asn.dev

Autonomous system

AS57389 ZT-HU ZNET Telekom Zrt

Unclassified RIPE Cable/DSL/ISP

IPv4 addresses 17.41K 17 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly HU
Exchanges 0 recorded by PCH
Upstreams 1 1 downstream
Flagged prefixes 0 none

Summary

ZNET Telekom

Hungary · AI-generated

isp residential cable dsl

The AS handle ZT-HU is held by ZNET Telekom Zrt.

What it's used for

  • The address space carries residential and business access traffic, evidenced by netnames such as HU-ZNETTELEKOM-20090309 and reverse DNS entries like 81.16.196.0.zt.hu.
  • The AS announces 17,408 IPv4 addresses across 17 prefixes and 1 IPv6 prefix, with only 2 observed neighbours, indicating a local access network rather than a transit provider.
  • Traffic from this AS consists of subscriber eyeballs for cable and DSL services in Hungary, as ZNET Telekom operates as a regional ISP.

Notable

  • All registrants for the largest prefixes are ZNET Telekom Zrt, matching the AS holder.
  • The address inventory is finely subdivided into multiple /22 and /23 blocks, consistent with a corporate estate segmented by service area or acquisition date.

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

1 upstream, 1 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS41206United Telecom Zartkoruen Mukodo Reszvenytarsasag1,566

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 17 prefixes · 17.41K addresses IPv6 1 prefixes

CountryNamePrefixes
HUHungary18

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS57389
Registry name
ZT-HU
Registrant
hu-znettelekom-1-mnt
Abuse contact
abuse@zt.hu
Registered
2011-10-14
Last changed
2019-07-26
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
ZNET Telekom Zrt.
Also known as
ZNET Telekom
Network type
Cable/DSL/ISP
Scope
Europe
Traffic ratio
Mostly Outbound
Peering policy
Open
IRR as-set
AS-ZNETTELEKOM
Facilities
2 facilities
Website
http://zt.hu

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 · 27 valid, 0 with no ROA
ROAs
25 authorising AS57389
ASPA
no ASPA record
IRR
100% registered · 27 of 27 announcements
Route objects
31 naming AS57389

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: 448 networks and 1,851 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