206208 looking glass

AS33651 Comcast Cable Communications, LLC 🇺🇸 US

Announcing 287 prefixes, seen at the RIS collectors.

IPv4 prefixes
100
77,568 (303 × /24)
IPv6 prefixes
187
8 × /32
Upstreams
2
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
140
transit customers observed
Customer cone
199
ASes reachable through it

Registry and operator data

AS number
AS33651
Name
Comcast Cable Communications, LLC
Organisation
Comcast - SFBA
Country
🇺🇸 US
RIR
ARIN
Allocated
2005-02-16
Network type
Cable/DSL/ISP
Scope
Regional
Peering policy
Restrictive
Website
https://corporate.comcast.com/
PeeringDB
net/10079
Facilities
1

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

277 valid (96.5%) 0 invalid (0.0%) 10 no ROA (3.5%)

Upstreams

Networks seen providing transit to this one

Network Country Cone IPv4 prefixes Paths Source
AS3356 Lumen (Level 3) 🇺🇸 US 70,844 2,082 268 CAIDA
AS7922 Comcast Cable Communications, LLC 🇺🇸 US 25,578 426 13,032 CAIDA

Peers

Adjacencies that look settlement-free rather than transit

No peers observed at the collectors.

Downstreams

Networks this one appears to provide transit to

Network Country Cone IPv4 prefixes Paths Source
AS10753 Level 3 Parent, LLC 🇺🇸 US 56 1,081 2 CAIDA
AS1226 California Department of Technology 🇺🇸 US 5 32 238 CAIDA
AS6099 Alameda County Office of Education 🇺🇸 US 2 19 90 CAIDA
AS55064 Arista Networks, Inc. 🇺🇸 US 2 4 60 CAIDA
AS17035 NBCUniversal 🇺🇸 US 2 38 40 CAIDA
AS40620 QIAGEN Redwood City, Inc. 🇺🇸 US 2 5 27 CAIDA
AS395240 CARIAD, Inc. 🇺🇸 US 2 2 5 CAIDA
AS10309 County of Marin 🇺🇸 US 0 12 130 CAIDA
AS46341 California Public Utilities Commission 🇺🇸 US 0 19 126 CAIDA
AS6379 A-Link Network Services, Inc. 🇺🇸 US 0 20 108 CAIDA
AS54113 Fastly, Inc. 🇺🇸 US 0 604 105 CAIDA
AS14203 Juniper Networks, Inc. 🇺🇸 US 0 21 103 CAIDA
AS22700 University of San Francisco 🇺🇸 US 0 4 88 CAIDA
AS20066 Supermicro Computer 🇺🇸 US 0 5 87 CAIDA
AS25875 FriendFinder Networks Inc 🇺🇸 US 0 23 86 CAIDA
AS46826 Razzo Link, Inc. 🇺🇸 US 0 3 84 CAIDA
AS16920 Wind River Systems, Inc. 🇺🇸 US 0 15 84 CAIDA
AS36040 Google (Global Cache) 🇺🇸 US 0 85 80 CAIDA
AS32504 Intelletrace 🇺🇸 US 0 2 78 CAIDA
AS395976 Comcast Cable Communications, LLC 🇺🇸 US 0 2 71 CAIDA
AS63435 County of Monterey 🇺🇸 US 0 5 67 CAIDA
AS23154 Sanmina-SCI Corporation 🇺🇸 US 0 61 64 CAIDA
AS32537 Xilinx Incorporated 🇺🇸 US 0 20 64 CAIDA
AS395011 City and County of San Francisco 🇺🇸 US 0 1 60 CAIDA
AS19126 KIZA 🇺🇸 US 0 2 59 CAIDA
AS46186 Gilead Sciences 🇺🇸 US 0 8 56 CAIDA
AS11328 Bio-Rad Laboratories, Inc. 🇺🇸 US 0 2 56 CAIDA
AS29878 Community Hospital of the Monterey Peninsula 🇺🇸 US 0 2 56 CAIDA
AS55059 Microwave Power Products, Inc. 🇺🇸 US 0 2 55 CAIDA
AS35928 BECKMAN COULTER, INC. 🇺🇸 US 0 89 53 CAIDA
AS17117 RITSnet, Inc. 🇺🇸 US 0 14 51 CAIDA
AS5081 CLARE COMPUTER SOLUTIONS 🇺🇸 US 0 1 49 CAIDA
AS23472 SonicWALL, Inc. 🇺🇸 US 0 3 46 CAIDA
AS53985 DODGE & COX 🇺🇸 US 0 7 41 CAIDA
AS46864 Workday, Inc. 🇺🇸 US 0 4 40 CAIDA
AS22369 Cloudmylab.com 🇺🇸 US 0 13 39 CAIDA
AS397030 Hilton Worldwide Holdings Inc 🇺🇸 US 0 1 39 CAIDA
AS46305 Universal Audio, Inc. 🇺🇸 US 0 1 39 CAIDA
AS26325 Technology Credit Union 🇺🇸 US 0 3 39 CAIDA
AS393305 G2 Bankruptcy Risk Solutions, Inc. 🇺🇸 US 0 1 39 CAIDA
AS395132 Meriwest Credit Union 🇺🇸 US 0 2 39 CAIDA
AS10982 TiVo, Inc. 🇺🇸 US 0 17 38 CAIDA
AS14388 Bronco Wine Co. 🇺🇸 US 0 7 38 CAIDA
AS36776 Five9 Inc. 🇺🇸 US 0 43 38 CAIDA
AS40039 ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED 🇺🇸 US 0 1 38 CAIDA
AS30175 EPICOR 🇺🇸 US 0 32 35 CAIDA
AS36838 INFOIMAGE OF CALIFORNIA 🇺🇸 US 0 5 35 CAIDA
AS396943 City of Sunnyvale 🇺🇸 US 0 4 34 CAIDA
AS11829 Cadence Design Systems, Inc. 🇺🇸 US 0 6 34 CAIDA
AS18880 Lam Research Corporation 🇺🇸 US 0 20 32 CAIDA
AS397258 Graton Resort and Casino 🇺🇸 US 0 1 31 CAIDA
AS33161 Chumash Casino Resort 🇺🇸 US 0 2 31 CAIDA
AS395323 County of San Mateo 🇺🇸 US 0 3 29 CAIDA
AS62508 GlobalLogic Inc. 🇺🇸 US 0 3 29 CAIDA
AS14706 Monterey Bay Aquarium Research Institute 🇺🇸 US 0 1 28 CAIDA
AS17003 Zoetis Inc. 🇺🇸 US 0 6 28 CAIDA
AS398732 Deutscher Properties Corporation 🇺🇸 US 0 1 28 CAIDA
AS22216 Siemens Corporation 🇺🇸 US 0 14 28 CAIDA
AS19099 - 0 2 28 CAIDA
AS395844 LUSD 🇺🇸 US 0 1 28 CAIDA
AS12054 Alameda County 🇺🇸 US 0 5 28 CAIDA
AS33382 CRYPTIC STUDIOS, INC. 🇺🇸 US 0 1 28 CAIDA
AS5098 Opus One Winery, LLC 🇺🇸 US 0 1 28 CAIDA
AS4182 MLSListings inc. 🇺🇸 US 0 1 28 CAIDA
AS32319 Marqeta, Inc. 🇺🇸 US 0 4 27 CAIDA
AS397620 City of Menlo Park 🇺🇸 US 0 1 27 CAIDA
AS395757 Santa Clara County Federal Credit Union 🇺🇸 US 0 1 27 CAIDA
AS33311 TOPCON POSITIONING SYSTEMS INC 🇺🇸 US 0 1 27 CAIDA
AS14421 Theravance Biopharma US, LLC 🇺🇸 US 0 1 27 CAIDA
AS36761 Hearst-Argyle Television, Inc. 🇺🇸 US 0 2 27 CAIDA
AS54654 Mills College 🇺🇸 US 0 1 27 CAIDA
AS40385 Saint Mary's College of California 🇺🇸 US 0 1 27 CAIDA
AS54104 InfoObjects Inc. 🇺🇸 US 0 1 27 CAIDA
AS53497 WebPerception, LLC 🇺🇸 US 0 3 26 CAIDA
AS3708 Pacific Biosciences of California, Inc. 🇺🇸 US 0 1 26 CAIDA
AS5091 Stripe, Inc. 🇺🇸 US 0 19 26 CAIDA
AS46520 California Department of Justice 🇺🇸 US 0 4 26 CAIDA
AS395210 Western Carriers Inc. 🇺🇸 US 0 1 24 CAIDA
AS397765 California College of the Arts 🇺🇸 US 0 1 21 CAIDA
AS22695 Playground Global, LLC 🇺🇸 US 0 1 21 inferred
AS54201 We Link Networks LLC 🇺🇸 US 0 27 21 inferred
AS204662 Harmonic Technologies France SAS 🇫🇷 FR 0 0 21 inferred
AS32928 ITechTool Incorporated 🇺🇸 US 0 1 20 CAIDA
AS46216 FirmaTRUST Consulting 🇺🇸 US 0 1 18 CAIDA
AS394993 Santa Clara Valley Transportation Authority 🇺🇸 US 0 3 17 CAIDA
AS18841 Trimble, Inc. 🇺🇸 US 0 3 16 CAIDA
AS11483 Conviva, Inc. 🇺🇸 US 0 6 16 CAIDA
AS30051 Santa Clara County 🇺🇸 US 0 6 16 CAIDA
AS27580 CONVERGEONE HOLDINGS, INC. 🇺🇸 US 0 3 16 CAIDA
AS11212 COUNTY OF SONOMA 🇺🇸 US 0 3 15 CAIDA
AS20325 Patelco Credit Union 🇺🇸 US 0 3 14 CAIDA
AS46798 Service Station Computer Systems, Inc. 🇺🇸 US 0 2 14 CAIDA
AS54469 City of Vacaville 🇺🇸 US 0 2 14 CAIDA
AS394516 County of Napa MIS 🇺🇸 US 0 2 14 CAIDA
AS2894 California Department of Water Resources 🇺🇸 US 0 24 14 CAIDA
AS397994 Xactly Corporation 🇺🇸 US 0 3 11 CAIDA
AS46425 Salinas Valley Memorial Hospital 🇺🇸 US 0 1 10 CAIDA
AS394763 Contra Costa County Employees Retirement Association 🇺🇸 US 0 1 10 CAIDA
AS11574 San Francisco Baseball Associates LLC 🇺🇸 US 0 1 8 CAIDA
AS398572 Monolithic Power Systems,Inc 🇺🇸 US 0 2 8 CAIDA
AS398469 Fox Thermal Instruments Inc 🇺🇸 US 0 1 8 CAIDA
AS13511 Univision Communications Inc. 🇺🇸 US 0 12 8 CAIDA
AS10780 Pure Storage, INC. 🇺🇸 US 0 19 8 CAIDA
AS395882 Power Integrations, INC. 🇺🇸 US 0 1 8 CAIDA
AS54269 Provident Credit Union 🇺🇸 US 0 1 7 CAIDA
AS54169 Marin General Hospital 🇺🇸 US 0 1 7 CAIDA
AS22020 Magpie Internet Communications, Corp. 🇺🇸 US 0 2 7 CAIDA
AS54656 California Water Service Company 🇺🇸 US 0 1 7 CAIDA
AS19637 Avago Technologies U.S. Inc. 🇺🇸 US 0 96 7 CAIDA
AS31802 City of San Rafael 🇺🇸 US 0 1 7 CAIDA
AS18556 State Compensation Insurance Fund 🇺🇸 US 0 2 7 CAIDA
AS25878 Quinstreet, Inc. 🇺🇸 US 0 7 7 CAIDA
AS25632 NorthBay Healthcare Corporation 🇺🇸 US 0 1 7 CAIDA
AS22768 SYNERGY BROADBAND 🇺🇸 US 0 48 7 CAIDA
AS397450 City of Fairfield 🇺🇸 US 0 1 7 CAIDA
AS396337 Dreisbach Enterprises, Inc. 🇺🇸 US 0 2 6 CAIDA
AS40639 F Korbel & Bros Inc 🇺🇸 US 0 2 6 CAIDA
AS12222 Akamai Technologies, Inc. 🇺🇸 US 0 31 6 CAIDA
AS5774 United States Postal Service 🇺🇸 US 0 30 5 CAIDA
AS22024 Splunk, Inc. 🇺🇸 US 0 7 5 CAIDA
AS19622 Genomic Health, Inc. 🇺🇸 US 0 2 5 CAIDA
AS393355 SAMSUNG RESEARCH AMERICA, INC. 🇺🇸 US 0 2 5 CAIDA
AS400484 Natividad Medical Center 🇺🇸 US 0 1 5 CAIDA
AS22317 F5, Inc. 🇺🇸 US 0 11 4 inferred
AS2003 Electric Power Research Institute 🇺🇸 US 0 28 4 CAIDA
AS394557 Roku Inc. 🇺🇸 US 0 0 3 inferred
AS26476 CyberU, Inc. 🇺🇸 US 0 3 3 CAIDA
AS13843 Phoenix American Inc. 🇺🇸 US 0 1 3 CAIDA
AS18663 University of the Pacific 🇺🇸 US 0 3 2 CAIDA
AS26211 Proofpoint, Inc. 🇺🇸 US 0 52 2 CAIDA
AS54661 Intercontinental Exchange, Inc. 🇺🇸 US 0 4 2 CAIDA
AS393914 Invitae Corp 🇺🇸 US 0 2 2 CAIDA
AS401582 San Jose Sharks, LLC 🇺🇸 US 0 1 2 CAIDA
AS18695 Bay Medical Management, LLC 🇺🇸 US 0 1 2 CAIDA
AS16758 Ricoh USA, Inc. 🇺🇸 US 0 32 1 CAIDA
AS11031 Orbis Investments (Canada) Limited 🇨🇦 CA 0 11 1 CAIDA
AS54246 AFNI, Inc. 🇺🇸 US 0 3 1 CAIDA
AS7235 LanMinds, Inc. 🇺🇸 US 0 2 1 CAIDA
AS33228 SoftIron 🇺🇸 US 0 1 1 CAIDA
AS397777 Torani 🇺🇸 US 0 1 1 CAIDA

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.