asn.dev

Autonomous system

AS199978 NETCOM

Residential RIPE

IPv4 addresses 1.54K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 0 recorded by PCH
Upstreams 5 1 downstream
Flagged prefixes 0 none

Summary

NETCOM Computers

Poland · AI-generated

residential isp regional cable

NETCOM is operated by NETCOM Computers, a regional internet service provider based in Kalisz, Poland.

What it's used for

  • The address space carries residential broadband traffic, evidenced by reverse DNS entries such as 255.pool-41.szybki-internet.eu and 254.pool-42.szybki-internet.eu, which reference the operator's "szybki-internet" (fast internet) service.
  • The AS announces 1536 IPv4 addresses across 2 prefixes (185.155.40.0/22 and 91.231.74.0/23) while maintaining 8 observed neighbours, a ratio consistent with an access network providing last-mile connectivity rather than transit.
  • Traffic from this AS consists of subscriber eyeballs accessing the internet via cable or DSL connections in the Kalisz region, as indicated by the operator's classification as a Cable/DSL/ISP.

Notable

  • Registrant data for both announced prefixes (PL-NETCOM2-20160607 and PL-NETCOM2) aligns with the AS holder, Robert Jerzy Opielinski trading as NETCOM COMPUTERS.
  • The address inventory is compact, consisting of two contiguous blocks in Poland, with no IPv6 prefixes currently announced.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

5 upstream, 1 downstream and 6 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS62081Stowarzyszenie e-Poludnie90
AS50607Stowarzyszenie e-Poludnie30
AS201054Stowarzyszenie e-Poludnie8
AS212261Stowarzyszenie e-Poludnie6
AS24482SG.GS2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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 2 prefixes · 1.54K addresses IPv6 0 prefixes

CountryNamePrefixes
PLPoland2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS199978
Registry name
NETCOM
Registrant
Robert Jerzy Opielinski trading as NETCOM COMPUTERS
Abuse contact
noc@szybki-internet.eu
Registered
2013-11-15
Last changed
2019-10-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
67% valid · 2 valid, 0 with no ROA 1 RPKI-invalid
ROAs
3 authorising AS199978
ASPA
no ASPA record
IRR
67% registered · 2 of 3 announcements 1 other origin
Route objects
4 naming AS199978

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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: 448 networks and 1,849 prefixes, as published 2026-10-29. 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