Autonomous System
AS33667 — CMCS - Comcast Cable Communications, LLC(US)
Last fetched
AS33667 is an Autonomous System operated by CMCS - Comcast Cable Communications, LLC and registered in US. As of Thu, 21 May 2026 16:34:46 GMT, it announces 101 routed IP prefixes and peers with 67 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS33667 announces 101 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
- 5.182.186.0/24
- 5.182.193.0/24
- 5.182.194.0/24
- 5.182.195.0/24
- 9.142.48.0/20
- 9.142.96.0/19
- 36.255.215.0/24
- 45.67.141.0/24
- 50.203.5.0/24
- 50.203.201.0/24
- 50.207.246.0/24
- 50.222.62.0/24
- 50.236.209.0/24
- 50.239.185.0/24
- 63.246.148.0/24
- 63.246.152.0/24
- 63.246.159.0/24
- 64.189.18.0/24
- 78.31.206.0/24
- 103.111.63.0/24
- 103.216.197.0/24
- 107.0.64.0/23
- 135.132.64.0/19
- 138.226.48.0/21
- 138.226.64.0/20
Peering ecosystem
67 distinct peers via BGP. The first 67 are listed below.
| Peer ASN | Operator | Country |
|---|---|---|
| AS2894 | CALIF-DWR - California Department of Water Resources | US |
| AS399761 | STREAMIT-001 - Stream IT Networks LLC | US |
| AS398572 | MONOLITHICPOWER-SJC - Monolithic Power Systems,Inc | US |
| AS398214 | PHP-ASN - Prominence Health Plan | US |
| AS398204 | CITY-OF-STOCKTON - City of Stockton | US |
| AS397909 | EGUSD-01 - Elk Grove Unified School District | US |
| AS397813 | CLARKE-MULTIHOME-IP-BLOCK - Clarke Broadcasting Corporation | US |
| AS397787 | MEWUK-NETWORKS - Black Oak Casino | US |
| AS397765 | CCA - California College of the Arts | US |
| AS397620 | CITYMENLOPARK - City of Menlo Park | US |
| AS397062 | SMG - Sun-Maid Growers of California | US |
| AS395536 | TRIMARKASSOC - Trimark Associates, inc | US |
| AS395011 | SF-PSN - City and County of San Francisco | US |
| AS394516 | COUNTYOFNAPAAS - County of Napa MIS | US |
| AS394377 | COUNTY-OF-TULARE - County of Tulare | US |
| AS394304 | SACRAMENTO-KINGS - Sacramento Downtown Arena, LLC | US |
| AS204662 | HARMONIC_FRANCE | FR |
| AS55064 | ARISTAASN1 - Arista Networks, Inc. | US |
| AS55059 | MPP - Microwave Power Products, Inc. | US |
| AS55032 | JAXNET-BH-01 - The Jackson Laboratory | US |
| AS54201 | WEWORK-MANAGEMENT-LLC - We Link Networks LLC | US |
| AS53782 | PCOASTP - Pacific Coast Producers | US |
| AS53497 | WEBPERCEPTION - WebPerception, LLC | US |
| AS46867 | AUDEAMUS - Sebastian | US |
| AS46520 | CA-DOJ - California Department of Justice | US |
| AS46341 | CPUC-AS-001 - California Public Utilities Commission | US |
| AS40639 | KORBELINC - F Korbel & Bros Inc | US |
| AS40385 | SAINT-MARYS-CA-AS - Saint Marys College of California | US |
| AS36040 | YOUTUBE - Google LLC | US |
| AS35928 | BECKMAN-COULTER-ASN - BECKMAN COULTER, INC. | US |
| AS32928 | ITECHTOOL-ASN-LAH - ITechTool Incorporated | US |
| AS32688 | GOLDEN1-CU-NET - THE GOLDEN 1 CREDIT UNION | US |
| AS32537 | XILINX - Xilinx Incorporated | US |
| AS27580 | ENGINEERING-ASN1 - CONVERGEONE HOLDINGS, INC. | US |
| AS27288 | DPCHICO-1 - Digital Path | US |
| AS27009 | CUSD - Clovis Unified School District | US |
| AS25753 | CALPERS - California Public Employees Retirement System | US |
| AS23411 | — | — |
| AS23338 | ASN-DCS-01 - DCS Pacific Star, LLC | US |
| AS22768 | SYNERGYBROADBAND-MI-02 - SYNERGY BROADBAND | US |
| AS22700 | USFCA - University of San Francisco | US |
| AS22695 | PLAYGROUND - Playground Global, LLC | US |
| AS22617 | SACCOURT - Superior Court of California, County of Sacramento | US |
| AS22216 | SIEMENS-PLM - Siemens Corporation | US |
| AS21954 | TELES-27 - Telestream, Inc. | US |
| AS20940 | AKAMAI-ASN1 | NL |
| AS19126 | KIZAWIRELESS - KIZA | US |
| AS18880 | LAMRC - Lam Research Corporation | US |
| AS18841 | TRIMBLE-SNVL - Trimble, Inc. | US |
| AS17381 | AS-WSI-ECOM-WEST - Williams-Sonoma | US |
| AS17035 | NBCUNI-17035 - NBCUniversal | US |
| AS14443 | BFS-49-14443 - Broadridge Financial Solutions, Inc. | US |
| AS14421 | THERAVANCE - Theravance Biopharma US, LLC | US |
| AS14203 | JUNIPER-NETWORKS - Juniper Networks, Inc. | US |
| AS13511 | UNIVI-2-ASN - Univision Communications Inc. | US |
| AS13335 | CLOUDFLARENET - Cloudflare, Inc. | US |
| AS11829 | CADENCE - Cadence Design Systems, Inc. | US |
| AS11620 | SUCCEED-NET - Succeed.Net | US |
| AS11574 | SFGNET-AS - San Francisco Baseball Associates LLC | US |
| AS10982 | TIVO-SJ - TiVo, Inc. | US |
| AS10780 | PURE-STORAGE - Pure Storage, INC. | US |
| AS7922 | COMCAST-7922 - Comcast Cable Communications, LLC | US |
| AS6099 | BAE-NET-ASN - Alameda County Office of Education | US |
| AS5081 | CCS-AS - CLARE COMPUTER SOLUTIONS | US |
| AS4182 | MLSLI-2 - MLSListings inc. | US |
| AS3708 | PACIFIC-BIOSIENCES - Pacific Biosciences of California, Inc. | US |
| AS3356 | LEVEL3 - Level 3 Parent, LLC | US |
Blast radius
Approximate 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
Related pages
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 countryOr query Whisper from your own LLM workflow via the Whisper MCP server.