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
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 10 internet exchanges: Equinix Paris: Equinix IX - PA Metro, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, AMS-IX, France-IX Paris, ESpanix Madrid Lower LAN, ESpanix Madrid Upper LAN, nine - six in Paris, DE-CIX Madrid: DE-CIX Madrid Peering LAN, 1-IX EU, nine
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS8399 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 |
|---|---|---|
| 195.135.48.0/24 | 70,160 | 2026-10-26 14:34:05 |
| 195.135.12.0/23 | 54,234 | 2026-10-26 14:34:05 |
| 195.135.48.0/20 | 50,909 | 2026-10-26 14:34:05 |
| 37.139.120.0/21 | 50,737 | 2026-10-26 14:34:05 |
| 185.76.216.0/22 | 50,604 | 2026-10-26 14:34:05 |
| 157.143.128.0/17 | 16,578 | 2026-10-26 14:34:30 |
| 88.213.224.0/19 | 16,286 | 2026-10-26 14:34:30 |
| 217.181.128.0/17 | 16,187 | 2026-10-26 14:34:30 |
| 37.139.124.0/24 | 15,360 | 2026-10-01 21:16:14 |
| 193.142.158.0/24 | 15,329 | 2026-10-26 14:34:31 |
| 185.42.176.0/22 | 15,028 | 2026-10-26 14:34:30 |
| 185.50.53.0/24 | 14,956 | 2026-10-26 14:34:31 |
| 185.50.55.0/24 | 14,952 | 2026-10-26 14:34:31 |
| 185.50.52.0/24 | 14,945 | 2026-10-26 14:34:31 |
| 217.74.96.0/20 | 14,931 | 2026-10-26 14:34:30 |
| 185.50.54.0/24 | 14,928 | 2026-10-26 14:34:31 |
| 185.249.20.0/22 | 14,884 | 2026-10-26 14:34:30 |
| 185.6.92.0/22 | 14,701 | 2026-10-26 14:34:30 |
| 185.8.252.0/22 | 14,681 | 2026-10-26 14:34:30 |
| 81.93.0.0/19 | 14,671 | 2026-10-26 14:34:30 |
| 65.39.64.0/19 | 14,652 | 2026-10-26 14:34:30 |
| 37.97.96.0/20 | 14,552 | 2026-10-26 14:34:30 |
| 37.97.64.0/19 | 14,517 | 2026-10-26 14:34:30 |
| 178.174.96.0/20 | 14,507 | 2026-10-26 14:34:30 |
| 80.251.96.0/20 | 14,488 | 2026-10-26 14:34:30 |
| 155.2.128.0/19 | 14,480 | 2026-10-26 14:34:30 |
| 185.32.208.0/22 | 14,425 | 2026-10-26 14:34:30 |
| 185.65.248.0/22 | 14,384 | 2026-10-26 14:34:30 |
| 178.255.160.0/21 | 14,382 | 2026-10-26 14:34:30 |
| 195.135.0.0/17 | 14,341 | 2026-10-26 14:34:30 |
| 185.24.140.0/22 | 14,327 | 2026-10-26 14:34:30 |
| 195.135.0.0/18 | 14,302 | 2026-10-26 14:34:30 |
| 185.218.208.0/22 | 14,035 | 2026-10-26 14:34:30 |
| 155.2.150.0/23 | 5,054 | 2026-07-13 06:46:18 |
| 88.213.253.142/32 | 2 | 2026-06-10 21:41:10 |
| 157.143.200.235/32 | 2 | 2026-06-10 21:41:10 |
| 157.143.230.194/32 | 2 | 2026-06-10 21:25:50 |
| 88.213.225.250/32 | 2 | 2026-06-10 21:41:10 |
| 217.181.239.174/32 | 2 | 2026-06-10 21:41:10 |
| 88.213.244.234/32 | 2 | 2026-06-10 21:41:10 |
| 157.143.192.123/32 | 2 | 2026-06-10 21:41:10 |
| 157.143.237.88/32 | 2 | 2026-06-10 21:41:10 |
| 157.143.230.234/32 | 2 | 2026-06-10 21:41:10 |
| 217.181.224.88/32 | 2 | 2026-06-10 21:41:10 |
| 217.181.165.7/32 | 2 | 2026-06-10 21:41:10 |
| 157.143.152.60/32 | 2 | 2026-06-10 21:41:10 |
| 80.251.106.19/32 | 2 | 2026-06-10 21:41:10 |
| 37.97.82.82/32 | 2 | 2026-06-10 21:41:10 |
| 217.181.140.244/32 | 1 | 2026-06-10 21:41:10 |
| 157.143.204.59/32 | 1 | 2026-06-12 07:52:56 |
Showing top 50 of 53 announced prefixes by sample volume.
Frequently Asked Questions
What is AS8399?
AS8399 is an Autonomous System Number assigned to SEWAN SAS. 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 AS8399 announce?
AS8399 announces 165.4K IPv4 addresses distributed across 37 routed CIDR prefixes. The network is registered in France.
Who operates AS8399?
AS8399 is operated by SEWAN SAS. The organization is based in France. You can view all IP ranges and related ASNs on the organization page.
What country is AS8399 registered in?
AS8399 is registered in France. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
