Home Prefix Lookup2601:a40:600::/40

2601:a40:600::/40 - Comcast Cable Communications (AS36733)

IPv6ARINannouncedAS36733DNEO-OSP7 - Comcast Cable Communications, LLC RPKI Valid

CIDR

2601:a40:600::/40

IP Version

IPv6

Addresses

309.4Y

Mask

/40

Country

🇺🇸 United States

City

Philadelphia (Center 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
2601:a40:600::/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
2601::/20	AS7922 COMCAST-7922 - Comcast Cable Communications, LLC	Valid	-	2026-10-11
2601:a40::/26	AS36733 DNEO-OSP7 - Comcast Cable Communications, LLC	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
2601:a40:600::/40	AS36733	/40	arin
2601:a40::/26	AS36733	/26	arin
2601::/20	AS7922	/20	arin

IRR Route Objects

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

Transfer History

Registry transfers of 2601:a40:600::/40, blocks inside it, or blocks containing it.

2601::/20M&A · 2016-08-31
Comcast IP Services, L.L.C.
🇺🇸 US ARIN
→
Comcast Cable Communications, LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2016-08-31	2601::/20	Comcast IP Services, L.L.C. 🇺🇸 US ARIN	Comcast Cable Communications, LLC 🇺🇸 US ARIN	M&A

Origin ASN

AS36733

DNEO-OSP7 - Comcast Cable Communications, LLC

Related Prefixes

Covering prefix

2601:a40::/26AS36733

More prefixes of AS36733

All prefixes of AS36733 →

Geolocation

Country🇺🇸United StatesUS

RegionPennsylvania

CityPhiladelphia (Center City)

Coordinates39.9547, -75.1685 ↗

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/2601:a40:600::/40

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

curl -s "https://api.ipctl.io/v1/prefix/2601:a40:600::/40" | jq

External Links

RIPEstat