Autonomous System

AS30900 Sternforth Ltd. trading as WebWorld

HostingActiveIrelandRIPE

AS30900 (WEBWORLD-AS) is a hosting network operated by Sternforth Ltd. trading as WebWorld in Ireland, registered with RIPE. It has 34 IPv4 prefixes with 16,640 addresses and 2 IPv6 prefixes, which makes it the 7,651st largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses16,640in 34 prefixes
IPv6 prefixes2≈ 7.9 × 10²⁸ addresses
Size rank#7,651of 82,200 active ASNs
Abuser scoreHigh5.49% of its addresses flagged · method

Details

OrganizationSternforth Ltd. trading as WebWorld
AS nameWEBWORLD-AS
Websitewebworld.ie
Country Ireland (IE)
Network typeHosting
RegistryRIPE
Abuse contactlir@webworld.ie
Registered2004-01-08
Last updated2025-11-05

IPv4 prefixes

34 prefixes · 16,640 addresses
NetworkAddressesFirst – last address
217.115.112.0/204,096217.115.112.0 – 217.115.127.255
83.138.8.0/212,04883.138.8.0 – 83.138.15.255
185.108.128.0/221,024185.108.128.0 – 185.108.131.255
185.152.4.0/221,024185.152.4.0 – 185.152.7.255
185.176.128.0/221,024185.176.128.0 – 185.176.131.255
77.47.213.0/2425677.47.213.0 – 77.47.213.255
82.21.218.0/2425682.21.218.0 – 82.21.218.255
82.21.248.0/2425682.21.248.0 – 82.21.248.255
82.22.214.0/2425682.22.214.0 – 82.22.214.255
82.22.223.0/2425682.22.223.0 – 82.22.223.255
82.22.248.0/2425682.22.248.0 – 82.22.248.255
82.23.202.0/2425682.23.202.0 – 82.23.202.255
82.23.225.0/2425682.23.225.0 – 82.23.225.255
82.23.238.0/2425682.23.238.0 – 82.23.238.255
82.24.221.0/2425682.24.221.0 – 82.24.221.255
82.24.237.0/2425682.24.237.0 – 82.24.237.255
82.24.248.0/2425682.24.248.0 – 82.24.248.255
82.25.213.0/2425682.25.213.0 – 82.25.213.255
82.25.215.0/2425682.25.215.0 – 82.25.215.255
82.25.235.0/2425682.25.235.0 – 82.25.235.255
82.25.248.0/2425682.25.248.0 – 82.25.248.255
82.26.248.0/2425682.26.248.0 – 82.26.248.255
82.26.249.0/2425682.26.249.0 – 82.26.249.255
82.27.249.0/2425682.27.249.0 – 82.27.249.255
82.29.214.0/2425682.29.214.0 – 82.29.214.255
The 25 largest of 34. The API and the database have all of them.

IPv6 prefixes

2 prefixes
  • 2a01:6280::/32
  • 2a11:840:27::/48

Query AS30900 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=AS30900&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS30900, with or without a key:

curl "https://api.ipapi.is/?q=217.115.112.1"

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