AS45139 MICROSOFT-AS-AP Microsoft Corp

🇸🇬

Org handle: ORG-MSPL4-AP

Microsoft Corp

APNICallocated

Announced Prefixes (BGP)

5total

2 IPv43 IPv6

IPv4 Addresses

Allocated (RIR)7,680

Announced (BGP)768

IPv6 Addresses

Allocated (RIR)3.1×10²⁹

Announced (BGP)3.6×10²⁴

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

allocated

Allocated

2008-03-07

Announced Prefixes

(BGP)5

Prefix	RPKI	IRR	Last Seen
167.220.226.0/23	Valid	APNICOther IRR	2026-10-10
167.220.227.0/24	Valid	APNICOther IRR	2026-10-10
2401:b640:17::/48MOAS	Invalid	-	2026-10-10
2404:f801:8020::/48	Valid	APNICOther IRR	2026-10-10
2404:f801:802c::/48	Valid	APNICOther IRR	2026-10-10

(RIR)8

Prefix	Country	RIR	Status
167.220.224.0/20	🇸🇬 SG	APNIC	allocated
167.220.240.0/22	🇸🇬 SG	APNIC	allocated
167.220.248.0/21	🇸🇬 SG	APNIC	allocated
192.146.133.0/24	🇸🇬 SG	APNIC	assigned
192.153.251.0/24	🇸🇬 SG	APNIC	assigned
2001:df0:d8::/48	🇦🇺 AU	APNIC	assigned
2001:df0:d9::/48	🇹🇼 TW	APNIC	assigned
2404:f800::/30	🇸🇬 SG	APNIC	assigned

(seen in AS paths)

Networks AS45139 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 AS45139 should publish an ASPA object
IPv4 transfers in the APNIC 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/45139" | jq