AS41477 — LMAX

AS41477 announces 4 IPv4 prefixes covering 2,816 addresses and 0 IPv6 prefixes.

About this network

LMAX is the autonomous system for LMAX Limited.

What it's used for

• The address space carries corporate infrastructure for a financial technology firm, evidenced by reverse DNS entries pointing to lmax.com and netnames such as LMAX and UK-LMAX-20130906.
• The AS announces 2816 IPv4 addresses across 4 prefixes with 9 observed neighbours, a ratio consistent with an internal corporate estate rather than a transit or access network.
• Traffic from this AS consists of low-latency matching engine infrastructure and API endpoints supporting institutional trading venues for FX, metals, indices, and cryptocurrencies.

Notable

• Registrants align with the announcer, listing LMAX IS Networks; LMAX Limited for UK blocks and LMAX Hong Kong Ltd for the 103.219.172.0/23 and 103.219.174.0/24 prefixes.
• LMAX Group was established in 2010 by Betfair and Goldman Sachs to repurpose sports betting software for financial markets.
• The inventory is finely subdivided into four distinct prefixes, including a dedicated allocation for the Hong Kong entity.

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

Announced prefixes

• 91.215.164.0/22
• 103.219.172.0/23
• 103.219.174.0/24
• 185.34.164.0/22

Upstream networks

• AS13335 Cloudflare, Inc.
• AS6461 Zayo Bandwidth
• AS3491 PCCW Global (HK) Ltd.
• AS2914 NTT America, Inc.
• AS174 Cogent Communications, LLC

Downstream networks

• AS51221 LMAX Limited
• AS63428 LMAX USA Inc
• AS47675 LMAX Digital Group Limited
• AS39498 LMAX Digital Group Limited

Adjacent networks

• AS13335 Cloudflare, Inc.
• AS6461 Zayo Bandwidth
• AS1299 Arelion Sweden AB
• AS51221 LMAX Limited
• AS63428 LMAX USA Inc
• AS47675 LMAX Digital Group Limited
• AS2914 NTT America, Inc.
• AS39498 LMAX Digital Group Limited
• AS3491 PCCW Global (HK) Ltd.
• AS174 Cogent Communications, LLC

Routing security

• RPKI: 7 valid, 0 invalid and 0 not-found announcements; 12 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 23 route objects.
• Listed in as-sets: AS-ANC-CUSTOMER-PROXY-REGISTER, AS-BSO, AS-INTEROUTE, AS-ITXBR1, AS-IXREACH, AS-KDDCUSTOMER2, AS-LMAX, AS-LMAX-DIGITAL, AS-NWN-TRANSIT, AS-PACNET-DOWNSTREAM-HK, AS-PACNET-DOWNSTREAM-PH, AS-TELSTRA-INTL-CUSTOMERS, AS-TELSTRA-INTL-CUSTOMERS-4637, AS13335:AS-CUSTOMERS, AS3491:AS-CUSTOMERS-AP, AS41477:AS-GLOBAL, AS63428:AS-USA.