$ query “AS25500” --type=asn → 1 result(s)
AS25500 · NTUU-KPI-AS
User Association of Ukrainian Research and Academic Network URAN
AS25500 is run by User Association of Ukrainian Research and Academic Network… and is an educational/research stub network, established in Ukraine in 2002. The system announces a respectable 21 504 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Ukraine.
Basic Information
- Country
- 🇺🇦 Ukraine
- Category
- Education/Research
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- December 11, 2002
- Last Changed
- August 01, 2026
- Last Seen
- August 07, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 12 / 11
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 21 504
- Largest IPv4 Prefix
- /20 (4 096 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇺🇦 Ukraine (42 496 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Peers
- 3 networks exchanging traffic without transit
- Degree
- 5 unique BGP neighbors
- Reach
- 0 networks in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (12 total)
- 77.47.160.0/20 (4 096 addresses (/20 prefix))
- 77.47.192.0/20 (4 096 addresses (/20 prefix))
- 77.47.224.0/20 (4 096 addresses (/20 prefix))
- 77.47.128.0/21 (2 048 addresses (/21 prefix))
- 77.47.184.0/21 (2 048 addresses (/21 prefix))
- 77.47.216.0/21 (2 048 addresses (/21 prefix))
- 77.47.136.0/22 (1 024 addresses (/22 prefix))
- 77.47.140.0/23 (512 addresses (/23 prefix))
- 77.47.176.0/23 (512 addresses (/23 prefix))
- 77.47.208.0/23 (512 addresses (/23 prefix))
- 77.47.214.0/23 (512 addresses (/23 prefix))
IPv6 Prefixes (1 total)
- 2a02:db0::/32