AS210045 — BC-AS Blackrock Clinic Unlimited Company

AS210045 announces 2 IPv4 prefixes covering 512 addresses and 1 IPv6 prefixes.

About this network

The AS handle BC-AS is held by Blackrock Clinic Unlimited Company.

What it's used for

• The address space carries the private hospital's internal network, evidenced by netnames IE-BLACKROCKCLINIC-20050203 and IE-BLACKROCKCLINIC-20220413 and registrants including "Blackrock Clinic RIPE Administrator" and "Blackrock Clinic RIPE IT".
• The AS announces 512 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating a small, self-contained corporate estate rather than a transit or access provider.
• Traffic from this AS consists of internal hospital systems, administrative endpoints, and clinical infrastructure for the private hospital located in Blackrock, Dublin.

Notable

• Registrants for both announced prefixes align with the AS holder, listing "Blackrock Clinic Unlimited Company" and associated RIPE administrative roles.
• The address inventory is compact, consisting of two /24 IPv4 blocks and a single /29 IPv6 block, consistent with a single-site corporate deployment.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 85.159.23.0/24
• 217.28.133.0/24
• 2a12:2140::/29

Upstream networks

• AS39122 Blacknight Internet Solutions Limited

Adjacent networks

• AS39122 Blacknight Internet Solutions Limited

Routing security

• RPKI: 3 valid, 0 invalid and 0 not-found announcements; 3 ROAs.
• ASPA: 1 authorised providers.
• IRR: 100% of announcements registered; 3 route objects.
• Listed in as-sets: AS-BLACKNIGHT, AS-FASTWEB, AS-HURRICANEV6, AS39122:AS-BLACKNIGHT.