Autonomous System

AS25291 SysEleven GmbH

HostingActiveGermanyRIPE

AS25291 (SYSELEVEN) is a hosting network operated by SysEleven GmbH in Germany, registered with RIPE. It has 39 IPv4 prefixes with 44,800 addresses and 14 IPv6 prefixes, which makes it the 4,549th largest of 82,558 active autonomous systems by IPv4 space.

IPv4 addresses44,800in 39 prefixes
IPv6 prefixes14≈ 1.3 × 10²⁹ addresses
Size rank#4,549of 82,558 active ASNs
Abuser scoreVery Low0.01% of its addresses flagged · method

Details

OrganizationSysEleven GmbH · hosting provider profile
AS nameSYSELEVEN
Websitesyseleven.de
Country Germany (DE)
Network typeHosting
RegistryRIPE
Abuse contactripe-abuse@syseleven.de
Registered2009-12-07
Last updated2026-08-07

IPv4 prefixes

39 prefixes · 44,800 addresses
NetworkAddressesFirst – last address
195.192.128.0/1816,384195.192.128.0 – 195.192.191.255
37.44.0.0/212,04837.44.0.0 – 37.44.7.255
37.49.152.0/212,04837.49.152.0 – 37.49.159.255
37.123.104.0/212,04837.123.104.0 – 37.123.111.255
77.247.80.0/212,04877.247.80.0 – 77.247.87.255
109.68.224.0/212,048109.68.224.0 – 109.68.231.255
151.252.40.0/212,048151.252.40.0 – 151.252.47.255
176.74.56.0/212,048176.74.56.0 – 176.74.63.255
185.56.128.0/212,048185.56.128.0 – 185.56.135.255
195.192.128.0/212,048195.192.128.0 – 195.192.135.255
147.93.208.0/221,024147.93.208.0 – 147.93.211.255
185.46.136.0/221,024185.46.136.0 – 185.46.139.255
185.54.232.0/221,024185.54.232.0 – 185.54.235.255
185.56.104.0/23512185.56.104.0 – 185.56.105.255
31.99.199.0/2425631.99.199.0 – 31.99.199.255
37.44.1.0/2425637.44.1.0 – 37.44.1.255
37.49.152.0/2425637.49.152.0 – 37.49.152.255
37.49.153.0/2425637.49.153.0 – 37.49.153.255
37.49.159.0/2425637.49.159.0 – 37.49.159.255
37.123.106.0/2425637.123.106.0 – 37.123.106.255
37.123.108.0/2425637.123.108.0 – 37.123.108.255
37.123.109.0/2425637.123.109.0 – 37.123.109.255
77.247.81.0/2425677.247.81.0 – 77.247.81.255
77.247.82.0/2425677.247.82.0 – 77.247.82.255
77.247.84.0/2425677.247.84.0 – 77.247.84.255
The 25 largest of 39. The API and the database have all of them.

IPv6 prefixes

14 prefixes
  • 2a00:13c8::/32
  • 2a00:7fc0::/33
  • 2a04:d480::/38
  • 2a04:d480:400::/38
  • 2a04:d480:800::/38
  • 2a04:d480:2400::/38
  • 2a04:d480:2c00::/38
  • 2a04:d480:4400::/38
  • 2a04:d480:4800::/38
  • 2a00:13c8:f5::/48
  • 2a04:d480:4400::/48
  • 2a04:d480:4402::/48
  • 2a04:d480:4800::/48
  • 2a04:d480:4802::/48

Query AS25291 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=AS25291&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS25291, with or without a key:

curl "https://api.ipapi.is/?q=195.192.128.1"

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