AS36752 — YAHOO-SP1

AS36752 announces 2 IPv4 prefixes covering 768 addresses and 1 IPv6 prefixes.

About this network

YAHOO-SP1 is operated by Yahoo Holdings Inc.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by reverse DNS entries such as e1.ycpi.ata.yahoo.com and et18-1.bas3-1-edg.ata.yahoo.com.
• The AS announces 768 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating a small, self-contained internal estate rather than a transit or access network.

Notable

• Registrants for both announced IPv4 prefixes are listed as Yahoo Holdings Inc., matching the AS holder.
• The address inventory is finely subdivided into two small IPv4 blocks and a single IPv6 /48, consistent with site-by-site segmentation for a large corporation.

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

Announced prefixes

• 209.73.177.0/24
• 209.73.178.0/23
• 2001:4998:15c::/48

Upstream networks

• AS10310 Yahoo Holdings Inc.

Adjacent networks

• AS10310 Yahoo Holdings Inc.