Home Prefix Lookup2001:48e8:1000::/40

2001:48e8:1000::/40 - University Of Massachusetts AMHERST (AS168)

IPv6ARINannouncedAS168UMASS-AMHERST - University of Massachusetts - AMHERSTNo ROA

CIDR

2001:48e8:1000::/40

IP Version

IPv6

Addresses

309.4Y

Mask

/40

Country

🇺🇸 United States

City

New York

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
2001:48e8:1000::/40	AS168 UMASS-AMHERST - University of Massachusetts - AMHERST	No ROA	ARIN	2026-10-12

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
2001:48e8::/29	AS1968 UMASSNET-AS1968 - UMASSNET	No ROA	-	2026-10-12

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS168	ARIN	MNT-UMAP	2026-05-05
AS198949	Other IRR	MAINT-AS198949	2025-02-23

Origin ASN

AS168

UMASS-AMHERST - University of Massachusetts - AMHERST

Related Prefixes

Covering prefix

2001:48e8::/29AS1968

Geolocation

Country🇺🇸United StatesUS

RegionNew York

CityNew York

Coordinates40.7128, -74.0060 ↗

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/2001:48e8:1000::/40

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

curl -s "https://api.ipctl.io/v1/prefix/2001:48e8:1000::/40" | jq

External Links

RIPEstat