asn.dev

Autonomous system

AS198121 DNS4EU

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly CZ
Exchanges 1 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Whalebone

Czechia · AI-generated

dns security eu resolver

DNS4EU is operated by Whalebone, s.r.o.

What it's used for

  • The space carries DNS resolution services, evidenced by the netname CZ-WHALEBONEDNS-20050512 and the operator's role as the live offering of the EU-initiated DNS4EU programme.
  • The AS announces 256 IPv4 addresses and 1 IPv6 prefix, with 5 observed neighbours, indicating a small, focused infrastructure footprint rather than a large access or transit network.
  • Traffic from this AS consists of DNS queries and responses for the free public resolver service provided to European individuals, supporting DoH, DoT, and DNSSEC.

Notable

  • The registrant Whalebone, s.r.o. matches the AS holder, confirming direct ownership of the address space.
  • Whalebone was appointed in 2022 to lead the DNS4EU initiative, transitioning it from a European Commission strategic project into a live security ecosystem.
  • The inventory consists of a single /24 IPv4 block and a /48 IPv6 block, reflecting a compact, dedicated infrastructure for DNS operations.

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 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
NetIX GreeceThessaloniki, Greece185.0.28.34

Transit providers

3 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS60068Datacamp Limited74
AS49544i3D.net B.V32
AS6939Hurricane Electric LLC21

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, 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 2 prefixes

CountryNamePrefixes
CZCzechia3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS198121
Registry name
DNS4EU
Registrant
lir-cz-whalebonedns-1-MNT
Abuse contact
abuse@whalebone.io
Registered
2023-06-14
Last changed
2023-06-14
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
DNS4EU
Scope
Not Disclosed
Traffic ratio
Not Disclosed

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
6 authorising AS198121
ASPA
no ASPA record
IRR
67% registered · 2 of 3 announcements
Route objects
3 naming AS198121

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: 447 networks and 1,852 prefixes, as published 2026-10-27. 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