asn.dev

Autonomous system

AS50625 KROSOFT-AS

Unclassified RIPE

IPv4 addresses 9.47K 8 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 2 recorded by PCH
Upstreams 4 3 downstream
Flagged prefixes 0 none

Summary

Krosnienskie Centrum Informatyczne "KROSOFT

Poland · AI-generated

isp residential business poland

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. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
TPIX - Internet ExchangeWarsaw, Poland195.149.233.160
Equinix Internet Exchange WarsawWarsaw, Poland195.182.218.247

Transit providers

4 upstream, 3 downstream and 9 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS5617Orange Polska Spolka Akcyjna302
AS20804Exatel S.A.263
AS6939Hurricane Electric LLC107
AS24482SG.GS11

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 8 prefixes · 9.47K addresses IPv6 1 prefixes

CountryNamePrefixes
PLPoland9

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS50625
Registry name
KROSOFT-AS
Registrant
LEON-MNT
Abuse contact
bok@krosoft.pl
Registered
2010-02-22
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
92% valid · 11 valid, 1 with no ROA
ROAs
11 authorising AS50625
ASPA
no ASPA record
IRR
100% registered · 12 of 12 announcements
Route objects
19 naming AS50625

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,784 prefixes, as published 2026-10-19. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check