0 IPv6 prefixes.
Bulgaria· RIPE· allocated 2003-04-16· education
4,096
IPv4 addresses announced
17
IPv4 prefixes
0
IPv6 prefixes
100.00%
of its routes RPKI-valid
4,096
of its IPv4 geolocated
1
country
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Bulgaria4,096 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- TUSNET-AS
- name
- Technical University of Sofia
- org
- ORG-TUOS2-RIPE
- org name
- Technical University of Sofia
- org address
- 8, Kliment Ohridski Bul., 1000 Sofia, Bulgaria
- org country
- BG
- country
- BG
- source
- ripe
- status
- ASSIGNED
- created
- 2003-04-16
- updated
- 2025-12-23
- descr
- 8, Kliment Ohridski St. / Sofia-1000, BULGARIA
- maintainer
- RIPE-NCC-END-MNT|TUSOFIA-MNT
- abuse name
- Abuse-C Role
- abuse email
- abuse@tu-sofia.bg
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- VPN IP230.56%
- proxyseller, geonix, mangoproxy0.49%
- None here
- None here
- None here
- None here
- Hosting IP2,04850.00%
- None here
- None here
- None here
- SSH IP551.34%
- 0.15%
- 0.05%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 81.161.240.0/20 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.240.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.241.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.242.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.243.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.244.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.245.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.246.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.247.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.248.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.249.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.250.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.251.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.252.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.253.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.254.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
| 81.161.255.0/24 | Bulgaria | valid | 19 | 2026-10-02 |
00 · Evaluate
Test the real build first.
An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.
01 · License
Then license what you use.
Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell — priced by scope, not by seat.
Annual terms, a named contact, and flexible payment terms — monthly, quarterly or yearly.