AS10461 EZE-CASTLE-SOFTWARE-LLC

EZE-CASTLE-SOFTWARE-LLC is Eze Castle Software, founded 1995 and today part

of SS&C Technologies as SS&C Eze after SS&C's $1.45bn acquisition in 2018.

It builds order- and execution-management systems (OMS/EMS) for hedge funds and

asset managers.

What it's used for

• Serving Eze's investment-management platform to buy-side clients: order routing, execution, portfolio and compliance systems, plus the remote-access gateways those clients connect through.

Notable

• Enterprise / financial-technology, not hosting and not transit. RIS sees 15 IPv4 prefixes carrying roughly 6,912 addresses, with 5 observed BGP neighbours. A software vendor's production edge looks exactly like this: a few thousand addresses, several upstreams for the redundancy trading clients demand, and nobody downstream buying transit.
• Reverse DNS identifies the equipment rather than the tenant. bigip03-10.taltrade.com, bigip03-12, bigip03-67 and bigip03-61 are F5 BIG-IP load balancers — the front door of an application service, spread across four different prefixes (63.75.60.0/22, 63.215.120.0/23, 198.207.140.0/24). chiremote.ezesoft.com is a Chicago remote-access gateway under the company's own domain. Load balancers and remote-access endpoints are a service operator's own infrastructure; a hosting provider's space would carry unrelated customers' hostnames instead.
• The prefixes are scattered across 63.x, 142.0.x, 193.201.x, 204.213.x and 74.118.x, but they are first-party and carry first-party rDNS — untidiness from acquisitions and multiple data centres, not the address-broker shape.

Interesting

• taltrade.com is a legacy brand still fronting production hosts, another AS wearing its merger history in reverse DNS.