AS3598 MICROSOFT-CORP-AS - Microsoft Corporation

🇺🇸

ARINassigned

Announced Prefixes (BGP)

26total

21 IPv45 IPv6

IPv4 Addresses

Allocated (RIR)197,632

Announced (BGP)611,328

IPv6 Addresses

Allocated (RIR)1.5×10²⁹

Announced (BGP)2.3×10²⁹

Prefix Limit (IPv4)

200

Prefix Limit (IPv6)

Country

RIR

Status

assigned

Allocated

1994-05-18

Announced Prefixes

(BGP)26

Prefix	RPKI	IRR	Last Seen
65.53.0.0/16	Valid	Other IRR	2026-10-10
131.107.0.0/16	Valid	Other IRR	2026-10-10
157.54.0.0/16	Valid	Other IRR	2026-10-10
157.57.0.0/16	Valid	Other IRR	2026-10-10
157.58.0.0/16	Valid	Other IRR	2026-10-10
157.58.31.0/24	Valid	Other IRR	2026-10-10
157.58.192.0/19	Valid	Other IRR	2026-10-10
157.59.0.0/16	Valid	Other IRR	2026-10-10
157.60.0.0/16	Valid	Other IRR	2026-10-10
167.220.0.0/16	No ROA	Other IRR	2026-10-10

1-10 of 26

1 / 3

(RIR)9

Prefix	Country	RIR	Status
131.107.0.0/16	🇺🇸 US	ARIN	allocated
157.60.0.0/16	🇺🇸 US	ARIN	allocated
167.220.0.0/17	🇺🇸 US	ARIN	allocated
167.220.128.0/18	🇺🇸 US	ARIN	allocated
167.220.192.0/19	🇺🇸 US	ARIN	allocated
194.69.96.0/19	🇬🇧 GB	RIPENCC	assigned
198.105.232.0/22	🇺🇸 US	ARIN	allocated
2404:f801::/32	🇸🇬 SG	APNIC	allocated
2a01:110::/32	🇬🇧 GB	RIPE	assigned

(seen in AS paths)

Networks AS3598 hands its own prefixes to: transit providers, or peers at an exchange.

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 AS3598 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/3598" | jq