AS20723 — MGI CZ.MGI autonomous system, Czech Republic

Network type: residential

AS20723 announces 7 IPv4 prefixes covering 16,384 addresses and 1 IPv6 prefixes.

About this network

The AS handle MGI CZ.MGI is held by Avonet, s.r.o.

What it's used for

• The address space carries residential customer traffic, evidenced by reverse DNS entries such as cust.avonet.cz and gw-xdsl-1-cips-4-cust-3-1.avonet.cz.
• With 16,384 IPv4 addresses announced across 7 prefixes and 19 observed neighbours, the ratio indicates an access network providing connectivity to end-users rather than a transit provider.

Notable

• Registrants for the majority of prefixes are listed as AVONET, s.r.o., aligning with the AS holder, while one prefix (185.111.96.0/22) is registered to NOC Manager; ICT NWT s.r.o..
• The address inventory consists of seven IPv4 blocks ranging from /20 to /22 sizes and a single IPv6 /29 prefix, all located in Czechia.

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

Announced prefixes

• 79.170.248.0/21
• 131.117.208.0/21
• 178.20.136.0/21
• 185.84.232.0/22
• 185.111.96.0/22
• 217.112.160.0/20
• 217.115.240.0/20
• 2a00:6500::/29

Upstream networks

• AS3257 GTT Communications Inc.
• AS30058 FDCservers.net
• AS47232 ISP Alliance a.s.
• AS6939 Hurricane Electric LLC
• AS16019 Vodafone Czech Republic a.s.
• AS24482 SG.GS
• AS29504 Freenet Liberec, z.s.
• AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH

Downstream networks

• AS204405 Durnet.cz sro

Adjacent networks

• AS3257 GTT Communications Inc.
• AS30058 FDCservers.net
• AS47232 ISP Alliance a.s.
• AS6939 Hurricane Electric LLC
• AS204405 Durnet.cz sro
• AS2852 CESNET z.s.p.o.
• AS16019 Vodafone Czech Republic a.s.
• AS24482 SG.GS
• AS29504 Freenet Liberec, z.s.
• AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH

Internet exchanges

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