Home Prefix Lookup2603:1063:300::/40

2603:1063:300::/40 - Microsoft Corporation (AS8070)

IPv6ARINannouncedAS8070MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation RPKI Valid

CIDR

2603:1063:300::/40

IP Version

IPv6

Addresses

309.4Y

Mask

/40

Country

🇺🇸 United States

City

Phoenix

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
2603:1063:300::/40	AS8070 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	Other IRR	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
2603:1000::/25	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
2603:1063:300::/40	AS8070	/40	arin
2603:1000::/25	AS8075	/25	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS8070	Other IRR	MAINT-AS8075	2023-11-13

Origin ASN

AS8070

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

Related Prefixes

Covering prefix

2603:1000::/25AS8075

More prefixes of AS8070

All prefixes of AS8070 →

Geolocation

Country🇺🇸United StatesUS

RegionArizona

CityPhoenix

Coordinates33.4483, -112.0730 ↗

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/2603:1063:300::/40

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

curl -s "https://api.ipctl.io/v1/prefix/2603:1063:300::/40" | jq

External Links

RIPEstat