AS21500
Scientific Production Enterprise Technaukservice Ltd
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
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: Giganet IXN: Global exchange
AS21500 — global IP footprint
Cities where AS21500 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS21500 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 |
|---|---|---|
| 92.118.226.0/24 | 27,555 | 2026-07-24 00:28:09 |
| 81.17.130.0/24 | 27,550 | 2026-07-24 00:28:09 |
| 195.69.186.0/24 | 27,509 | 2026-07-24 00:28:09 |
| 195.69.184.0/24 | 27,508 | 2026-07-24 00:28:09 |
| 195.69.185.0/24 | 27,502 | 2026-07-24 00:28:09 |
| 62.106.68.0/24 | 27,442 | 2026-07-24 00:02:46 |
| 195.69.184.0/22 | 27,433 | 2026-07-24 00:28:09 |
| 194.54.187.0/24 | 27,426 | 2026-07-24 00:28:09 |
| 92.118.225.0/24 | 27,425 | 2026-07-24 00:02:46 |
| 92.118.224.0/24 | 27,420 | 2026-07-24 00:02:46 |
| 195.234.220.0/22 | 27,364 | 2026-07-24 00:28:10 |
| 193.178.248.0/22 | 25,658 | 2026-07-24 00:28:10 |
| 91.246.220.0/22 | 25,235 | 2026-07-24 00:28:09 |
| 195.123.184.0/24 | 25,140 | 2026-07-24 00:28:09 |
| 195.123.185.0/24 | 25,006 | 2026-07-24 00:28:09 |
| 195.123.177.0/24 | 24,939 | 2026-07-24 00:28:09 |
| 81.17.142.0/24 | 23,726 | 2026-07-24 00:28:09 |
| 85.90.200.0/22 | 23,073 | 2026-07-24 00:28:10 |
| 92.118.136.0/22 | 19,580 | 2026-07-24 00:28:08 |
| 81.17.140.0/24 | 17,603 | 2026-07-24 00:28:09 |
| 194.54.186.0/24 | 10,547 | 2026-07-24 00:07:41 |
Frequently Asked Questions
What is AS21500?
AS21500 is an Autonomous System Number assigned to Scientific Production Enterprise Technaukservice Ltd. 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 AS21500 announce?
AS21500 announces 9.0K IPv4 addresses distributed across 16 routed CIDR prefixes. The network is registered in Ukraine.
Who operates AS21500?
AS21500 is operated by Scientific Production Enterprise Technaukservice Ltd. The organization is based in Ukraine. You can view all IP ranges and related ASNs on the organization page.
What country is AS21500 registered in?
AS21500 is registered in Ukraine. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
