$ query “AS28949” --type=asn → 1 result(s)
AS28949 — TUSNET-AS
Technical University of Sofia
AS28949 is an educational stub network run by Technical University of Sofia, established in Bulgaria in 2003. The network announces 4 096 IPv4 addresses. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇧🇬 Bulgaria
- Category
- Education/Research
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- April 16, 2003
- Last Changed
- March 04, 2026
- Last Seen
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 17 / 1
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 4 096
- Largest IPv4 Prefix
- /20 (4 096 addresses)
- Geolocated Countries
- 🇧🇬 BG (2 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 4 096 total (0.00%)
Connectivity Summary
- Upstream Providers
- 2 upstream autonomous systems providing transit
- Peers
- 0 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 0 downstream autonomous systems buying transit
- Degree
- 2 unique BGP neighbors (providers + customers + peers)
- Reach
- 0 — customer cone size measuring network influence
- Degree Rank
- #33 526
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (17 total)
- 81.161.240.0/20 (4 096 addresses)