AS57643 — AIRCITY-NET AirCity Krzysztof Janukowicz

AS57643 announces 6 IPv4 prefixes covering 5,120 addresses and 0 IPv6 prefixes.

About this network

The AS handle AIRCITY-NET is held by AirCity Krzysztof Janukowicz.

What it's used for

• The address space carries residential and business internet access, evidenced by reverse DNS entries such as 91-235-21-0.ingate.pl and 185-174-121-0.ingate.pl.
• The network announces 5120 IPv4 addresses across 6 prefixes and maintains 2 observed neighbours, a ratio indicative of an access network providing connectivity to end-users rather than transit.
• Traffic from this AS consists of subscriber eyeballs and local business endpoints within the Poznan region of Poland.

Notable

• Registrants for the announced prefixes include AirCity Krzysztof Janukowicz, Horyzont Technologie Internetowe sp.z.o.o., AXEPRIM TOMASZ KUEHN, and ENTERMA PROSTA S.A., indicating a mix of owned and leased or historically allocated space.
• The inventory consists of six distinct IPv4 blocks, including /22 and /23 prefixes, with no IPv6 prefixes in the inventory.

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

Announced prefixes

• 91.207.166.0/23
• 91.235.20.0/22
• 91.235.24.0/23
• 185.174.120.0/22
• 185.188.164.0/22
• 194.28.40.0/22

Upstream networks

• AS20552 Horyzont Technologie Internetowe sp.z.o.o.
• AS6939 Hurricane Electric LLC

Adjacent networks

• AS20552 Horyzont Technologie Internetowe sp.z.o.o.
• AS6939 Hurricane Electric LLC

Routing security

• RPKI: 4 valid, 0 invalid and 2 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 6 route objects.
• Listed in as-sets: AS-HTI-CUSTOMERS, AS-HTI2LEVEL3, AS-HTI2RETN, AS-HTI2VIRTUAOPERATOR, AS-MAVERICK, AS-PIX, AS-RETN-ACTUAL-V4, AS5617:AS-PL.