AS19311 — STEWART-1

AS19311 announces 2 IPv4 prefixes covering 2,304 addresses and 0 IPv6 prefixes.

About this network

STEWART-1 is the autonomous system for Stewart Title.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by the netname STEWART and registrant Stewart Title on both announced prefixes.
• The AS announces 2304 IPv4 addresses across 2 prefixes (199.253.16.0/21 and 199.253.25.0/24) while maintaining only 4 observed neighbours, a ratio indicative of a small, self-contained corporate estate rather than a transit or access provider.

Notable

• The RDAP registrants for both prefixes are Stewart Title, which aligns perfectly with the AS holder and the registry handle STEWART-1.
• The inventory consists of a single /21 block and a single /24 block, both located in the United States, reflecting a finely subdivided internal network typical of a large enterprise.

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

Announced prefixes

• 199.253.16.0/21
• 199.253.25.0/24

Upstream networks

• AS174 Cogent Communications, LLC
• AS7381 BroadbandONE, LLC
• AS812 Rogers Communications Canada Inc.
• AS13767 DataBank Holdings, Ltd.

Adjacent networks

• AS174 Cogent Communications, LLC
• AS7381 BroadbandONE, LLC
• AS812 Rogers Communications Canada Inc.
• AS13767 DataBank Holdings, Ltd.