AS50625 — KROSOFT-AS Krosnienskie Centrum Informatyczne "KROSOFT"

AS50625 announces 8 IPv4 prefixes covering 9,472 addresses and 1 IPv6 prefixes.

About this network

The AS handle KROSOFT-AS is held by Krosnienskie Centrum Informatyczne "KROSOFT".

What it's used for

• The address space carries a mix of local ISP and business traffic, evidenced by netnames such as KCI-KROSOFT-NET, Polanka-net, COMPSERWIS-NET, SKY-NET, and WIDGETNET.
• The AS announces 12032 IPv4 addresses across 10 prefixes and 1 IPv6 prefix, while maintaining 16 observed neighbours; this ratio of address space to peering partners indicates an access network serving local subscribers and businesses.
• Traffic from this AS consists of residential broadband users and small business endpoints in the Krosno region of Poland, as indicated by the krosoft.pl and skynt.pl reverse DNS entries.

Notable

• Registrants vary across the inventory, including POLANKA.NET PIOTR GRZEBIEN, COMP-SERWIS SP. Z O.O., SKY-NET Sp. z o.o., WIDGET-NET Lukasz Nycz, and ABUSE EXATEL, alongside the primary holder Krosnienskie Centrum Informatyczne "KROSOFT".
• The inventory includes prefixes registered to ABUSE EXATEL with the netname KROSOFT-NET, suggesting a relationship or lease with Exatel.
• The address inventory is fragmented into multiple /21, /22, /23, and /24 blocks, reflecting a collection of smaller local networks rather than a single contiguous allocation.

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

Announced prefixes

• 62.182.144.0/21
• 82.177.204.0/24
• 91.230.76.0/23
• 91.232.192.0/22
• 94.232.216.0/21
• 178.212.160.0/21
• 192.162.172.0/22
• 194.183.60.0/23
• 2a02:c47::/48

Upstream networks

• AS5617 Orange Polska Spolka Akcyjna
• AS20804 Exatel S.A.
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS

Downstream networks

• AS60795 PAWEL SCIBOR ONLINE NET
• AS57121 Piotr Bukowczyk trading as IT Systematic Group

Adjacent networks

• AS5617 Orange Polska Spolka Akcyjna
• AS20804 Exatel S.A.
• AS6939 Hurricane Electric LLC
• AS60795 PAWEL SCIBOR ONLINE NET
• AS57121 Piotr Bukowczyk trading as IT Systematic Group
• AS24482 SG.GS

Routing security

• RPKI: 11 valid, 0 invalid and 1 not-found announcements; 11 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 19 route objects.
• Listed in as-sets: AS-196883, AS-50625, AS-ATRATO:AS-PEERS, AS-CPOP, AS-EXATEL-INT, AS-EXATEL-PL, AS-KIKE-LOCAL, AS-MULTIMEDIA, AS-PLIX-CONNECTED, AS-PLIX6, AS-SET-52195, AS-TPIX, AS-VIRTUAOPERATOR, AS21021:AS-MULTIMEDIA-LEVEL3, AS29535:AS-MIX2, AS29535:AS-TPIX, AS5617:AS-PL, AS5617:AS-WORLD-TRANSIT.

Internet exchanges

• TPIX - Internet Exchange — Warsaw, Poland
• Equinix Internet Exchange Warsaw — Warsaw, Poland