Home Prefix Lookup2603:2a40:600::/40

2603:2a40:600::/40 - Comcast Cable Communications (AS36733)

IPv6ARINannouncedAS36733DNEO-OSP7 - Comcast Cable Communications, LLC RPKI Valid

CIDR

2603:2a40:600::/40

IP Version

IPv6

Addresses

309.4Y

Mask

/40

Country

🇺🇸 United States

City

Lee's Summit

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
2603:2a40:600::/40	AS36733 DNEO-OSP7 - Comcast Cable Communications, LLC	Valid	ARIN	2026-10-11

Covering Prefix

2 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
2603:2000::/20	AS7922 COMCAST-7922 - Comcast Cable Communications, LLC	Valid	-	2026-10-11
2603:2a40::/26	AS36733 DNEO-OSP7 - Comcast Cable Communications, LLC	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
2603:2a40:600::/40	AS36733	/40	arin
2603:2a40::/26	AS36733	/26	arin
2603:2000::/20	AS7922	/20	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS36733	ARIN	MNT-CCCS	2025-01-30

Origin ASN

AS36733

DNEO-OSP7 - Comcast Cable Communications, LLC

Related Prefixes

Covering prefix

2603:2a40::/26AS36733

More prefixes of AS36733

All prefixes of AS36733 →

Geolocation

Country🇺🇸United StatesUS

RegionMissouri

CityLee's Summit

Coordinates38.9388, -94.3906 ↗

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/2603:2a40:600::/40

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

curl -s "https://api.ipctl.io/v1/prefix/2603:2a40:600::/40" | jq

External Links

RIPEstat