AS60851 — EMIS-AS Egton Medical Information Systems Limited

AS60851 announces 1 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

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.

Announced prefixes

• 185.13.72.0/22

Upstream networks

• AS5089 Virgin Media Limited

Adjacent networks

• AS5089 Virgin Media Limited

Routing security

• RPKI: 2 valid, 0 invalid and 0 not-found announcements; 2 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-CONVERGENCE, AS-SET-BSCCL, AS-VIRTUAL1, AS13335:AS-CUSTOMERS.