Autonomous System

AS21430 WIA spol. s.r.o.

ISPActiveCzechiaRIPE

AS21430 (WIA-AS) is an ISP network operated by WIA spol. s.r.o. in Czechia, registered with RIPE. It has 64 IPv4 prefixes with 41,216 addresses and 5 IPv6 prefixes, which makes it the 4,700th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses41,216in 64 prefixes
IPv6 prefixes5≈ 7.9 × 10²⁸ addresses
Size rank#4,700of 82,200 active ASNs
Abuser scoreLow0.19% of its addresses flagged · method

Details

OrganizationWIA spol. s.r.o.
AS nameWIA-AS
Websitewia.cz
Country Czechia (CZ)
Network typeISP
RegistryRIPE
Abuse contactabuse@wia.cz
Registered2001-12-07
Last updated2026-08-13

IPv4 prefixes

64 prefixes · 41,216 addresses
NetworkAddressesFirst – last address
80.250.0.0/198,19280.250.0.0 – 80.250.31.255
31.7.240.0/212,04831.7.240.0 – 31.7.247.255
77.78.80.0/212,04877.78.80.0 – 77.78.87.255
83.136.200.0/212,04883.136.200.0 – 83.136.207.255
77.78.64.0/221,02477.78.64.0 – 77.78.67.255
81.0.200.0/221,02481.0.200.0 – 81.0.203.255
82.208.0.0/221,02482.208.0.0 – 82.208.3.255
82.208.52.0/221,02482.208.52.0 – 82.208.55.255
147.161.28.0/221,024147.161.28.0 – 147.161.31.255
185.33.136.0/221,024185.33.136.0 – 185.33.139.255
185.161.240.0/221,024185.161.240.0 – 185.161.243.255
77.78.68.0/2351277.78.68.0 – 77.78.69.255
77.78.74.0/2351277.78.74.0 – 77.78.75.255
77.78.88.0/2351277.78.88.0 – 77.78.89.255
77.78.92.0/2351277.78.92.0 – 77.78.93.255
81.0.196.0/2351281.0.196.0 – 81.0.197.255
81.0.204.0/2351281.0.204.0 – 81.0.205.255
81.0.210.0/2351281.0.210.0 – 81.0.211.255
81.0.222.0/2351281.0.222.0 – 81.0.223.255
81.0.244.0/2351281.0.244.0 – 81.0.245.255
81.0.252.0/2351281.0.252.0 – 81.0.253.255
82.208.24.0/2351282.208.24.0 – 82.208.25.255
82.208.30.0/2351282.208.30.0 – 82.208.31.255
82.208.36.0/2351282.208.36.0 – 82.208.37.255
82.208.42.0/2351282.208.42.0 – 82.208.43.255
The 25 largest of 64. The API and the database have all of them.

IPv6 prefixes

5 prefixes
  • 2a01:6400::/32
  • 2001:67c:aa4::/48
  • 2001:67c:15a0::/48
  • 2001:67c:15a1::/48
  • 2a14:a480::/48

Query AS21430 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=AS21430&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS21430, with or without a key:

curl "https://api.ipapi.is/?q=80.250.0.1"

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