Autonomous System
AS15517 Netstream Holding AG
ISPActiveSwitzerlandRIPE
AS15517 (NETSTREAM-CH) is an ISP network operated by Netstream Holding AG in Switzerland, registered with RIPE. It has 3 IPv4 prefixes with 26,624 addresses and 1 IPv6 prefix, which makes it the 5,843rd largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses26,624in 3 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#5,843of 82,200 active ASNs
Details
OrganizationNetstream Holding AG
AS nameNETSTREAM-CH
Websitenetstream.ch
Country Switzerland (CH)
Network typeISP
RegistryRIPE
Abuse contactabuse@netstream.ch
Registered2002-07-25
Last updated2026-04-05
IPv4 prefixes
3 prefixes · 26,624 addresses| Network | Addresses | First – last address |
|---|---|---|
| 94.78.0.0/18 | 16,384 | 94.78.0.0 – 94.78.63.255 |
| 62.65.128.0/19 | 8,192 | 62.65.128.0 – 62.65.159.255 |
| 213.133.240.0/21 | 2,048 | 213.133.240.0 – 213.133.247.255 |
94.78.0.0/18 62.65.128.0/19 213.133.240.0/21
IPv6 prefixes
1 prefix- 2a01:330::/32
2a01:330::/32
Query AS15517 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS15517&key=YOUR_API_KEY"Any address in its prefixes resolves to AS15517, with or without a key:
curl "https://api.ipapi.is/?q=94.78.0.1"Largest networks in Switzerland
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