AS36564 — MENTORGRAPHICS-WIV-B-TAH

AS36564 announces 1 IPv4 prefixes covering 1,024 addresses and 1 IPv6 prefixes.

About this network

The AS handle MENTORGRAPHICS-WIV-B-TAH is held by Siemens Industry Software Inc.

What it's used for

• The address space carries corporate infrastructure for Siemens Industry Software, evidenced by the netname SIEMENS-DISW-11 and registrant Siemens Industry Software Inc.
• The AS announces 1024 IPv4 addresses across 1 prefix and 1 IPv6 prefix, with only 1 observed neighbour, indicating a small, isolated corporate network rather than a transit or access provider.

Notable

• The registrant Siemens Industry Software Inc. matches the AS holder, confirming consistent ownership of the address space.
• Mentor Graphics was acquired by Siemens in 2017 and renamed Siemens Industry Software, explaining the historical AS handle MENTORGRAPHICS-WIV-B-TAH.
• The inventory consists of a single /22 IPv4 block and a /48 IPv6 block, representing a compact internal corporate estate.

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

Announced prefixes

• 139.181.40.0/22
• 2620:107:f0ff::/48

Upstream networks

• AS33490 Comcast Cable Communications, LLC

Adjacent networks

• AS33490 Comcast Cable Communications, LLC