AS203944
NTT Luxembourg PSF S.A.
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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 185.118.216.0/22 | 1.0K |
0.7%
|
NTT Luxembourg PSF S.A. | LU | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS203944 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 |
|---|---|---|
| 185.118.219.0/24 | 8,874 | 2026-08-05 21:22:45 |
| 185.118.216.0/22 | 7,839 | 2026-08-05 21:20:07 |
| 185.118.216.0/23 | 6,310 | 2026-08-05 21:22:45 |
| 185.118.218.0/23 | 6,306 | 2026-08-05 21:26:31 |
| 185.118.217.0/24 | 6,273 | 2026-08-05 21:22:49 |
Frequently Asked Questions
What is AS203944?
AS203944 is an Autonomous System Number assigned to NTT Luxembourg PSF S.A.. 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 AS203944 announce?
AS203944 announces 1.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Luxembourg.
Who operates AS203944?
AS203944 is operated by NTT Luxembourg PSF S.A.. The organization is based in Luxembourg. You can view all IP ranges and related ASNs on the organization page.
What country is AS203944 registered in?
AS203944 is registered in Luxembourg. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
