Autonomous system profile

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

AS19209

Announcement observedARIN

GMO-BOSTON - Grantham, Mayo, VanOtterloo & Co. LLC · GMO-BOSTON

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

Last active10/1/2026, 01:01:18Snapshot expired

View network topology RDAP registration

ASN: AS19209
Registration country: United States
Name: GMO-BOSTON - Grantham, Mayo, VanOtterloo & Co. LLC
Abbreviation: GMO-BOSTON
Registration date: 12/5/2000, 05:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
192.235.80.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	9/30/2026, 16:00:00	✓	×	Currently valid
69.147.188.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	9/30/2026, 16:00:00	✓	×	Currently valid

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

Registration and sources

Organization: GMO-BOSTON - Grantham, Mayo, VanOtterloo & Co. LLC
RIR: ARIN
Registration country: United States
Registration date: 12/5/2000, 05:00:00
Abuse contact: ted.roy@gmo.com

Snapshot trend

10/1/2026, 01:01:182 v40 v62 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 · rir-rdap-asn · iana-rdap-asn-bootstrap