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
- Active-threat / abuse risk −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS39521 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 193.57.95.0/24 | AS6830, AS39521 | 2026-10-27 12:06:37 |
Network profile
Source: PeeringDB →Present at 5 internet exchanges: Global-IX, GNM-IX, Frys-IX, AMS-IX, ERA-IX Amsterdam
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS39521 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 |
|---|---|---|
| 45.10.17.0/24 | 171,152 | 2026-10-27 11:07:31 |
| 74.0.200.0/22 | 56,195 | 2026-10-27 11:59:55 |
| 74.0.160.0/22 | 54,981 | 2026-10-27 11:59:55 |
| 74.0.132.0/22 | 54,872 | 2026-10-27 11:59:55 |
| 68.165.176.0/22 | 52,679 | 2026-10-27 11:59:55 |
| 68.165.208.0/22 | 50,188 | 2026-10-27 11:59:13 |
| 68.165.140.0/22 | 50,029 | 2026-10-27 11:59:13 |
| 74.0.248.0/22 | 50,019 | 2026-10-27 11:59:13 |
| 45.10.18.0/24 | 44,884 | 2026-10-27 12:01:41 |
| 5.22.204.0/22 | 40,295 | 2026-10-27 11:59:13 |
| 45.95.40.0/24 | 19,356 | 2026-10-27 11:59:42 |
| 45.95.41.0/24 | 18,689 | 2026-10-27 11:50:03 |
| 45.10.16.0/24 | 18,068 | 2026-10-27 11:59:13 |
| 82.23.188.0/24 | 18,037 | 2026-10-27 11:59:13 |
| 143.20.104.0/24 | 17,756 | 2026-10-27 11:59:13 |
| 82.22.186.0/24 | 17,747 | 2026-10-27 11:59:13 |
| 82.21.165.0/24 | 17,525 | 2026-10-27 11:59:13 |
| 82.21.116.0/24 | 17,523 | 2026-10-27 11:59:13 |
| 143.20.62.0/24 | 17,477 | 2026-10-27 11:59:13 |
| 45.130.100.0/22 | 17,404 | 2026-10-27 11:59:13 |
| 82.21.58.0/24 | 17,400 | 2026-10-27 11:59:13 |
| 82.22.143.0/24 | 17,393 | 2026-10-27 11:59:13 |
| 143.20.125.0/24 | 17,389 | 2026-10-27 11:59:13 |
| 72.244.124.0/22 | 17,369 | 2026-10-27 11:59:13 |
| 45.88.5.0/24 | 17,368 | 2026-10-27 11:59:13 |
| 143.20.61.0/24 | 17,349 | 2026-10-27 11:59:13 |
| 82.21.126.0/24 | 17,343 | 2026-10-27 11:59:13 |
| 68.164.0.0/22 | 17,318 | 2026-10-27 11:59:13 |
| 143.20.124.0/24 | 17,307 | 2026-10-27 11:59:13 |
| 45.88.6.0/24 | 17,280 | 2026-10-27 11:59:13 |
| 45.88.7.0/24 | 17,276 | 2026-10-27 11:59:13 |
| 95.178.107.0/24 | 17,265 | 2026-10-27 11:59:13 |
| 143.20.54.0/24 | 17,235 | 2026-10-27 11:59:13 |
| 82.22.157.0/24 | 17,062 | 2026-10-27 11:59:13 |
| 143.20.6.0/24 | 17,012 | 2026-10-27 11:59:13 |
| 83.229.34.0/24 | 17,003 | 2026-10-27 11:59:13 |
| 217.194.153.0/24 | 16,912 | 2026-10-27 11:59:13 |
| 188.191.51.0/24 | 16,900 | 2026-10-27 11:59:13 |
| 188.191.50.0/24 | 16,817 | 2026-10-27 11:59:13 |
| 212.107.4.0/22 | 16,728 | 2026-10-27 11:59:13 |
| 185.144.56.0/22 | 16,681 | 2026-10-27 11:59:13 |
| 188.191.49.0/24 | 15,927 | 2026-10-27 11:59:13 |
| 82.47.200.0/24 | 12,109 | 2026-08-12 20:16:42 |
| 84.75.190.0/24 | 11,801 | 2026-08-16 20:06:23 |
| 167.148.40.0/24 | 11,309 | 2026-08-26 15:10:08 |
| 82.23.191.0/24 | 10,647 | 2026-08-28 09:04:17 |
| 82.21.112.0/24 | 10,419 | 2026-08-28 09:04:05 |
| 84.75.191.0/24 | 9,065 | 2026-07-15 09:27:05 |
| 84.75.189.0/24 | 9,020 | 2026-07-15 09:27:05 |
| 82.47.205.0/24 | 7,766 | 2026-07-16 07:13:00 |
Showing top 50 of 68 announced prefixes by sample volume.
Frequently Asked Questions
What is AS39521?
AS39521 is an Autonomous System Number assigned to Tngnet B.v.. 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 AS39521 announce?
AS39521 announces 20.7K IPv4 addresses distributed across 37 routed CIDR prefixes. The network is registered in The Netherlands.
Who operates AS39521?
AS39521 is operated by Tngnet B.v.. The organization is based in The Netherlands. You can view all IP ranges and related ASNs on the organization page.
What country is AS39521 registered in?
AS39521 is registered in The Netherlands. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
