Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS31858

Announcement observedARIN

MARSHALL WACE NORTH AMERICA L.P. · MWNA-ASN

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/2/2026, 10:46:00Snapshot expired

View network topology RDAP registration

ASN: AS31858
Registration country: United States
Name: MARSHALL WACE NORTH AMERICA L.P.
Abbreviation: MWNA-ASN
Registration date: 3/19/2008, 18:15:52
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
208.103.172.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: MARSHALL WACE NORTH AMERICA L.P.
RIR: ARIN
Registration country: United States
Registration date: 3/19/2008, 18:15:52
Abuse contact: noc@mwam.com

Snapshot trend

10/2/2026, 10:46:001 v40 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn