AS17144 — NUANCE-NOD

AS17144 announces 4 IPv4 prefixes covering 1,024 addresses and 2 IPv6 prefixes.

About this network

NUANCE-NOD is operated by Microsoft Corporation, formerly Nuance Communications.

What it's used for

• The address space carries legacy enterprise infrastructure, with netnames referencing NUANCE and INAP-HOU-NUANCE-25497 alongside Microsoft Corporation registrants.
• The AS announces 1024 IPv4 addresses across 4 prefixes and 2 IPv6 prefixes, with only 2 observed neighbours, indicating a small, self-contained corporate estate rather than a transit or access network.

Notable

• Registrants are mixed, showing both Nuance Communications, Inc. and Microsoft Corporation, reflecting the corporate acquisition history.
• Nuance Communications was acquired by Microsoft, and the AS handle NUANCE-NOD persists as a legacy identifier for the integrated entity.
• The inventory consists of four distinct /24 blocks and two IPv6 prefixes, representing a fragmented but small internal address space.

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

Announced prefixes

• 66.151.66.0/24
• 67.208.167.0/24
• 74.123.179.0/24
• 192.135.86.0/24
• 2602:fdbb:a::/47
• 2602:fdbb:c::/48

Upstream networks

• AS46887 Crown Castle Fiber LLC
• AS13791 Unitas Global

Adjacent networks

• AS46887 Crown Castle Fiber LLC
• AS13791 Unitas Global