Autonomous System

AS41230 ASK4 Limited

ISPActiveUnited KingdomRIPE

AS41230 (ASK4) is an ISP network operated by ASK4 Limited in United Kingdom, registered with RIPE. It has 14 IPv4 prefixes with 89,344 addresses and 7 IPv6 prefixes, which makes it the 2,493rd largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses89,344in 14 prefixes
IPv6 prefixes7≈ 4.4 × 10³⁰ addresses
Size rank#2,493of 82,200 active ASNs
Abuser scoreVery Low0.04% of its addresses flagged · method

Details

OrganizationASK4 Limited
AS nameASK4
Websiteask4.com
Country United Kingdom (GB)
Network typeISP
RegistryRIPE
Abuse contactabuse@ask4.com
Registered2006-07-05
Last updated2024-03-07

IPv4 prefixes

14 prefixes · 89,344 addresses
NetworkAddressesFirst – last address
31.205.0.0/1665,53631.205.0.0 – 31.205.255.255
213.143.0.0/198,192213.143.0.0 – 213.143.31.255
78.109.176.0/204,09678.109.176.0 – 78.109.191.255
81.23.48.0/204,09681.23.48.0 – 81.23.63.255
45.81.120.0/221,02445.81.120.0 – 45.81.123.255
45.154.248.0/221,02445.154.248.0 – 45.154.251.255
185.134.128.0/221,024185.134.128.0 – 185.134.131.255
185.134.136.0/221,024185.134.136.0 – 185.134.139.255
185.134.144.0/221,024185.134.144.0 – 185.134.147.255
185.198.228.0/221,024185.198.228.0 – 185.198.231.255
185.134.136.0/23512185.134.136.0 – 185.134.137.255
176.119.145.0/24256176.119.145.0 – 176.119.145.255
185.134.138.0/24256185.134.138.0 – 185.134.138.255
185.134.139.0/24256185.134.139.0 – 185.134.139.255

IPv6 prefixes

7 prefixes
  • 2a00:1a10::/29
  • 2a07:c300::/29
  • 2a0e:2a40::/29
  • 2a0e:2ac0::/29
  • 2a0e:5680::/29
  • 2a0f:dd00::/29
  • 2a10:d00::/29

Query AS41230 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=AS41230&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS41230, with or without a key:

curl "https://api.ipapi.is/?q=31.205.0.1"

Largest networks in United Kingdom