AS39761 — ABAK

AS39761 announces 6 IPv4 prefixes covering 10,240 addresses and 2 IPv6 prefixes.

About this network

The AS handle ABAK is held by ABAK, Co.Ltd.

What it's used for

• The address space carries residential broadband traffic, evidenced by reverse DNS entries pointing to ujezd.net (e.g., unassigned-81-90-247-255.ujezd.net).
• The network announces 10,240 IPv4 addresses across 6 prefixes and 2 IPv6 prefixes, with only 3 observed neighbours, indicating a local access provider rather than a transit hub.
• Traffic consists of subscriber eyeballs for residential internet access in the Czech Republic.

Notable

• All registrants for the announced prefixes are listed as ABAK, Co.Ltd., matching the AS holder.
• The address inventory includes blocks allocated in 2006, 2009, and 2019, showing gradual expansion of the network.

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

Announced prefixes

• 45.11.132.0/22
• 45.14.156.0/22
• 45.83.212.0/22
• 45.87.12.0/22
• 81.90.240.0/20
• 84.246.160.0/21
• 2a00:1268::/32
• 2a0e:6d00::/29

Upstream networks

• AS35236 UVT Internet s.r.o.
• AS21430 WIA spol. s.r.o.

Downstream networks

• AS57472 JR-NET, s.r.o.

Adjacent networks

• AS35236 UVT Internet s.r.o.
• AS57472 JR-NET, s.r.o.
• AS21430 WIA spol. s.r.o.