Home Prefix Lookup20.153.202.0/23

20.153.202.0/23 - Microsoft Corporation (AS8069)

IPv4ARINannouncedAS8069MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation RPKI Valid

CIDR

20.153.202.0/23

IP Version

IPv4

Addresses

512

Mask

/23 (255.255.254.0)

Country

🇯🇵 Japan

City

Tokyo

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
20.153.202.0/23	AS8069 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	-	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
20.153.0.0/16	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
20.153.202.0/23	AS8069	/23	arin
20.153.0.0/16	AS8075	/16	arin

Transfer History

Registry transfers of 20.153.202.0/23, blocks inside it, or blocks containing it.

20.153.0.0/16Transfer · 2017-10-18
Computer Sciences Corporation
🇺🇸 US ARIN
→
Microsoft Corporation
🇺🇸 US ARIN

Date	Resource	From	To	Type
2017-10-18	20.153.0.0/16	Computer Sciences Corporation 🇺🇸 US ARIN	Microsoft Corporation 🇺🇸 US ARIN	Transfer

Origin ASN

AS8069

MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation

Related Prefixes

Covering prefix

20.153.0.0/16AS8075

More prefixes of AS8069

All prefixes of AS8069 →

Geolocation

Country🇯🇵JapanJP

CityTokyo

Coordinates35.6762, 139.6503 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/20.153.202.0/23

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/20.153.202.0/23" | jq

External Links

RIPEstat