AS202154 — brevanhoward Brevan Howard Asset Management LLP

AS202154 announces 2 IPv4 prefixes covering 768 addresses and 0 IPv6 prefixes.

About this network

BREVANHOWARD is the autonomous system for Brevan Howard Asset Management LLP.

What it's used for

• The address space carries internal corporate infrastructure, identified by the netname UK-BREVANHOWARD and registrant Head of Networks; Brevan Howard Asset Management LLP.
• The AS announces 768 IPv4 addresses across 2 prefixes with 5 observed neighbours, indicating a small, self-contained corporate estate rather than a transit or access network.
• Traffic from this AS consists of office workers, portfolio managers, and internal systems for a global alternative investment management firm.

Notable

• Registrants for both announced prefixes align with the AS holder, listing Brevan Howard Asset Management LLP as the responsible entity.
• The inventory consists of two contiguous IPv4 blocks: 193.203.248.0/23 and 193.203.250.0/24.

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

Announced prefixes

• 193.203.248.0/23
• 193.203.250.0/24

Upstream networks

• AS174 Cogent Communications, LLC
• AS18106 Viewqwest Pte Ltd
• AS8220 COLT Technology Services Group Limited
• AS46887 Crown Castle Fiber LLC
• AS24482 SG.GS

Adjacent networks

• AS174 Cogent Communications, LLC
• AS18106 Viewqwest Pte Ltd
• AS8220 COLT Technology Services Group Limited
• AS46887 Crown Castle Fiber LLC
• AS24482 SG.GS

Routing security

• RPKI: 0 valid, 0 invalid and 3 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 3 route objects.
• Listed in as-sets: AS-CCF, AS-CCF-TEST, AS-HURRICANE, AS-SGGS, AS-TRANSROUTE-SPEC, AS18106:AS-TRANSIT, AS8220:AS-COLTUK.