AS29197 — LEHMAN-AS3

AS29197 announces 8 IPv4 prefixes covering 4,864 addresses and 0 IPv6 prefixes.

About this network

The AS handle LEHMAN-AS3 is held by Nomura International Plc.

What it's used for

• The address space carries corporate infrastructure for Nomura, evidenced by netnames NOM-US and EU-MAP-1 and registrants Nomura America Services, LLC and NOMURA HOLDING AMERICA INC.
• The AS announces 4864 IPv4 addresses across 10 prefixes with only 3 observed neighbours, indicating a small, self-contained corporate estate rather than a transit or access network.

Notable

• Registrants align with the announcer, listing Nomura America Services, LLC and NOMURA HOLDING AMERICA INC for the majority of prefixes.
• The address inventory is finely subdivided into multiple /23 and /24 blocks, consistent with site-by-site segmentation for an internal corporate network.

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

Announced prefixes

• 147.62.110.0/23
• 147.85.163.0/24
• 147.85.172.0/23
• 147.85.180.0/22
• 147.85.186.0/23
• 147.85.188.0/22
• 147.85.216.0/23
• 147.85.228.0/23

Upstream networks

• AS198949 Radware Ltd
• AS3356 Level 3 Parent, LLC
• AS6461 Zayo Bandwidth

Adjacent networks

• AS198949 Radware Ltd
• AS3356 Level 3 Parent, LLC
• AS6461 Zayo Bandwidth