Home Prefix Lookup2001:500:2f::/48

2001:500:2f::/48 - Internet Systems Consortium (AS3557)

IPv6ARINannounced AnycastAS3557ISC-AS - Internet Systems Consortium, Inc. RPKI Valid

CIDR

2001:500:2f::/48

IP Version

IPv6

Addresses

1.2Y

Mask

/48

Country

🇺🇸 United States

City

Redwood City

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
2001:500:2f::/48	AS3557 ISC-AS - Internet Systems Consortium, Inc.	Valid	ARINOther IRR	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
2001:500:2e::/47	AS3557 ISC-AS - Internet Systems Consortium, Inc.	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
2001:500:2e::/47	AS3557	/48	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS3557	ARIN	MNT-ISC-94	2024-01-30
AS3557	Other IRR	MAINT-AS1280	2023-11-13

Origin ASN

AS3557

ISC-AS - Internet Systems Consortium, Inc.

Related Prefixes

Covering prefix

2001:500:2e::/47AS3557

More prefixes of AS3557

All prefixes of AS3557 →

Geolocation

This is an anycast prefix. The location shown is the organization HQ - actual server location varies by your network path.

Country🇺🇸United StatesUS

RegionCalifornia

CityRedwood City

TimezoneAmerica/Los_Angeles

Coordinates37.4848, -122.2281 ↗

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/2001:500:2f::/48

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

curl -s "https://api.ipctl.io/v1/prefix/2001:500:2f::/48" | jq

External Links

RIPEstat