asn.dev

Autonomous system

AS60851 EMIS-AS

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly GB
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

EMIS Health

United Kingdom · AI-generated

healthcare business uk software

The AS handle EMIS-AS is held by Egton Medical Information Systems Limited, now operating as EMIS Health.

What it's used for

  • The space carries corporate infrastructure for a healthcare software provider, evidenced by the netname UK-EMIS-20121213 and registrant Egton Medical Information Systems Limited; EMIS ABUSE NETWORKS.
  • The inventory consists of a single IPv4 prefix, 185.13.72.0/22, comprising 1024 addresses, with 0 IPv6 prefixes announced.
  • With only 1 observed neighbour, the network functions as a small, self-contained corporate estate rather than a transit or access provider.
  • Traffic from this AS represents internal operations for a company supplying electronic patient record systems and software used in primary care and acute settings.

Notable

  • The registrant Egton Medical Information Systems Limited aligns directly with the AS holder and the netname UK-EMIS-20121213.
  • The operator was formerly known as Egton Medical Information Systems and rebranded to EMIS Health; it was acquired by Optum in 2023 and rebranded as Optum in March 2025.
  • The address inventory is a single /22 block, indicating a compact, unified corporate footprint without subdivision.

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 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS5089Virgin Media Limited122

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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 · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
GBUnited Kingdom1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS60851
Registry name
EMIS-AS
Registrant
MNT-EMIS
Abuse contact
privacy@emisgroupplc.com
Registered
2013-04-24
Last changed
2026-08-18
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS60851
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS60851

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 1,845 prefixes, as published 2026-10-31. 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