Home ASN LookupAS33650

AS33650 COMCAST-33650 - Comcast Cable Communications, LLC

🇺🇸

ARINassigned

Announced Prefixes (BGP)

125total

13 IPv4112 IPv6

IPv4 Addresses

Allocated (RIR)256

Announced (BGP)4,608

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)1.3×10²⁶

Prefix Limit (IPv4)

Prefix Limit (IPv6)

500

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

2005-02-16

Routing hygiene

Score 12/100 · Low risk

RPKI ROA coverage

98.4%

no RPKI invalid prefixes

IRR route objects

90.4%

10 prefixes registered for another origin

Hijack signals

0 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 0/100

Only one upstream seen in the AS paths of its routes

Based on 125 announced prefixes, updated daily (2026-10-26). How the score works · RPKI explained

Announced Prefixes

(BGP)125

Prefix	RPKI	IRR	Last Seen
50.202.174.0/24	Valid	-	-
50.204.37.0/24	Valid	-	-
50.204.214.0/24	Valid	-	-
50.207.166.0/24MOAS	Valid	-	-
50.216.238.0/24	Valid	-	-
50.222.54.0/24	Valid	-	-
50.226.76.0/23	Valid	-	-
50.234.46.0/23	Valid	-	-
50.238.166.0/24	Valid	-	-
50.238.235.0/24	Valid	-	-

1-10 of 125

1 / 13

Allocated Prefixes

(RIR)1

Prefix	Country	RIR	Status
64.145.72.0/24	🇺🇸 US	ARIN	allocated

All 125 announced prefixes of AS33650 →

Downstream Customers(3)

ASN	Name
AS11649	🇺🇸GUNET - Gonzaga University
AS54256	🇺🇸VELOCITY-COMMUNICATIONS - Velocity Communications Inc.
AS400240	🇺🇸NEEBUNET - NEEBU Networks

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS33650 hands its own prefixes to: transit providers, or peers at an exchange.

AS7922Comcast Cable Communications125

Downstreams (33)

Networks whose own prefixes AS33650 passes on: usually its customers.

AS15307Childrens Hospital And Regional Medical Center4
AS18625Data I/O Corporation3
AS20940AKAMAI ASN1 Akamai International B.V3
AS40410FRIT3
AS396402MultiCare Health System3
AS397183Flextronics International USA3
AS10632Puget Sound Energy2
AS32108WSECU2
AS55214Coast Communications Company2
AS395974Comcast Cable Communications2
AS400240NEEBU Networks2
AS3379Kaiser Foundation Health Plan1
AS11270Peak Credit Union1
AS11307Recreational Equipment1
AS14203Juniper Networks1
AS16763Tideworks Technology1
AS20168Precor Incorporated1
AS22317F51
AS32027Port Of Seattle1
AS32092Altair Advanced Industries1
AS33529PAC Worldwide Corporation1
AS36040Google1
AS36075SpaceLabs Medical1
AS40391CHS COOPERATIVES FOUNDATION1
AS55244Blue Origin Enterprises, L.P1
AS63029Payscale1
AS63422World Vision1
AS393353America'S Credit Union1
AS394608KEXP1
AS395240CARIAD1
AS395617Plymouth Poultry Company1
AS396258Seattle University1
AS397804Lighthouse Document Technologies1

Transfer History

Registry transfers of AS33650 between organisations.

AS33650M&A · 2016-08-31
Comcast Cable Communications, Inc.
🇺🇸 US ARIN
→
Comcast Cable Communications, LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2016-08-31	AS33650	Comcast Cable Communications, Inc. 🇺🇸 US ARIN	Comcast Cable Communications, LLC 🇺🇸 US ARIN	M&A

ASPA

No ASPA0 upstreams, 3 downstreams

Listed as Upstream Provider by

3 ASNs

View full ASPA details →

External Links

ARIN Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/33650

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/33650" | jq