Report for 33491

Name

COMCAST-33491 - Comcast Cable Communications, LLC, US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

33491 COMCAST-33491 - Comcast Cable Communications, LLC, US

  Adjacency:   155  Upstream:     1  Downstream:   154
  Upstream Adjacent AS list
    AS7922          COMCAST-7922 - Comcast Cable Communications, LLC, US
  Downstream Adjacent AS list
    AS30395         SAHS - SWEDISHAMERICAN HEALTH SYSTEM CORPORATION, US
    AS33512         GATEWAY-PROCESSING-SERVICES - Gateway Processing Services, US
    AS22187         RAULAND-BORG - Rauland-Borg Corporation, US
    AS11632         ASPS-HQ-ASN01 - American Society of Plastic Surgeons, US
    AS10425         -Reserved AS-, ZZ
    AS13430         THEWISP-NWIL - DC COMPUTERS, US
    AS13950         DLS-INTERNET-SERVICES - DLS Internet Services, Inc, US
    AS13953         SVCC-EDU - Sauk Valley Community College, US
    AS13983         ALE-SOLUTIONS-INC - ALE Solutions Inc, US
    AS14386         COMGRAPHICS-CGICHICAGO - Com-graphics, Inc., US
    AS14046         KCOL - Indiana Telephone Network, US
    AS14688         AS14688 - GlobalView Software Inc., US
    AS14414         CROSSBRDG-ASN01 - Telit IoT Platforms, LLC, US
    AS13744         THP-BGP - TYNDALE HOUSE PUBLISHERS, US
    AS14711         BRKTOOLS - INGERSOLL CUTTING TOOL COMPANY, US
    AS12250         EHSC - EDWARD HEALTH SERVICE CORP, US
    AS15120         RHS-AS - Rockford Health System, US
    AS14858         HISNET - Hanson Information Systems, Inc.  Family Net, US
    AS16706         ORTHONE - NORTHEAST ORTHOPAEDIC CLINIC, LLP, US
    AS17010         HOOSIER-ENERGY - Hoosier Energy Rural Electric Cooperative, Inc., US
    AS16627         BCCA-AS - Board of Commissioners of the County of Allen, US
    AS17091         HOLLCORP - Hollister Incorporated, US
    AS17196         COD-GE-IL - College of duPage, US
    AS17317         THING5-NA - Thing5, LLC, US
    AS19247         AS19247 - Northwestern Memorial Hospital, US
    AS19855         MASERGY - Masergy Communications, Inc., US
    AS19265         MHS-MMC-2401 - Memorial Medical Center, US
    AS19131         LIVESS-01 - Living Essentials, LLC, US
    AS19980         CAREERED - Career Education Corporation, US
    AS19941         CONCORDIA-UNIVERSITY-CHICAGO - Concordia University Chicago, US
    AS18743         EVERENCE-SERVICES-LLC - MENNONITE MUTUAL AID, US
    AS17035         NBCUNI-17035 - NBCUniversal, US
    AS20441         SL-2182-20441 - SAGILITY LLC, US
    AS20315         MCHENRY-COUNTY-AS1 - McHenry County, US
    AS21611         NET-WSGWIN - Wilson Sporting Goods Co., US
    AS21680         GWLNET - Empower Retirement, LLC, US
    AS21798         INTERNATIONALDELIVERS - International Truck and Engine Corp, US
    AS25716         INGERSOLL-RAND - Trane Technologies Company LLC, US
    AS23166         NORVAX - Norvax, LLC, US
    AS22448         MICRO-SPEC - Microcomputer Specialists, Inc., US
    AS21796         WIT-ASN-01 - WITHAM HOSPITAL, US
    AS21514         LEGACY - LEGACY MARKETING PARTNERS, L.L.C., US
    AS26541         GUAVA-AS - GuavaTech Inc., US
    AS26532         MACLEAN-FOGG - Mac Lean-Fogg Company, US
    AS26255         OAKTONCOMMUNITYCOLLEGE - Oakton Community College, US
    AS26820         HERFF-JONES - Herff Jones, US
    AS26840         ABG - Advanced Business Group, LLC, US
    AS26028         PANDUIT - Panduit Corp., US
    AS26950         LIPPERT-AS1 - Lippert Components Manufacturing, Inc., US
    AS27289         -Reserved AS-, ZZ
    AS27004         SFB - Star Financial Bank, US
    AS27369         SWEDISH - Swedish Covenant Hospital, US
    AS26966         SPRAY-AS - Spraying Systems Co., US
    AS26912         NCH-AS1 - Northwest Community Hospital, US
    AS20452         BSU - BALL STATE UNIVERSITY, US
    AS29817         LCB-ARIN-113 - LAKE CITY BANK, US
    AS29891         NCCWO-ASN1-VZBLVL3CMCST - National Cable Communications LLC, US
    AS30553         THOREK-30553 - Thorek Memorial Hospital, US
    AS30302         ASPEN-DENTAL-INC - ASPEN DENTAL MANAGEMENT, INC., US
    AS27562         RHC-INT - Presence Health Network, US
    AS27482         AECP-AS - American Eagle Computer Products, Inc., US
    AS16593         FMCIN - First Merchants Corporation, US
    AS32143         VNILESASNET - The Village of Niles, US
    AS31790         SANDC-CA - S&C Electric Canada Ltd., CA
    AS32304         AS-NATUSMED - Natus Medical Inc., US
    AS32321         NEWARKNET - NEWARK NET, US
    AS32649         FE-DC-BGP - FRANKLIN ELECTRIC CO., INC., US
    AS32528         ABBOTT-LABS-2 - ROSS PRODUCTS DIVISION, US
    AS33019         WHEATONCOLLEGE - Wheaton College, US
    AS32985         FSS-COMCAST-ASN01 - Follett Content, US
    AS32280         THE-EWSCRIPPS - The E.W. Scripps Company, US
    AS33248         COE-AS - City of Evanston, Illinois, US
    AS30573         OLDSECONDBANCORP - Old Second Bancorp, ZZ
    AS33461         COMMUNITY-FOUNDATION-OF-NORTHWEST-INDIANA - COMMUNITY FOUNDATION OF NW INDIANA, US
    AS33460         WAUBONSEE-COMMUNITY-COLLEGE - Waubonsee Community College, US
    AS35928         BECKMAN-COULTER-ASN - BECKMAN COULTER, INC., US
    AS36319         ENWHC - NorthShore University HealthSystem, US
    AS36373         COMMUNITY-HEALTH-NETWORK - Community Hospitals, Indianapolis, US
    AS36478         ALLIANTCU - Alliant Credit Union, US
    AS36460         WATTSCORPORATEASN - Watts Water Technologies, Inc., US
    AS36443         AUNALYTICS-INC - Aunalytics, Inc, US
    AS3751          PHONAK-LLC - Phonak, LLC, US
    AS36040         YOUTUBE - Google LLC, US
    AS393405        SCCUSD-AS - Saint Charles Community Unit School District 303, US
    AS393745        WI-TRONIX-AS1 - Wi-Tronix LLC, US
    AS393677        HLS - Hematogenix Laboratory Services, LLC, US
    AS393863        DMA-IND-DC - DMA, US
    AS393781        HELMGROUP-FREEPORT - Helm Group, Inc., US
    AS393505        CENTRACU - Centra Credit Union, US
    AS393998        EGV-BGP - Elk Grove Village Police Department, US
    AS394115        SRALAB-AS - Rehabilitation Institute of Chicago, US
    AS394918        TBI-ASN-3 - TrueBlue, Inc., US
    AS395490        LAKECOUNTYILLINOISGOVERNMENT - County of Lake, US
    AS395451        HOSTIT - HostIT Servers, US
    AS394845        REMPREX-BGP - REMPREX, LLC, US
    AS395691        XTTRIUM-ASN - XTTRIUM LABORATORIES, Inc., US
    AS395835        AJA-ASN - AJ Antunes & Co, US
    AS395581        SIMSMM-US-INET - Metal Management, Inc., US
    AS394518        CHSD230 - Consolidated High School District 230, US
    AS396036        CPI-ASN - CPI, US
    AS396492        DBISP - dbISP, LLC, US
    AS396307        SOUTHERNIMPERIAL - Southern Imperial Inc., US
    AS396247        AESHS125 - Adlai E. Stevenson High School, US
    AS396021        COMCAST-MES - Comcast Cable Communications, LLC, US
    AS393893        ACS-ASN-01 - Alliance Cloud Services LLC, US
    AS397512        BGP-HQ-01 - The College of American Pathologists, US
    AS396995        BGP - Morris Hospital, US
    AS397567        ALERA-GROUP - Alera Group, Inc, US
    AS398030        ATFBGP-LIN - ATF, INC., US
    AS397936        DCCOMP-IL-DXN - DC COMPUTERS, US
    AS396831        -Reserved AS-, ZZ
    AS393323        WATERFURNACE - Waterfurnace International, Inc, US
    AS398421        SACS-CMT - Southwest Allen County Schools, US
    AS399488        DSB - Demotte State Bank, US
    AS398752        OUR-SUNDAY-VISITOR - Our Sunday Visitor, US
    AS400236        EACS-5 - East Allen County Schools, US
    AS400017        AS-CORP-RM-817 - Ruoff Mortgage, US
    AS40038         MORAINEVALLEY-NET - Moraine Valley Community College, US
    AS400652        KRV-GSH-01 - Keystone RV Company, US
    AS399514        HORIZONBANK - Horizon Bank, US
    AS401245        GOSHEN-HEALTH - GOSHEN HEALTH, US
    AS401462        SUBARU-SIA - Subaru of Indiana Automotive, Inc., US
    AS40417         INTERACTIONSCORP - Interactions Corporation, US
    AS40668         FENWAL-INCORPORATED - Fenwal, Inc., US
    AS40628         OKLAHOMA-OMES - Oklahoma Office of Management & Enterprise Services, US
    AS40710         CLC-98-ILLINOIS - College of Lake County, US
    AS46398         PII - Taylor Corporation, US
    AS47092         ITRNA - ITR America, LLC, US
    AS4912          CENTIER - CENTIER BANK, US
    AS54056         PCA-AS - Packaging Corporation of America, US
    AS4917          AMDOCS-AS - AMDOCS Inc., US
    AS46815         -Reserved AS-, ZZ
    AS40801         LEWISU-ROMEOVILLE - Lewis University, US
    AS40520         STBH-ORG - Saint Bernard Hospital, US
    AS54278         -Reserved AS-, ZZ
    AS54066         WURTHBSC - Wurth Baer Supply Company, US
    AS401102        WATCHFIRE-HQ-ASN-1 - Watchfire, US
    AS54671         WPCASN - WALSWORTH PUBLISHING COMPANY, US
    AS55037         FIRST-BUSEY-CORPORATION - Busey Bank, US
    AS62569         -Reserved AS-, ZZ
    AS54997         PURDUE-FW - Purdue University, US
    AS54971         BROWN-TECHNOLOGIES - Brown Technologies, LLC, US
    AS63206         INOVA-AS - INOVA Federal Credit Union, US
    AS63310         AS-NABP - NABP, US
    AS63207         LBJI-ASN - Lakeshore Bone & Joint, Institute P.C., US
    AS6479          MCHENRY - McHenryCom Company, US
    AS7380          AVANTCREDIT - Avant, Inc., US
    AS64230         MBX-LIB - Motherboard Express Company, US
    AS7767          EB - Encyclopaedia Britannica, US
    AS63487         FELLOWES-ASN - Fellowes Inc., US
    AS62826         CSO-AS - CHICAGO SYMPHONY ORCHESTRA, US
    AS54583         54583 - American College of Surgeons, US
    AS398135        NWNC - SKYWEB OF ILLINOIS, INC., US
    AS33331         VALIDUSA1 - Valid USA, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4365  AS33491        ORG+TRN Originate:      49664 /16.40  Transit:     125952 /15.06 COMCAST-33491 - Comcast Cable Communications, LLC, US

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
 8494 AS33491       COMCAST-33491 - Comcast Cable Communications,     91      7      2     86      5   5.49%


  Prefix               AS Path                              Aggregation Suggestion
  23.177.32.0/24       4777 2516 7922 33491   
  24.104.47.0/24       4777 2516 7922 33491   
  50.201.119.0/24      4777 2516 7922 33491   
  50.201.191.0/24      4777 2516 7922 33491   
  50.202.73.0/24       4777 2516 7922 33491   
  50.203.174.0/24      4777 2516 7922 33491   
  50.203.242.0/24      4777 2516 7922 33491   
  50.204.23.0/24       4777 2516 7922 33491   
  50.204.91.0/24       4777 2516 7922 33491   
  50.204.189.0/24      4777 2516 7922 33491   
  50.205.54.0/23       4777 2516 7922 33491   
  50.205.166.0/24      4777 2516 7922 33491   
  50.206.250.0/24      4777 2516 7922 33491   
  50.207.233.0/24      4777 2516 7922 33491   
  50.216.36.0/24       4777 2516 7922 33491   
  50.216.227.0/24      4777 2516 7922 33491   
  50.217.237.0/24      4777 2516 7922 33491   
  50.218.78.0/24       4777 2516 7922 33491   
  50.219.59.0/24       4777 2516 7922 33491   
  50.219.60.0/24       4777 2516 7922 33491   
  50.220.4.0/22        4777 2516 7922 33491   
  50.220.44.0/24       4777 2516 7922 33491   
  50.220.116.0/24      4777 2516 7922 33491   
  50.220.130.0/23      4777 2516 7922 33491   
  50.220.188.0/24      4777 2516 7922 33491   
  50.224.45.0/24       4777 2516 7922 33491   
  50.224.140.0/23      4777 2516 7922 33491   
  50.224.194.0/24      4777 2516 7922 33491   
  50.225.88.0/24       4777 2516 7922 33491   
  50.227.239.0/24      4777 2516 7922 33491   
  50.228.97.0/24       4777 2516 7922 33491   
  50.229.76.0/22       4777 2516 7922 33491   
  50.230.91.0/24       4777 2516 7922 33491   
  50.230.112.0/24      4777 2516 7922 33491   
  50.231.36.0/24       4777 2516 7922 33491   
  50.231.52.0/24       4777 2516 7922 33491   
  50.231.119.0/24      4777 2516 7922 33491   
  50.231.218.0/24      4777 2516 7922 33491   
  50.231.221.0/24      4777 2516 7922 33491   
  50.232.93.0/24       4777 2516 7922 33491   
  50.232.95.0/24       4777 2516 7922 33491   
  50.232.142.0/24      4777 2516 7922 33491   
  50.232.176.0/24      4777 2516 7922 33491   
  50.232.195.0/24      4777 2516 7922 33491   
  50.233.216.0/24      4777 2516 7922 33491   
  50.233.247.0/24      4777 2516 7922 33491   
  50.234.21.0/24       4777 2516 7922 33491   
  50.234.141.0/24      4777 2516 7922 33491   
  50.235.155.0/24      4777 2516 7922 33491   
  50.237.12.0/24       4777 2516 7922 33491   
  50.237.39.0/24       4777 2516 7922 33491   
  50.237.111.0/24      4777 2516 7922 33491   
  50.237.112.0/24      4777 2516 7922 33491   
  50.238.81.0/24       4777 2516 7922 33491   
  50.239.160.0/24      4777 2516 7922 33491   
  63.174.218.0/24      4777 2516 7922 33491   
  66.240.58.0/24       4777 2516 7922 33491   
  107.0.70.0/24        4777 2516 7922 33491   
  107.0.79.0/24        4777 2516 7922 33491   
  107.0.96.0/23        4777 2516 7922 33491   
  107.0.125.0/24       4777 2516 7922 33491   
  107.0.138.0/24       4777 2516 7922 33491   
  107.0.182.0/23       4777 2516 7922 33491   
  107.0.212.0/24       4777 2516 7922 33491   
  107.0.216.0/24       4777 2516 7922 33491   
  107.1.102.0/23       4777 2516 7922 33491   
  107.1.185.0/24       4777 2516 7922 33491   
  107.1.211.0/24       4777 2516 7922 33491   
  107.1.219.0/24       4777 2516 7922 33491   
  107.1.253.0/24       4777 2516 7922 33491   
  164.68.64.0/19       4777 2516 7922 33491 + Announce - aggregate of 164.68.64.0/20 (4777 2516 7922 33491) and 164.68.80.0/20 (4777 2516 7922 33491)
  164.68.64.0/20       4777 2516 7922 33491 - Withdrawn - aggregated with 164.68.80.0/20 (4777 2516 7922 33491)
  164.68.80.0/21       4777 2516 7922 33491 - Withdrawn - aggregated with 164.68.88.0/21 (4777 2516 7922 33491)
  164.68.88.0/22       4777 2516 7922 33491 - Withdrawn - aggregated with 164.68.92.0/22 (4777 2516 7922 33491)
  164.68.92.0/23       4777 2516 7922 33491 - Withdrawn - aggregated with 164.68.94.0/23 (4777 2516 7922 33491)
  164.68.94.0/23       4777 2516 7922 33491 - Withdrawn - aggregated with 164.68.92.0/23 (4777 2516 7922 33491)
  168.102.131.0/24     4777 2516 7922 33491   
  192.137.57.0/24      4777 2516 7922 33491   
  192.231.230.0/24     4777 2516 7922 33491   
  198.179.255.0/24     4777 2516 7922 33491   
  199.5.59.0/24        4777 2516 7922 33491   
  199.5.60.0/23        4777 2516 7922 33491 + Announce - aggregate of 199.5.60.0/24 (4777 2516 7922 33491) and 199.5.61.0/24 (4777 2516 7922 33491)
  199.5.60.0/24        4777 2516 7922 33491 - Withdrawn - aggregated with 199.5.61.0/24 (4777 2516 7922 33491)
  199.5.61.0/24        4777 2516 7922 33491 - Withdrawn - aggregated with 199.5.60.0/24 (4777 2516 7922 33491)
  199.5.63.0/24        4777 2516 7922 33491   
  199.68.13.0/24       4777 2516 7922 33491   
  204.68.241.0/24      4777 2516 7922 33491   
  204.152.156.0/24     4777 2516 7922 33491   
  204.194.2.0/24       4777 2516 7922 33491   
  205.167.202.0/23     4777 2516 7922 33491   
  209.23.249.0/24      4777 2516 7922 33491   
  209.51.81.0/24       4777 2516 7922 33491   
  209.153.0.0/18       4777 2516 7922 33491   

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS33491   83 More Specifics   91 Total Advertisements   COMCAST-33491 - Comcast Cable Communications, LLC, US
    24.104.47.0/24                24.104.0.0/17
    50.201.119.0/24               50.128.0.0/9
    50.201.191.0/24               50.128.0.0/9
    50.202.73.0/24                50.128.0.0/9
    50.203.174.0/24               50.128.0.0/9
    50.203.242.0/24               50.128.0.0/9
    50.204.23.0/24                50.128.0.0/9
    50.204.91.0/24                50.128.0.0/9
    50.204.189.0/24               50.128.0.0/9
    50.205.54.0/23                50.128.0.0/9
    50.205.166.0/24               50.128.0.0/9
    50.206.250.0/24               50.128.0.0/9
    50.207.233.0/24               50.128.0.0/9
    50.216.36.0/24                50.128.0.0/9
    50.216.227.0/24               50.128.0.0/9
    50.217.237.0/24               50.128.0.0/9
    50.218.78.0/24                50.128.0.0/9
    50.219.59.0/24                50.128.0.0/9
    50.219.60.0/24                50.128.0.0/9
    50.220.4.0/22                 50.128.0.0/9
    50.220.44.0/24                50.128.0.0/9
    50.220.116.0/24               50.128.0.0/9
    50.220.130.0/23               50.128.0.0/9
    50.220.188.0/24               50.128.0.0/9
    50.224.45.0/24                50.128.0.0/9
    50.224.140.0/23               50.128.0.0/9
    50.224.194.0/24               50.128.0.0/9
    50.225.88.0/24                50.128.0.0/9
    50.227.239.0/24               50.128.0.0/9
    50.228.97.0/24                50.128.0.0/9
    50.229.76.0/22                50.128.0.0/9
    50.230.91.0/24                50.128.0.0/9
    50.230.112.0/24               50.128.0.0/9
    50.231.36.0/24                50.128.0.0/9
    50.231.52.0/24                50.128.0.0/9
    50.231.119.0/24               50.128.0.0/9
    50.231.218.0/24               50.128.0.0/9
    50.231.221.0/24               50.128.0.0/9
    50.232.93.0/24                50.128.0.0/9
    50.232.95.0/24                50.128.0.0/9
    50.232.142.0/24               50.128.0.0/9
    50.232.176.0/24               50.128.0.0/9
    50.232.195.0/24               50.128.0.0/9
    50.233.216.0/24               50.128.0.0/9
    50.233.247.0/24               50.128.0.0/9
    50.234.21.0/24                50.128.0.0/9
    50.234.141.0/24               50.128.0.0/9
    50.235.155.0/24               50.128.0.0/9
    50.237.12.0/24                50.128.0.0/9
    50.237.39.0/24                50.128.0.0/9
    50.237.111.0/24               50.128.0.0/9
    50.237.112.0/24               50.128.0.0/9
    50.238.81.0/24                50.128.0.0/9
    50.239.160.0/24               50.128.0.0/9
    63.174.218.0/24               63.160.0.0/12
    66.240.58.0/24                66.240.0.0/18
    107.0.70.0/24                 107.0.0.0/14
    107.0.79.0/24                 107.0.0.0/14
    107.0.96.0/23                 107.0.0.0/14
    107.0.125.0/24                107.0.0.0/14
    107.0.138.0/24                107.0.0.0/14
    107.0.182.0/23                107.0.0.0/14
    107.0.212.0/24                107.0.0.0/14
    107.0.216.0/24                107.0.0.0/14
    107.1.102.0/23                107.0.0.0/14
    107.1.185.0/24                107.0.0.0/14
    107.1.211.0/24                107.0.0.0/14
    107.1.219.0/24                107.0.0.0/14
    107.1.253.0/24                107.0.0.0/14
    164.68.64.0/20                164.68.64.0/19
    164.68.80.0/21                164.68.64.0/19
    164.68.88.0/22                164.68.64.0/19
    164.68.92.0/23                164.68.64.0/19
    164.68.94.0/23                164.68.64.0/19
    199.5.59.0/24                 199.5.32.0/19
    199.5.60.0/24                 199.5.32.0/19
    199.5.61.0/24                 199.5.32.0/19
    199.5.63.0/24                 199.5.32.0/19
    199.68.13.0/24                199.68.12.0/23
    204.152.156.0/24              204.152.156.0/22
    204.194.2.0/24                204.194.0.0/22
    209.23.249.0/24               209.23.192.0/18
    209.51.81.0/24                209.51.64.0/19

Bogus ASes Announced by this AS

Bogus AS		Announcing-AS
AS10425	Announced by	AS33491	COMCAST-33491 - Comcast Cable Communications, LLC, US
AS27289	Announced by	AS33491	COMCAST-33491 - Comcast Cable Communications, LLC, US
AS30573	Announced by	AS33491	COMCAST-33491 - Comcast Cable Communications, LLC, US
AS46815	Announced by	AS33491	COMCAST-33491 - Comcast Cable Communications, LLC, US
AS54278	Announced by	AS33491	COMCAST-33491 - Comcast Cable Communications, LLC, US
AS62569	Announced by	AS33491	COMCAST-33491 - Comcast Cable Communications, LLC, US
AS396831	Announced by	AS33491	COMCAST-33491 - Comcast Cable Communications, LLC, US

Whois Entry

whois: 402332

IANA has recorded AS33491 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS33491\n