Report for 11351

Name

TWC-11351-NORTHEAST - Charter Communications Inc, 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.

11351 TWC-11351-NORTHEAST - Charter Communications Inc, US

  Adjacency:    71  Upstream:     1  Downstream:    70
  Upstream Adjacent AS list
    AS7843          TWC-7843-BB - Charter Communications Inc, US
  Downstream Adjacent AS list
    AS20330         NYS-UNIFIED-COURTS - New York State Unified Court System, US
    AS11847         OTT - GoNetSpeed, US
    AS22455         ESL-FCU - ESL Federal Credit Union, US
    AS396271        S-J-ROLLINS-TECHNOLOGIES - S. J. Rollins Technologies, US
    AS394690        ESL-FARM-AS - ESL Federal Credit Union, US
    AS398086        SUNY-MORRISVILLE - SUNY Morrisville, US
    AS400000        PCB - PCB Piezotronics, Inc., US
    AS40737         EMFINC-ASN1 - EMF Inc., US
    AS40625         TWC-WESTELCOM-MULTIHOMED - Jefferson Community College, US
    AS46621         SCRIC - Broome - Tioga BOCES, US
    AS46356         SBUEDU - Saint Bonaventure University, US
    AS14458         WORLDKITCHEN-1 - World Kitchen, LLC, US
    AS19345         SIMONS-ROCK-EDU-ASN01 - Bard College at Simon's Rock, US
    AS2003          EPRI-PA - Electric Power Research Institute, US
    AS23525         CNC-CNB - Canandaigua National Corporation, US
    AS29968         ASN-NETSYNC - Dunkirk & Fredonia Telephone Company, US
    AS29701         CUTCO-NETWORK - Cutco Corporation, US
    AS33177         AS33177 - Kaleida Health, US
    AS33004         SUNY-ESC - SUNY Empire State University, US
    AS393838        LPH-LIBERTYPUMPS - Liberty Pumps, Inc., US
    AS3576          AS-HODGSON-RUSS-NET - Hodgson Russ LLP, US
    AS395908        --No Registry Entry--
    AS395015        SUNY-FREDONIA - SUNY College at Fredonia, US
    AS33759         REGENERON - Regeneron Pharmaceuticals Inc., US
    AS33239         CIS-MSISAC - Center for Internet Security, US
    AS25915         WSWHE-NET - WASHINGTON SARATOGA WARREN HAMILTON & ESSEX BOCES, US
    AS40069         AISNET - ASSURED INFORMATION SECURITY, INC., US
    AS402327        ANTERIS-SOLUTIONS-INC - Anteris, US
    AS46158         OCMBOCES - OCM BOCES, US
    AS53519         CMHC-ASN - Central Maine Medical Family, US
    AS46820         LRHNET1 - Littleton Regional Hospital, US
    AS12120         AAO-AIO - Amphenol Corp, US
    AS63243         SYNERGENT - Synergent, US
    AS62855         CMA-MISCNY - Currier, McCabe and Associates, Inc., US
    AS55032         JAXNET-BH-01 - The Jackson Laboratory, US
    AS53657         --No Registry Entry--
    AS10250         DATAFIVE - INet Solutions, US
    AS17382         --No Registry Entry--
    AS19368         THRIVE-SNS-COLO - Thrive Operations, LLC, US
    AS14437         FLEMING - C&S WHOLESALE GROCERS INC., US
    AS20337         SUNYPOLY-ASN - SUNY Institute of Technology, US
    AS13588         PAYCHEX - Paychex Inc., US
    AS11440         NETSVILLE - Netsville, Inc., US
    AS21806         NATIONAL-FUEL - National Fuel Gas Distribution Corporation, US
    AS22270         BANGOR-SAVINGS-BANK - Bangor Savings Bank, US
    AS20359         PREFERREDMUTUALINSURANCECOMPANY - Preferred Mutual Insurance Company, US
    AS22970         MAINETECHCOLLEGESYS - Maine Technical College System, US
    AS23086         POUNDBANG-HOSTING - Pound Bang Incorporated, US
    AS30668         MADISONCOUNTYNY-01 - Madison County New York, US
    AS30080         ARNOLD-MAGNETIC-TECHNOLOGIES-CORP-BGP - Arnold Magnetic Technologies Corporation, US
    AS26854         NYS - New York State, US
    AS32117         BERKSHIRE-HEALTH-SYSTEMS - Berkshire Health Systems, US
    AS397932        NYSA-ASN - New York State Assembly, US
    AS394212        WMC - Weeks Medical Center, US
    AS33611         NUVO2 - Nuvodia, LLC, US
    AS30703         SHSC-1-AS - State University of New York, Health Science Center at Syracuse, US
    AS400411        CHS - Sisters of Charity Hospital, US
    AS400931        ROCKOAK-ASN - Rock Oak, LLC, US
    AS39956         CCPASN - Community Care Physicians, P.C., US
    AS40944         MASSCOL - Mass College of Liberal Arts, US
    AS40229         MAINEHEALTH-MAINE-MEDICAL-CENTER - MaineHealth Maine Medical Center, US
    AS23224         ELH-AS01 - ELLIS MEDICINE, US
    AS54471         AVH - Androscoggin Valley Hospital, US
    AS53549         HUSSEY-SEATING - Hussey Seating Company, US
    AS53426         DNC - Delaware North Companies, US
    AS46391         AS46391 - Bassett Medical Center, US
    AS62630         AS62630 - Husson University, US
    AS7828          DRMSCPASN - Northland Communications, US
    AS46236         GUTHRIE-HEALTHCARE-SYSTEMS - Guthrie Healthcare System, US
    AS22390         XEROX-WB - XEROX CORPORATION, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
149   AS11351        ORG+TRN Originate:    4323840 /9.96   Transit:     407552 /13.36 TWC-11351-NORTHEAST - Charter Communications Inc, 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       %
20538 AS11351       TWC-11351-NORTHEAST - Charter Communications     126      2      1    125      1   0.79%


  Prefix               AS Path                              Aggregation Suggestion
  24.24.0.0/18         4777 2516 7843 11351   
  24.25.128.0/18       4777 2516 7843 11351   
  24.29.32.0/19        4777 2516 7843 11351   
  24.29.64.0/19        4777 2516 7843 11351   
  24.30.240.0/20       4777 2516 7843 11351   
  24.31.128.0/19       4777 2516 7843 11351   
  24.39.0.0/18         4777 2516 7843 11351   
  24.39.64.0/19        4777 2516 7843 11351   
  24.39.96.0/21        4777 2516 7843 11351   
  24.39.160.0/19       4777 2516 7843 11351   
  24.39.192.0/18       4777 2516 7843 11351   
  24.58.0.0/15         4777 2516 7843 11351   
  24.92.32.0/19        4777 2516 7843 11351   
  24.92.224.0/19       4777 2516 7843 11351   
  24.93.0.0/19         4777 2516 7843 11351   
  24.93.128.0/19       4777 2516 7843 11351   
  24.94.32.0/19        4777 2516 7843 11351   
  24.97.0.0/16         4777 2516 7843 11351   
  24.103.128.0/18      4777 2516 7843 11351   
  24.103.192.0/19      4777 2516 7843 11351   
  24.105.160.0/19      4777 2516 7843 11351   
  24.169.0.0/17        4777 2516 7843 11351   
  24.198.0.0/16        4777 2516 7843 11351   
  24.213.128.0/19      4777 2516 7843 11351   
  24.213.184.0/21      4777 2516 7843 11351   
  24.213.192.0/18      4777 2516 7843 11351   
  45.46.0.0/15         4777 6939 7843 11351   
  47.231.32.0/19       4777 6939 7843 11351   
  47.231.96.0/20       4777 6939 7843 11351   
  50.75.0.0/17         4777 6939 7843 11351   
  50.75.128.0/18       4777 6939 7843 11351   
  64.30.240.0/20       4777 6939 7843 11351   
  65.185.244.0/24      4777 2516 7843 11351   
  66.24.0.0/16         4777 2516 7843 11351   
  66.66.0.0/15         4777 2516 7843 11351   
  67.240.0.0/15        4777 2516 7843 11351   
  67.242.0.0/16        4777 2516 7843 11351   
  67.244.32.0/19       4777 2516 7843 11351   
  67.244.128.0/17      4777 2516 7843 11351   
  67.246.0.0/16        4777 2516 7843 11351   
  67.247.64.0/19       4777 2516 7843 11351   
  67.247.128.0/17      4777 2516 7843 11351   
  67.248.0.0/15        4777 2516 7843 11351   
  67.251.0.0/17        4777 2516 7843 11351   
  67.252.0.0/15        4777 2516 7843 11351   
  67.255.0.0/16        4777 2516 7843 11351   
  68.172.0.0/17        4777 2516 7843 11351   
  68.172.128.0/18      4777 2516 7843 11351   
  68.172.192.0/20      4777 2516 7843 11351   
  68.175.128.0/17      4777 2516 7843 11351   
  69.193.0.0/17        4777 2516 7843 11351   
  69.200.0.0/18        4777 2516 7843 11351   
  69.200.96.0/19       4777 2516 7843 11351   
  69.201.0.0/17        4777 2516 7843 11351   
  69.204.0.0/17        4777 6939 7843 11351   
  69.204.128.0/18      4777 2516 7843 11351   
  69.204.192.0/19      4777 2516 7843 11351   
  69.205.192.0/22      4777 2516 7843 11351   
  69.207.0.0/16        4777 2516 7843 11351   
  71.65.32.0/23        4777 2516 7843 11351   
  71.65.34.0/23        4777 6939 7843 11351   
  71.65.36.0/22        4777 6939 7843 11351   
  72.43.0.0/18         4777 2516 7843 11351   
  72.43.64.0/19        4777 2516 7843 11351   
  72.43.192.0/18       4777 2516 7843 11351   
  72.45.128.0/17       4777 2516 7843 11351   
  72.224.0.0/16        4777 2516 7843 11351   
  72.225.0.0/18        4777 2516 7843 11351   
  72.226.128.0/17      4777 2516 7843 11351   
  72.227.0.0/17        4777 2516 7843 11351   
  72.228.0.0/16        4777 2516 7843 11351   
  72.230.0.0/16        4777 2516 7843 11351   
  72.231.128.0/17      4777 2516 7843 11351   
  74.65.0.0/17         4777 2516 7843 11351   
  74.65.128.0/18       4777 2516 7843 11351   
  74.67.0.0/16         4777 2516 7843 11351   
  74.69.0.0/16         4777 2516 7843 11351   
  74.70.0.0/16         4777 2516 7843 11351   
  74.74.64.0/18        4777 2516 7843 11351   
  74.74.128.0/17       4777 2516 7843 11351   
  74.75.0.0/16         4777 2516 7843 11351   
  74.76.0.0/14         4777 2516 7843 11351   
  76.37.0.0/16         4777 2516 7843 11351   
  76.38.128.0/17       4777 2516 7843 11351   
  76.58.20.0/22        4777 2516 7843 11351 + Announce - aggregate of 76.58.20.0/23 (4777 2516 7843 11351) and 76.58.22.0/23 (4777 2516 7843 11351)
  76.58.20.0/23        4777 2516 7843 11351 - Withdrawn - aggregated with 76.58.22.0/23 (4777 2516 7843 11351)
  76.58.22.0/23        4777 2516 7843 11351 - Withdrawn - aggregated with 76.58.20.0/23 (4777 2516 7843 11351)
  76.178.192.0/18      4777 2516 7843 11351   
  76.179.0.0/16        4777 2516 7843 11351   
  76.180.0.0/16        4777 6939 7843 11351   
  98.0.0.0/17          4777 2516 7843 11351   
  98.1.0.0/16          4777 2516 7843 11351   
  98.2.0.0/15          4777 2516 7843 11351   
  98.4.0.0/15          4777 2516 7843 11351   
  98.10.0.0/15         4777 2516 7843 11351   
  98.13.0.0/17         4777 2516 7843 11351   
  104.228.0.0/15       4777 2516 7843 11351   
  108.176.64.0/18      4777 2516 7843 11351   
  108.176.192.0/18     4777 2516 7843 11351   
  136.223.36.0/24      4777 6939 7843 11351   
  137.124.10.0/24      4777 2516 7843 11351   
  142.105.128.0/17     4777 2516 7843 11351   
  150.154.0.0/16       4777 6939 7843 11351   
  150.221.0.0/18       4777 2516 7843 11351   
  150.224.246.0/23     4777 2516 7843 11351   
  154.16.42.0/24       4777 6939 7843 11351   
  168.148.96.0/19      4777 2516 7843 11351   
  172.100.0.0/15       4777 2516 7843 11351   
  184.74.0.0/17        4777 2516 7843 11351   
  184.153.128.0/17     4777 2516 7843 11351   
  192.31.156.0/24      4777 6939 7843 11351   
  192.67.10.0/24       4777 2516 7843 11351   
  192.149.230.0/24     4777 6939 7843 11351   
  192.188.5.0/24       4777 6939 7843 11351   
  198.179.96.0/19      4777 2516 7843 11351   
  198.255.128.0/17     4777 2516 7843 11351   
  199.29.192.0/24      4777 6939 7843 11351   
  199.120.152.0/24     4777 6939 7843 11351   
  204.210.64.0/19      4777 2516 7843 11351   
  207.251.224.0/21     4777 2516 7843 11351   
  207.251.232.0/22     4777 2516 7843 11351   
  207.251.236.0/23     4777 2516 7843 11351   
  208.105.96.0/19      4777 2516 7843 11351   
  208.105.128.0/17     4777 2516 7843 11351   
  208.125.32.0/19      4777 2516 7843 11351   
  208.125.64.0/18      4777 2516 7843 11351   
  208.125.128.0/17     4777 2516 7843 11351   

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

AS11351   109 More Specifics   126 Total Advertisements   TWC-11351-NORTHEAST - Charter Communications Inc, US
    24.24.0.0/18                  24.24.0.0/14
    24.25.128.0/18                24.24.0.0/14
    24.29.32.0/19                 24.28.0.0/15
    24.29.64.0/19                 24.28.0.0/15
    24.30.240.0/20                24.30.128.0/17
    24.31.128.0/19                24.31.128.0/17
    24.39.0.0/18                  24.39.0.0/16
    24.39.64.0/19                 24.39.0.0/16
    24.39.96.0/21                 24.39.0.0/16
    24.39.160.0/19                24.39.0.0/16
    24.39.192.0/18                24.39.0.0/16
    24.92.32.0/19                 24.92.0.0/17
    24.92.224.0/19                24.92.192.0/18
    24.93.0.0/19                  24.93.0.0/16
    24.93.128.0/19                24.93.0.0/16
    24.94.32.0/19                 24.94.0.0/15
    24.103.128.0/18               24.103.0.0/16
    24.103.192.0/19               24.103.0.0/16
    24.105.160.0/19               24.105.128.0/18
    24.169.0.0/17                 24.168.0.0/15
    24.213.128.0/19               24.213.128.0/17
    24.213.184.0/21               24.213.128.0/17
    24.213.192.0/18               24.213.128.0/17
    47.231.32.0/19                47.224.0.0/13
    47.231.96.0/20                47.224.0.0/13
    50.75.0.0/17                  50.74.0.0/15
    50.75.128.0/18                50.74.0.0/15
    65.185.244.0/24               65.184.0.0/13
    67.240.0.0/15                 67.240.0.0/12
    67.242.0.0/16                 67.240.0.0/12
    67.244.32.0/19                67.240.0.0/12
    67.244.128.0/17               67.240.0.0/12
    67.246.0.0/16                 67.240.0.0/12
    67.247.64.0/19                67.240.0.0/12
    67.247.128.0/17               67.240.0.0/12
    67.248.0.0/15                 67.240.0.0/12
    67.251.0.0/17                 67.240.0.0/12
    67.252.0.0/15                 67.240.0.0/12
    67.255.0.0/16                 67.240.0.0/12
    68.172.0.0/17                 68.172.0.0/14
    68.172.128.0/18               68.172.0.0/14
    68.172.192.0/20               68.172.0.0/14
    68.175.128.0/17               68.172.0.0/14
    69.193.0.0/17                 69.193.0.0/16
    69.200.0.0/18                 69.200.0.0/13
    69.200.96.0/19                69.200.0.0/13
    69.201.0.0/17                 69.200.0.0/13
    69.204.0.0/17                 69.200.0.0/13
    69.204.128.0/18               69.200.0.0/13
    69.204.192.0/19               69.200.0.0/13
    69.205.192.0/22               69.200.0.0/13
    69.207.0.0/16                 69.200.0.0/13
    71.65.32.0/23                 71.64.0.0/12
    71.65.34.0/23                 71.64.0.0/12
    71.65.36.0/22                 71.64.0.0/12
    72.43.0.0/18                  72.43.0.0/16
    72.43.64.0/19                 72.43.0.0/16
    72.43.192.0/18                72.43.0.0/16
    72.224.0.0/16                 72.224.0.0/13
    72.225.0.0/18                 72.224.0.0/13
    72.226.128.0/17               72.224.0.0/13
    72.227.0.0/17                 72.224.0.0/13
    72.228.0.0/16                 72.224.0.0/13
    72.230.0.0/16                 72.224.0.0/13
    72.231.128.0/17               72.224.0.0/13
    74.65.0.0/17                  74.64.0.0/12
    74.65.128.0/18                74.64.0.0/12
    74.67.0.0/16                  74.64.0.0/12
    74.69.0.0/16                  74.64.0.0/12
    74.70.0.0/16                  74.64.0.0/12
    74.74.64.0/18                 74.64.0.0/12
    74.74.128.0/17                74.64.0.0/12
    74.75.0.0/16                  74.64.0.0/12
    74.76.0.0/14                  74.64.0.0/12
    76.37.0.0/16                  76.32.0.0/11
    76.38.128.0/17                76.32.0.0/11
    76.58.20.0/23                 76.32.0.0/11
    76.58.22.0/23                 76.32.0.0/11
    76.178.192.0/18               76.176.0.0/13
    76.179.0.0/16                 76.176.0.0/13
    76.180.0.0/16                 76.176.0.0/13
    98.0.0.0/17                   98.0.0.0/12
    98.1.0.0/16                   98.0.0.0/12
    98.2.0.0/15                   98.0.0.0/12
    98.4.0.0/15                   98.0.0.0/12
    98.10.0.0/15                  98.0.0.0/12
    98.13.0.0/17                  98.0.0.0/12
    108.176.64.0/18               108.176.0.0/16
    108.176.192.0/18              108.176.0.0/16
    136.223.36.0/24               136.223.0.0/16
    137.124.10.0/24               137.124.0.0/16
    142.105.128.0/17              142.105.0.0/16
    150.221.0.0/18                150.221.0.0/16
    150.224.246.0/23              150.224.0.0/16
    154.16.42.0/24                154.16.0.0/16
    168.148.96.0/19               168.148.0.0/16
    184.74.0.0/17                 184.74.0.0/16
    184.153.128.0/17              184.152.0.0/15
    198.179.96.0/19               198.179.64.0/18
    199.29.192.0/24               199.29.0.0/16
    204.210.64.0/19               204.210.0.0/16
    207.251.224.0/21              207.251.224.0/20
    207.251.232.0/22              207.251.224.0/20
    207.251.236.0/23              207.251.224.0/20
    208.105.96.0/19               208.105.0.0/16
    208.105.128.0/17              208.105.0.0/16
    208.125.32.0/19               208.125.0.0/16
    208.125.64.0/18               208.125.0.0/16
    208.125.128.0/17              208.125.0.0/16

Bogus Prefixes Announced by this AS

Prefix	Origin AS	AS Description	Unallocated block
192.149.230.0/24	AS11351	TWC-11351-NORTHEAST - Charter Communications Inc, US	192.149.230.0 - 192.149.230.255

Bogus ASes Announced by this AS

Bogus AS		Announcing-AS
AS17382	Announced by	AS11351	TWC-11351-NORTHEAST - Charter Communications Inc, US
AS53657	Announced by	AS11351	TWC-11351-NORTHEAST - Charter Communications Inc, US
AS395908	Announced by	AS11351	TWC-11351-NORTHEAST - Charter Communications Inc, US

Whois Entry

whois: 402584

IANA has recorded AS11351 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS11351\n             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             ASNumber:       11351
             ASName:         TWC-11351-NORTHEAST
             ASHandle:       AS11351
             RegDate:        1998-07-14
             Updated:        2018-11-27
             Ref:            https://rdap.arin.net/registry/autnum/11351
             
             
             
             OrgName:        Charter Communications Inc
             OrgId:          CC-3517
             Address:        6175 S. Willow Dr
             City:           Greenwood Village
             StateProv:      CO
             PostalCode:     80111
             Country:        US
             RegDate:        2018-10-10
             Updated:        2022-09-14
             Comment:        Legacy Time Warner Cable IP Assets
             Ref:            https://rdap.arin.net/registry/entity/CC-3517
             
             
             OrgTechHandle: IPADD1-ARIN
             OrgTechName:   IPAddressing
             OrgTechPhone:  +1-866-248-7662 
             OrgTechEmail:  PublicIPAddressing@charter.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/IPADD1-ARIN
             
             OrgAbuseHandle: ABUSE19-ARIN
             OrgAbuseName:   Abuse
             OrgAbusePhone:  +1-877-777-2263 
             OrgAbuseEmail:  abuse@charter.net
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE19-ARIN
             
             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #