asn.dev

Autonomous system

AS203287 CBNET NOWOGROD.NET SP. Z O.O.

Residential RIPE

IPv4 addresses 1.28K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Cybernet Poland

Poland · AI-generated

isp residential cable dsl

The AS handle CBNET is held by Cybernet Poland (NOWOGROD.NET SP. Z O.O.).

What it's used for

  • The address space carries residential access traffic, evidenced by reverse DNS entries pointing to net.hawetelekom.pl and the netname PL-NOWOGRODNET-20180423.
  • The network announces 1280 IPv4 addresses across 2 prefixes with 3 observed neighbours, a ratio consistent with a regional access provider rather than a transit hub.
  • Traffic consists of subscriber eyeballs for cable and DSL services in the Nowy Sącz region of Poland.

Notable

  • Registrants include Maciej Szewczyk and HAWE-ADMIN, with netnames PL-NOWOGRODNET-20180423 and CYBE-0246 respectively.
  • The address inventory is small and subdivided into two distinct blocks, one associated with the primary registrant and one with a different administrative entity.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS42739Hawe Telekom S.A.120
AS24482SG.GS2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-03, 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 · 1.28K addresses IPv6 0 prefixes

CountryNamePrefixes
PLPoland2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS203287
Registry name
CBNET
Registrant
mnt-pl-nowogrodnet-1
Abuse contact
abuse@nowogrod.net
Registered
2018-04-23
Last changed
2021-05-27
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS203287
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS203287

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: 451 networks and 1,853 prefixes, as published 2026-11-04. 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