Autonomous System

AS33667 — CMCS - Comcast Cable Communications, LLC(US)

Last fetched Tue, 04 Aug 2026 06:03:43 GMT

AS33667 is an Autonomous System operated by CMCS - Comcast Cable Communications, LLC and registered in US. As of Tue, 04 Aug 2026 06:03:43 GMT, it announces 89 routed IP prefixes and peers with 54 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

Routing footprint

AS33667 announces 89 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

Peering ecosystem

54 distinct peers via BGP. The first 54 are listed below.

Peer ASN	Operator	Country
AS11465	KAWEAH-DELTA-HEALTH-CARE-DISTRICT - Kaweah Delta Health Care District	US
AS11620	SUCCEED-NET - Succeed.Net	US
AS11681	INTEGRITY - Integrity Networks	US
AS11829	CADENCE - Cadence Design Systems, Inc.	US
AS13335	CLOUDFLARENET - Cloudflare, Inc.	US
AS13395	SMART-CITY-SOCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP	US
AS13511	UNIVI-2-ASN - Univision Communications Inc.	US
AS14443	BFS-49-14443 - Broadridge Financial Solutions, Inc.	US
AS17117	RITSNET - RITSnet, Inc.	US
AS17381	AS-WSI-ECOM-WEST - Williams-Sonoma	US
AS18841	TRIMBLE-SNVL - Trimble, Inc.	US
AS204662	HARMONIC_FRANCE - Harmonic Technologies France SAS	FR
AS20940	AKAMAI-ASN1 - Akamai International B.V.	NL
AS22317	F5-NETWORKS - F5, Inc.	US
AS22617	SACCOURT - Superior Court of California, County of Sacramento	US
AS22695	PLAYGROUND - Playground Global, LLC	US
AS22768	SYNERGYBROADBAND-MI-02 - SYNERGY BROADBAND	US
AS23338	ASN-DCS-01 - DCS Pacific Star, LLC	US
AS23411	—	—
AS25753	CALPERS - California Public Employees' Retirement System	US
AS25878	QNST-DC01 - Quinstreet, Inc.	US
AS27009	CUSD - Clovis Unified School District	US
AS27580	ENGINEERING-ASN1 - CONVERGEONE HOLDINGS, INC.	US
AS2894	CALIF-DWR - California Department of Water Resources	US
AS32504	INTELLETRACE - Intelletrace	US
AS32688	GOLDEN1-CU-NET - THE GOLDEN 1 CREDIT UNION	US
AS3356	LEVEL3 - Level 3 Parent, LLC	US
AS36040	YOUTUBE - Google LLC	US
AS394121	VCH-MADERA - Valley Children's Hospital	US
AS394377	COUNTY-OF-TULARE - County of Tulare	US
AS394763	CCCERA-AS - Contra Costa County Employees Retirement Association	US
AS395011	SF-PSN - City and County of San Francisco	US
AS395536	TRIMARKASSOC - Trimark Associates, inc	US
AS396262	FSO-ASN - Fresno County Sheriff's Office	US
AS396484	CITY-OF-ROSEVILLE-CA - City of Roseville	US
AS397062	SMG - Sun-Maid Growers of California	US
AS397787	MEWUK-NETWORKS - Black Oak Casino	US
AS397813	CLARKE-MULTIHOME-IP-BLOCK - Clarke Broadcasting Corporation	US
AS397909	EGUSD-01 - Elk Grove Unified School District	US
AS398204	CITY-OF-STOCKTON - City of Stockton	US
AS398572	MONOLITHICPOWER-SJC - Monolithic Power Systems,Inc	US
AS399761	STREAMIT-001 - Stream IT Networks LLC	US
AS400046	ZINUS-US - Zinus Inc	US
AS400147	CITY-OF-MODESTO-01-ASN - City of Modesto	US
AS46341	CPUC-AS-001 - California Public Utilities Commission	US
AS46867	AUDEAMUS - Sebastian	US
AS5081	CCS-AS - CLARE COMPUTER SOLUTIONS	US
AS53782	PCOASTP - Pacific Coast Producers	US
AS54113	FASTLY - Fastly, Inc.	US
AS54201	WEWORK-MANAGEMENT-LLC - We Link Networks LLC	US
AS55032	JAXNET-BH-01 - The Jackson Laboratory	US
AS55064	ARISTAASN1 - Arista Networks, Inc.	US
AS55278	CIG-ASN - California Capital Insurance Company	US
AS7922	COMCAST-7922 - Comcast Cable Communications, LLC	US

Blast radius

Count of dependent hostnames if AS33667 disappeared from the routing table.

Blast radius: Computing — check back later. The precompute pipeline refreshes this panel within a few days.

MOAS / hijack watch

Prefixes routed by AS33667 that another Autonomous System also announces. A non-empty list is one of the strongest BGP-hijack signals available without active probes.

No active MOAS conflicts. Every prefix announced by AS33667 is unique to AS33667 in the current routing snapshot.

Threat posture

Pivot deeper into the graph from AS33667.

Cypher and MCP

Reproduce the headline metric directly against graph.whisper.security:

MATCH (a:ASN {name: "AS33667"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS country

Or query Whisper from your own LLM workflow via the Whisper MCP server.