asn.dev

Autonomous system

AS61978 IRIDIS

Hosting RIPE

IPv4 addresses 512 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly GB
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Iridis

United Kingdom · AI-generated

hosting web email uk

IRIDIS is operated by York UK Hosting Ltd.

What it's used for

  • The space carries web and email hosting infrastructure, evidenced by the netname YORKNETWORKS and the registrant York UK Hosting Ltd.
  • The AS announces 512 IPv4 addresses within a single /23 prefix and one IPv6 /48 prefix, with 2 observed neighbours, indicating a small-scale hosting provider rather than a transit or large access network.
  • Traffic from this AS consists of hosted websites, email services, and associated web/API endpoints for customers using Iridis's UK-based hosting solutions.

Notable

  • The registrant York UK Hosting Ltd matches the AS holder, with the netname YORKNETWORKS reflecting the company's historical or regional branding.
  • Iridis has been a specialist hosting provider since 2001, operating under the brand name Iridis while the legal entity is York UK Hosting Ltd.
  • The address inventory is compact, consisting of a single contiguous IPv4 block and a single IPv6 prefix.

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

ASNetworkPaths seen
AS35200TransitX Ltd93

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 · 512 addresses IPv6 1 prefixes

CountryNamePrefixes
GBUnited Kingdom2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS61978
Registry name
IRIDIS
Registrant
York UK Hosting Ltd
Abuse contact
abuse@yorkukhosting.com
Registered
2021-08-04
Last changed
2026-09-07
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS61978
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS61978

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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