206208 looking glass

AS33667 Comcast Cable Communications, LLC 🇺🇸 US

Announcing 114 prefixes, seen at the RIS collectors.

IPv4 prefixes
56
61,440 (240 × /24)
IPv6 prefixes
58
8 × /32
Upstreams
2
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
140
transit customers observed
Customer cone
19,779
ASes reachable through it

Registry and operator data

AS number
AS33667
Name
Comcast Cable Communications, LLC
Organisation
Comcast - Central California
Country
🇺🇸 US
RIR
ARIN
Allocated
2005-02-16
Network type
Cable/DSL/ISP
Scope
Regional
Peering policy
Restrictive
PeeringDB
net/10089
Facilities
1

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

102 valid (89.5%) 0 invalid (0.0%) 12 no ROA (10.5%)

Upstreams

Networks seen providing transit to this one

Network Country Cone IPv4 prefixes Paths Source
AS3356 Lumen (Level 3) 🇺🇸 US 70,621 2,070 3,788 CAIDA
AS7922 Comcast Cable Communications, LLC 🇺🇸 US 25,624 426 5,653 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
AS13335 Cloudflare, Inc. 🇺🇸 US 19,666 2,617 74 CAIDA
AS20940 Akamai International B.V. 🇳🇱 NL 14 3,954 158 CAIDA
AS1226 California Department of Technology 🇺🇸 US 5 32 14 CAIDA
AS23338 DCS Pacific Star, LLC 🇺🇸 US 2 52 857 CAIDA
AS6099 Alameda County Office of Education 🇺🇸 US 2 19 28 CAIDA
AS40620 QIAGEN Redwood City, Inc. 🇺🇸 US 2 5 14 CAIDA
AS55064 Arista Networks, Inc. 🇺🇸 US 2 4 9 inferred
AS17035 NBCUniversal 🇺🇸 US 2 38 2 CAIDA
AS2894 California Department of Water Resources 🇺🇸 US 0 24 371 CAIDA
AS11620 Succeed.Net 🇺🇸 US 0 26 275 CAIDA
AS32688 THE GOLDEN 1 CREDIT UNION 🇺🇸 US 0 12 213 CAIDA
AS46341 California Public Utilities Commission 🇺🇸 US 0 19 204 CAIDA
AS25753 California Public Employees' Retirement System 🇺🇸 US 0 20 186 CAIDA
AS396513 County of Fresno 🇺🇸 US 0 4 172 CAIDA
AS11829 Cadence Design Systems, Inc. 🇺🇸 US 0 6 169 CAIDA
AS46867 Sebastian 🇺🇸 US 0 11 145 CAIDA
AS53782 Pacific Coast Producers 🇺🇸 US 0 3 126 CAIDA
AS397062 Sun-Maid Growers of California 🇺🇸 US 0 6 115 CAIDA
AS17381 Williams-Sonoma 🇺🇸 US 0 13 92 CAIDA
AS14443 Broadridge Financial Solutions, Inc. 🇺🇸 US 0 3 88 CAIDA
AS13395 SMART CITY NETWORKS, LIMITED PARTNERSHIP 🇺🇸 US 0 2 86 CAIDA
AS36040 Google (Global Cache) 🇺🇸 US 0 85 84 CAIDA
AS397909 Elk Grove Unified School District 🇺🇸 US 0 10 78 CAIDA
AS22768 SYNERGY BROADBAND 🇺🇸 US 0 48 78 CAIDA
AS10309 County of Marin 🇺🇸 US 0 12 78 CAIDA
AS54113 Fastly, Inc. 🇺🇸 US 0 607 77 CAIDA
AS11681 Integrity Networks 🇺🇸 US 0 4 76 CAIDA
AS18841 Trimble, Inc. 🇺🇸 US 0 3 68 CAIDA
AS27580 CONVERGEONE HOLDINGS, INC. 🇺🇸 US 0 3 66 CAIDA
AS394377 County of Tulare 🇺🇸 US 0 3 61 CAIDA
AS27009 Clovis Unified School District 🇺🇸 US 0 2 60 CAIDA
AS6379 A-Link Network Services, Inc. 🇺🇸 US 0 20 56 CAIDA
AS22700 University of San Francisco 🇺🇸 US 0 4 52 CAIDA
AS46902 California State Teachers Retirement System (CalSTRS) 🇺🇸 US 0 3 51 CAIDA
AS30175 EPICOR 🇺🇸 US 0 32 50 CAIDA
AS36838 INFOIMAGE OF CALIFORNIA 🇺🇸 US 0 5 50 CAIDA
AS397787 Black Oak Casino 🇺🇸 US 0 2 49 CAIDA
AS398204 City of Stockton 🇺🇸 US 0 2 46 CAIDA
AS22617 Superior Court of California, County of Sacramento 🇺🇸 US 0 2 44 CAIDA
AS14203 Juniper Networks, Inc. 🇺🇸 US 0 21 42 CAIDA
AS397813 Clarke Broadcasting Corporation 🇺🇸 US 0 1 42 CAIDA
AS46826 Razzo Link, Inc. 🇺🇸 US 0 3 42 CAIDA
AS16920 Wind River Systems, Inc. 🇺🇸 US 0 15 42 CAIDA
AS23411 - 0 1 41 CAIDA
AS395536 Trimark Associates, inc 🇺🇸 US 0 1 41 CAIDA
AS32504 Intelletrace 🇺🇸 US 0 2 39 CAIDA
AS55032 The Jackson Laboratory 🇺🇸 US 0 17 39 CAIDA
AS12054 Alameda County 🇺🇸 US 0 5 36 CAIDA
AS13511 Univision Communications Inc. 🇺🇸 US 0 12 34 CAIDA
AS11574 San Francisco Baseball Associates LLC 🇺🇸 US 0 1 34 CAIDA
AS398572 Monolithic Power Systems,Inc 🇺🇸 US 0 2 32 CAIDA
AS23154 Sanmina-SCI Corporation 🇺🇸 US 0 60 29 CAIDA
AS19126 KIZA 🇺🇸 US 0 2 28 CAIDA
AS55059 Microwave Power Products, Inc. 🇺🇸 US 0 2 28 CAIDA
AS32537 Xilinx Incorporated 🇺🇸 US 0 20 28 CAIDA
AS35928 BECKMAN COULTER, INC. 🇺🇸 US 0 89 28 CAIDA
AS11328 Bio-Rad Laboratories, Inc. 🇺🇸 US 0 2 28 CAIDA
AS46186 Gilead Sciences 🇺🇸 US 0 8 28 CAIDA
AS5081 CLARE COMPUTER SOLUTIONS 🇺🇸 US 0 1 25 CAIDA
AS54469 City of Vacaville 🇺🇸 US 0 2 20 CAIDA
AS400046 Zinus Inc 🇺🇸 US 0 4 18 CAIDA
AS11465 Kaweah Delta Health Care District 🇺🇸 US 0 1 18 CAIDA
AS394516 County of Napa MIS 🇺🇸 US 0 2 18 CAIDA
AS36835 Nugget Market 🇺🇸 US 0 1 18 CAIDA
AS20325 Patelco Credit Union 🇺🇸 US 0 3 18 CAIDA
AS396262 Fresno County Sheriff's Office 🇺🇸 US 0 1 17 CAIDA
AS32928 ITechTool Incorporated 🇺🇸 US 0 1 17 CAIDA
AS394121 Valley Children's Hospital 🇺🇸 US 0 1 17 CAIDA
AS46798 Service Station Computer Systems, Inc. 🇺🇸 US 0 2 16 CAIDA
AS62508 GlobalLogic Inc. 🇺🇸 US 0 3 15 CAIDA
AS33161 Chumash Casino Resort 🇺🇸 US 0 2 15 CAIDA
AS33311 TOPCON POSITIONING SYSTEMS INC 🇺🇸 US 0 1 14 CAIDA
AS33382 CRYPTIC STUDIOS, INC. 🇺🇸 US 0 1 14 CAIDA
AS10982 TiVo, Inc. 🇺🇸 US 0 17 14 CAIDA
AS395844 LUSD 🇺🇸 US 0 1 14 CAIDA
AS36761 Hearst-Argyle Television, Inc. 🇺🇸 US 0 2 14 CAIDA
AS398732 Deutscher Properties Corporation 🇺🇸 US 0 1 14 CAIDA
AS396943 City of Sunnyvale 🇺🇸 US 0 4 14 CAIDA
AS40385 Saint Mary's College of California 🇺🇸 US 0 1 14 CAIDA
AS5098 Opus One Winery, LLC 🇺🇸 US 0 1 14 CAIDA
AS22216 Siemens Corporation 🇺🇸 US 0 14 14 CAIDA
AS397620 City of Menlo Park 🇺🇸 US 0 1 14 CAIDA
AS46216 FirmaTRUST Consulting 🇺🇸 US 0 1 14 CAIDA
AS5091 Stripe, Inc. 🇺🇸 US 0 19 14 CAIDA
AS46520 California Department of Justice 🇺🇸 US 0 4 14 CAIDA
AS19099 - 0 2 14 CAIDA
AS18880 Lam Research Corporation 🇺🇸 US 0 20 14 CAIDA
AS53497 WebPerception, LLC 🇺🇸 US 0 3 14 CAIDA
AS4182 MLSListings inc. 🇺🇸 US 0 1 14 CAIDA
AS54104 InfoObjects Inc. 🇺🇸 US 0 1 14 CAIDA
AS3708 Pacific Biosciences of California, Inc. 🇺🇸 US 0 1 14 CAIDA
AS14421 Theravance Biopharma US, LLC 🇺🇸 US 0 1 14 CAIDA
AS14706 Monterey Bay Aquarium Research Institute 🇺🇸 US 0 1 14 CAIDA
AS395210 Western Carriers Inc. 🇺🇸 US 0 1 14 CAIDA
AS395757 Santa Clara County Federal Credit Union 🇺🇸 US 0 1 14 CAIDA
AS63435 County of Monterey 🇺🇸 US 0 5 14 CAIDA
AS395323 County of San Mateo 🇺🇸 US 0 3 14 CAIDA
AS393935 Sierra Central Credit Union 🇺🇸 US 0 1 14 CAIDA
AS17003 Zoetis Inc. 🇺🇸 US 0 6 14 CAIDA
AS54654 Mills College 🇺🇸 US 0 1 14 CAIDA
AS32319 Marqeta, Inc. 🇺🇸 US 0 4 14 CAIDA
AS397765 California College of the Arts 🇺🇸 US 0 1 13 CAIDA
AS396484 City of Roseville 🇺🇸 US 0 1 12 CAIDA
AS22695 Playground Global, LLC 🇺🇸 US 0 1 12 inferred
AS54201 We Link Networks LLC 🇺🇸 US 0 27 12 inferred
AS204662 Harmonic Technologies France SAS 🇫🇷 FR 0 0 12 inferred
AS394763 Contra Costa County Employees Retirement Association 🇺🇸 US 0 1 12 CAIDA
AS395011 City and County of San Francisco 🇺🇸 US 0 1 11 inferred
AS54169 Marin General Hospital 🇺🇸 US 0 1 11 CAIDA
AS54269 Provident Credit Union 🇺🇸 US 0 1 11 CAIDA
AS394304 Sacramento Downtown Arena, LLC 🇺🇸 US 0 4 10 CAIDA
AS23472 SonicWALL, Inc. 🇺🇸 US 0 3 10 CAIDA
AS397450 City of Fairfield 🇺🇸 US 0 1 10 CAIDA
AS22020 Magpie Internet Communications, Corp. 🇺🇸 US 0 2 10 CAIDA
AS31802 City of San Rafael 🇺🇸 US 0 1 10 CAIDA
AS18556 State Compensation Insurance Fund 🇺🇸 US 0 2 10 CAIDA
AS25878 Quinstreet, Inc. 🇺🇸 US 0 7 10 CAIDA
AS19637 Avago Technologies U.S. Inc. 🇺🇸 US 0 96 10 CAIDA
AS11483 Conviva, Inc. 🇺🇸 US 0 6 9 CAIDA
AS398214 Prominence Health Plan 🇺🇸 US 0 1 9 CAIDA
AS54656 California Water Service Company 🇺🇸 US 0 1 8 CAIDA
AS25632 NorthBay Healthcare Corporation 🇺🇸 US 0 1 8 CAIDA
AS396505 ENLOE MEDICAL CENTER 🇺🇸 US 0 1 6 CAIDA
AS46201 County of Yuba 🇺🇸 US 0 1 6 CAIDA
AS400147 City of Modesto 🇺🇸 US 0 1 6 CAIDA
AS22317 F5, Inc. 🇺🇸 US 0 11 6 inferred
AS20464 HP Inc. 🇺🇸 US 0 23 6 CAIDA
AS5774 United States Postal Service 🇺🇸 US 0 30 5 CAIDA
AS26668 Stanford Federal Credit Union 🇺🇸 US 0 1 2 inferred
AS1055 City of Manteca 🇺🇸 US 0 1 2 CAIDA
AS27437 IGN Entertainment 🇺🇸 US 0 2 2 CAIDA
AS54246 AFNI, Inc. 🇺🇸 US 0 3 2 CAIDA
AS399761 Stream IT Networks LLC 🇺🇸 US 0 5 2 CAIDA
AS54767 Restoration Hardware, Inc. 🇺🇸 US 0 1 2 CAIDA
AS22414 Craigslist, Inc. 🇺🇸 US 0 1 1 CAIDA
AS20383 Exchange Bank 🇺🇸 US 0 2 1 CAIDA
AS19985 California Department of Insurance 🇺🇸 US 0 1 1 CAIDA
AS11733 E. & J. Gallo Winery Inc. 🇺🇸 US 0 1 1 CAIDA
AS18663 University of the Pacific 🇺🇸 US 0 3 1 CAIDA
AS393914 Invitae Corp 🇺🇸 US 0 2 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.