Home Prefix Lookup163.57.0.0/16

163.57.0.0/16 - Microsoft Corporation (AS8075)

IPv4APNICallocatedAS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft CorporationNo ROA

CIDR

163.57.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇸🇬 Singapore

City

Singapore

RIR

APNIC

Status

allocated

Allocated

2011-01-05

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
163.57.0.0/16	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	No ROA	Other IRR	2026-10-11

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS8075	Other IRR	MAINT-AS8075	2024-08-12

Transfer History

Registry transfers of 163.57.0.0/16, blocks inside it, or blocks containing it.

163.57.0.0/16Transfer · 2023-05-18
Futaba Corporation
🇯🇵 JP APNIC
→
Microsoft Operations PTE Ltd
🇸🇬 SG APNIC

Date	Resource	From	To	Type
2023-05-18	163.57.0.0/16	Futaba Corporation 🇯🇵 JP APNIC	Microsoft Operations PTE Ltd 🇸🇬 SG APNIC	Transfer

Origin ASN

AS8075

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

Related Prefixes

More prefixes of AS8075

All prefixes of AS8075 →

Geolocation

Country🇸🇬SingaporeSG

CitySingapore

Coordinates1.3521, 103.8200 ↗

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 APNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/163.57.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/163.57.0.0/16" | jq

External Links

RIPEstat