AS20555 — WIT Akademia WIT w Warszawie

AS20555 announces 2 IPv4 prefixes covering 1,536 addresses and 1 IPv6 prefixes.

About this network

The AS handle WIT is held by WIT Akademia WIT w Warszawie.

What it's used for

• The address space carries university infrastructure, evidenced by reverse DNS entries such as voices-student-net.wsisiz.edu.pl and chronicles-console2.wsisiz.edu.pl.
• The AS announces 1536 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 10 observed neighbours, a ratio consistent with an institutional access network.

Notable

• Registrants for both announced prefixes include ICM Networking Group and WIT Network Administrators, aligning with the academic holder.
• The inventory consists of two contiguous IPv4 blocks and a single IPv6 /48, reflecting a compact, internally managed estate.

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

Announced prefixes

• 213.135.44.0/22
• 213.135.48.0/23
• 2001:1a68:a::/48

Upstream networks

• AS24724 Atman Sp. z o.o.
• AS6939 Hurricane Electric LLC
• AS8664 University of Warsaw
• AS1887 PANSTWOWY INSTYTUT BADAWCZY
• AS24482 SG.GS
• AS33891 Core-Backbone GmbH
• AS201054 Stowarzyszenie e-Poludnie

Adjacent networks

• AS24724 Atman Sp. z o.o.
• AS6939 Hurricane Electric LLC
• AS8664 University of Warsaw
• AS1887 PANSTWOWY INSTYTUT BADAWCZY
• AS24482 SG.GS
• AS33891 Core-Backbone GmbH
• AS201054 Stowarzyszenie e-Poludnie

Routing security

• RPKI: 3 valid, 0 invalid and 0 not-found announcements; 3 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 3 route objects.
• Listed in as-sets: AS-ATMAN-CDN, AS-HURRICANEV6, AS-ICM-IX, AS-IPARTNERS, AS-PLIX-CONNECTED, AS-PLIX6, AS-PLNET, AS-TPIX, AS-TPIX6, AS-WSISIZ, AS1887:AS-CUST-TRANSIT, AS1887:AS-CUSTOMERS:AS20555, AS1887:AS-PEERINGS, AS1887:AS-TPNET, AS24748:AS-ATMAN6, AS24748:AS-THINX6, AS29535:AS-TPIX, AS5617:AS-AKADEMICKIE, AS5617:AS-ICM, AS5617:AS-KAMPUS_OCHOTA, AS5617:AS-PL, AS5617:AS-PL-TRANSIT, AS5617:AS-SILWEB, AS8308:AS-PEERINGS:AS15396, AS8308:AS-PEERINGS:AS8664.

Internet exchanges

• TPIX - Internet Exchange — Warsaw, Poland
• Thinx IX — Warsaw, Poland