asn.dev

Autonomous system

AS42981 RES-

Unclassified RIPE Enterprise

IPv4 addresses 2.30K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 2 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

RES.PL

Poland · AI-generated

residential isp poland access

The AS handle RES- is held by RES.PL Kosiorowski, Wisniowski sp.j.

What it's used for

  • The address space carries residential subscriber traffic, evidenced by reverse DNS entries such as ip-91.196.10.254.res.pl and ip-185.153.37.0.res.pl.
  • The network announces 2304 IPv4 addresses across 3 prefixes with 8 observed neighbours, a ratio consistent with an access or eyeball network rather than a transit provider.
  • Traffic from this AS consists of residential internet users in Poland, as RES.PL operates as a regional internet service provider.

Notable

  • Registrants for the two largest prefixes (91.196.8.0/22 and 185.153.36.0/22) are listed as Pawel Kosiorowski trading as RES.PL Kosiorowski, Wisniowski sp.j., matching the AS holder.
  • The smallest prefix, 194.110.238.0/24, is registered to InFast Sp. z o.o. under the netname PL-INFAST, indicating a distinct ownership or leasing arrangement for this specific block.
  • The inventory consists of three IPv4 prefixes with no IPv6 announcements, reflecting a purely IPv4-based address estate.

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, Poland195.149.233.66
Equinix Internet Exchange WarsawWarsaw, Poland195.182.218.82

Transit providers

4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS20804Exatel S.A.90
AS50607Stowarzyszenie e-Poludnie63
AS6939Hurricane Electric LLC27
AS24482SG.GS3

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 3 prefixes · 2.30K addresses IPv6 0 prefixes

CountryNamePrefixes
PLPoland3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS42981
Registry name
RES-PL
Registrant
Pawel Kosiorowski trading as RES.PL Kosiorowski, Wisniowski sp.j.
Abuse contact
abuse@res.pl
Registered
2007-05-21
Last changed
2018-09-04
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
RES.PL
Also known as
RES.PL
Network type
Enterprise
Scope
Regional
Traffic ratio
Balanced
Peering policy
Open
Present at
4 exchanges
Website
http://res.pl

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 3 valid, 0 with no ROA
ROAs
3 authorising AS42981
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
12 naming AS42981

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 1,783 prefixes, as published 2026-10-20. 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