AS17144 NUANCE-NOD - Microsoft Corporation

🇺🇸

ARINassigned

Announced Prefixes (BGP)

7total

4 IPv43 IPv6

IPv4 Addresses

Allocated (RIR)256

Announced (BGP)1,024

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)3.6×10²⁴

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

assigned

Allocated

2000-07-28

Announced Prefixes

(BGP)7

Prefix	RPKI	IRR	Last Seen
66.151.66.0/24	No ROA	Other IRR	2026-10-11
67.208.167.0/24	No ROA	Other IRR	2026-10-11
74.123.179.0/24	No ROA	Other IRR	2026-10-11
192.135.86.0/24	No ROA	-	2026-10-11
2602:fdbb:a::/48	No ROA	Other IRR	2026-10-11
2602:fdbb:b::/48	No ROA	Other IRR	2026-10-11
2602:fdbb:c::/48	No ROA	Other IRR	2026-10-11

(RIR)1

Prefix	Country	RIR	Status
192.135.86.0/24	🇺🇸 US	ARIN	allocated

(seen in AS paths)

Networks AS17144 hands its own prefixes to: transit providers, or peers at an exchange.

Registry transfers of AS17144 between organisations.

Date	Resource	From	To	Type
2024-10-15	AS17144	NUANCE COMMUNICATIONS, INC 🇺🇸 US ARIN	Microsoft Corporation 🇺🇸 US ARIN	M&A

ASPA

No ASPA

External Links

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS17144 should publish an ASPA object
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/17144" | jq