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
- Multiple-origin (MOAS) routing anomaly −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.1.0 — 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 AS15517 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) |
|---|---|---|
| 213.133.240.0/21 | AS15517, AS212865 | 2026-07-22 18:08:23 |
Network profile
Source: PeeringDB →Present at 1 internet exchange: SwissIX: Peering
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 94.78.32.0/19 | 8.2K |
0.2%
|
Netstream Holding AG | CH | — | — |
| 94.78.16.0/20 | 4.1K |
23.3%
|
Netstream Holding AG | CH | — | — |
| 62.65.128.0/21 | 2.0K |
34.8%
|
Netstream Holding AG | CH | — | — |
| 94.78.8.0/21 | 2.0K |
93.8%
|
Netstream Holding AG | CH | — | — |
| 213.133.240.0/21 | 2.0K |
97.2%
|
Netstream Holding AG | CH | Ticino | Bellinzona |
| 94.78.4.0/22 | 1.0K |
93.0%
|
Netstream Holding AG | CH | — | — |
| 62.65.138.0/23 | 512 |
9.2%
|
Netstream Holding AG | CH | — | — |
| 94.78.0.0/23 | 512 |
4.7%
|
Netstream Holding AG | CH | — | — |
| 62.65.136.0/24 | 256 |
31.3%
|
Netstream Holding AG | CH | — | — |
| 62.65.140.0/24 | 256 |
10.5%
|
Netstream Holding AG | CH | — | — |
| 62.65.152.0/24 | 256 |
98.0%
|
Netstream Holding AG | CH | — | — |
| 62.65.159.0/24 | 256 |
26.6%
|
Netstream Holding AG | CH | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS15517 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 |
|---|---|---|
| 94.78.0.0/18 | 4,536 | 2026-07-22 17:55:38 |
| 62.65.128.0/19 | 4,424 | 2026-07-22 17:55:38 |
| 213.133.240.0/21 | 3,712 | 2026-07-22 17:55:38 |
Frequently Asked Questions
What is AS15517?
AS15517 is an Autonomous System Number assigned to Netstream Holding AG. 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 AS15517 announce?
AS15517 announces 21.5K IPv4 addresses distributed across 12 routed CIDR prefixes. The network is registered in Switzerland.
Who operates AS15517?
AS15517 is operated by Netstream Holding AG. The organization is based in Switzerland. You can view all IP ranges and related ASNs on the organization page.
What country is AS15517 registered in?
AS15517 is registered in Switzerland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
