AS19209 — GMO-BOSTON - Grantham, Mayo, VanOtterloo & Co. LLC

AS19209 announces 2 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

The AS handle GMO-BOSTON is held by Grantham, Mayo, VanOtterloo & Co. LLC.

What it's used for

• The address space carries hosting infrastructure, evidenced by reverse DNS entries such as arc2.skyrope.net and core-190.serverpool.skyrope.net.
• The AS announces 512 IPv4 addresses across 2 prefixes with 2 observed neighbours, indicating a small-scale hosting or business presence rather than a transit provider.

Notable

• Registrants for the announced prefixes are TierPoint, LLC and Telx, which differ from the AS holder, suggesting the address space is leased or managed by third-party data center operators.
• The inventory consists of two /24 blocks, one registered to TierPoint and one to Telx, reflecting a fragmented or multi-tenant address allocation.

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

Announced prefixes

• 69.147.188.0/24
• 192.235.80.0/24

Upstream networks

• AS174 Cogent Communications, LLC
• AS36086 Telx

Adjacent networks

• AS174 Cogent Communications, LLC
• AS36086 Telx

Routing security

• RPKI: 1 valid, 0 invalid and 1 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 50% of announcements registered; 3 route objects.
• Listed in as-sets: AS-AXNE, AS-CCF, AS-CCF-TEST, AS-LIGHT-141, AS-PNAPBOS, AS-TELX, AS-VEROXITY, AS-WINDSTREAM-CUST, AS2764:AS-BGP-CUSTS.