asn.dev

Autonomous system

AS204559 PROMONOTES

Unclassified RIPE

IPv4 addresses 256 1 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

PromoNotes Sp. z o.o.

Poland · AI-generated

business corporate poland

The AS handle PROMONOTES is held by PromoNotes Sp. z o.o., a Polish stationery manufacturer based in Suchy Las.

What it's used for

  • The address space carries corporate infrastructure, evidenced by the netname PROMONOTES and reverse DNS entries pointing to hti.pl (e.g., 64.243.235.178-rev.hti.pl).
  • The network announces a single IPv4 prefix, 178.235.243.0/24, comprising 256 addresses, with 0 IPv6 prefixes.
  • With only 2 observed neighbours, the low neighbour count relative to the address block indicates an internal corporate estate rather than a transit or access network.
  • Traffic from this AS consists of office workers and internal business endpoints for the stationery manufacturing company.

Notable

  • Registrants include Horyzont IT Department, PROMONOTES Sp. z o.o., and Promonotes Abuse, which align with the announcer and indicate internal IT management.
  • The address inventory consists of a single contiguous /24 block, typical for a small-to-medium enterprise site.

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
AS20552Horyzont Technologie Internetowe sp.z.o.o.45
AS12912T-Mobile Polska S.A.15

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-25, 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 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
PLPoland1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS204559
Registry name
PROMONOTES
Registrant
HORYZONT-MNT
Abuse contact
abuse@horyzont.net
Registered
2018-02-16
Last changed
2020-11-16
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS204559
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS204559

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: 443 networks and 1,779 prefixes, as published 2026-10-24. 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