AS25500
User Association of Ukrainian Research and Academic Network URAN
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 2 internet exchanges: UA-IX, RUDAKI-IX
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS25500 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 77.47.140.0/23 | 26,451 | 2026-09-18 01:45:44 |
| 77.47.216.0/21 | 24,681 | 2026-09-18 01:45:44 |
| 77.47.214.0/23 | 24,678 | 2026-09-18 01:45:44 |
| 77.47.208.0/23 | 24,649 | 2026-09-18 01:45:44 |
| 77.47.160.0/20 | 24,584 | 2026-09-18 01:45:44 |
| 77.47.184.0/21 | 24,524 | 2026-09-18 01:45:44 |
| 77.47.224.0/20 | 24,516 | 2026-09-18 01:45:44 |
| 77.47.176.0/23 | 24,489 | 2026-09-18 01:45:44 |
| 77.47.192.0/20 | 24,475 | 2026-09-18 01:45:44 |
| 77.47.136.0/22 | 24,453 | 2026-09-18 01:45:44 |
| 77.47.128.0/21 | 24,421 | 2026-09-18 01:45:44 |
| 77.47.194.0/24 | 24,318 | 2026-09-18 01:45:44 |
Frequently Asked Questions
What is AS25500?
AS25500 is an Autonomous System Number assigned to User Association of Ukrainian Research and Academic Network URAN. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS25500 announce?
AS25500 announces 21.5K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in Ukraine.
Who operates AS25500?
AS25500 is operated by User Association of Ukrainian Research and Academic Network URAN. The organization is based in Ukraine. You can view all IP ranges and related ASNs on the organization page.
What country is AS25500 registered in?
AS25500 is registered in Ukraine. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
