AS31858 — MWNA-ASN

AS31858 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

MWNA-ASN is the autonomous system for Marshall Wace North America L.P.

What it's used for

• The space carries a single IPv4 prefix, 208.103.172.0/24, registered under the netname MWNA-1.
• With 256 IPv4 addresses announced and only 1 observed neighbour, the ratio indicates a small, isolated corporate network rather than a transit or access provider.

Notable

• The registrant MARSHALL WACE NORTH AMERICA L.P. matches the AS holder exactly.
• Marshall Wace is a global hedge fund manager with a U.S. office in New York.
• The inventory consists of a single /24 block with no IPv6 prefixes, typical of a private corporate estate.

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

Announced prefixes

• 208.103.172.0/24

Upstream networks

• AS46450 Pilot Fiber, Inc.

Adjacent networks

• AS46450 Pilot Fiber, Inc.