AS21430 — WIA-AS

AS21430 announces 64 IPv4 prefixes covering 41,216 addresses and 4 IPv6 prefixes.

About this network

The AS handle WIA-AS is held by WIA spol. s.r.o.

What it's used for

• The address space carries residential and business access traffic, evidenced by reverse DNS entries such as pra-strah-trib-v62-wia.cz, r.lucerna.cz, and vpn-koncentrator.wia.cz.
• With 41,216 IPv4 addresses announced across 64 prefixes and 49 observed neighbours, the ratio indicates an access network providing connectivity to end-users rather than a transit provider.

Notable

• All registrants in the RDAP sample are consistent with the announcer, listing WIA spol. s.r.o. for every prefix.
• The address inventory is finely subdivided into numerous /22 and /23 blocks, reflecting site-by-site segmentation typical of a regional ISP managing distinct customer segments or geographic areas.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 31.7.240.0/21
• 77.78.64.0/22
• 77.78.68.0/23
• 77.78.74.0/23
• 77.78.80.0/21
• 77.78.88.0/23
• 77.78.91.0/24
• 77.78.92.0/23
• 77.78.122.0/24
• 80.250.0.0/19
• 81.0.196.0/23
• 81.0.198.0/24
• 81.0.200.0/22
• 81.0.204.0/23
• 81.0.210.0/23
• 81.0.215.0/24
• 81.0.216.0/24
• 81.0.222.0/23
• 81.0.224.0/24
• 81.0.227.0/24
• 81.0.229.0/24
• 81.0.244.0/23
• 81.0.251.0/24
• 81.0.252.0/23
• 82.208.0.0/22
• 82.208.13.0/24
• 82.208.15.0/24
• 82.208.19.0/24
• 82.208.24.0/23
• 82.208.30.0/23
• 82.208.36.0/23
• 82.208.38.0/24
• 82.208.42.0/23
• 82.208.45.0/24
• 82.208.51.0/24
• 82.208.52.0/22
• 82.208.57.0/24
• 82.208.59.0/24
• 83.136.200.0/21
• 85.209.124.0/23
• 85.209.126.0/24
• 85.239.224.0/23
• 85.239.226.0/24
• 85.239.228.0/23
• 85.239.251.0/24
• 85.239.254.0/23
• 91.234.162.0/23
• 109.123.200.0/23
• 109.123.204.0/24
• 109.123.212.0/23
• 109.123.226.0/24
• 147.161.28.0/22
• 185.33.136.0/22
• 185.161.240.0/22
• 217.11.226.0/24
• 217.11.231.0/24
• 217.11.234.0/24
• 217.11.237.0/24
• 217.11.238.0/23
• 217.11.240.0/23
• 217.11.244.0/24
• 217.11.250.0/24
• 217.11.252.0/23
• 217.11.255.0/24
• 2001:67c:aa4::/48
• 2001:67c:15a0::/47
• 2a01:6400::/32
• 2a14:a480::/48

Upstream networks

• AS1299 Arelion Sweden AB
• AS3491 PCCW Global (HK) Ltd.
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS39392 SH.cz s.r.o.
• AS29504 Freenet Liberec, z.s.
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS57463 NetIX Communications JSC
• AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
• AS8218 Zayo Infrastructure France SA
• AS47200 NIX.CZ z.s.p.o.

Downstream networks

• AS203376 Mailkit s.r.o.
• AS33943 Quadruple a.s.
• AS15614 Dragon Internet a.s.
• AS204183 Omnivery s.r.o.
• AS209369 The Cloud Provider s.r.o.
• AS12608 IGLG Network CZ s.r.o.
• AS42189 Druzstvo EUROSIGNAL
• AS48451 Prazska energetika, a.s.
• AS39761 ABAK, Co.Ltd.

Adjacent networks

• AS1299 Arelion Sweden AB
• AS3491 PCCW Global (HK) Ltd.
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS39392 SH.cz s.r.o.
• AS203376 Mailkit s.r.o.
• AS15614 Dragon Internet a.s.
• AS33943 Quadruple a.s.
• AS24482 SG.GS
• AS29504 Freenet Liberec, z.s.
• AS37721 Virtual Technologies & Solutions
• AS57463 NetIX Communications JSC
• AS209369 The Cloud Provider s.r.o.
• AS204183 Omnivery s.r.o.
• AS39761 ABAK, Co.Ltd.
• AS12608 IGLG Network CZ s.r.o.
• AS42189 Druzstvo EUROSIGNAL
• AS48451 Prazska energetika, a.s.
• AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
• AS8218 Zayo Infrastructure France SA
• AS47200 NIX.CZ z.s.p.o.

Internet exchanges

• Peering.cz — Prague, Czech Republic
• NIX.CZ - Neutral Internet eXchange for the Czech Republic — Prague, Czech Republic