Report for 3456

Name

TWC-3456-IT - 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.

3456 TWC-3456-IT - Charter Communications Inc, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS7843          TWC-7843-BB - Charter Communications Inc, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1662  AS3456         ORIGIN  Originate:     142848 /14.88  Transit:          0 /0.00  TWC-3456-IT - 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       %
20189 AS3456        TWC-3456-IT - Charter Communications Inc, US       9      1      0      8      1  11.11%


  Prefix               AS Path                              Aggregation Suggestion
  67.48.224.0/19       4777 6939 7843 3456    
  142.136.0.0/16       4777 2516 7843 3456    
  165.237.0.0/16       4777 2516 7843 3456    
  165.237.14.0/24      4777 6939 7843 3456    
  165.237.15.0/24      4777 2516 7843 3456  - Withdrawn - matching aggregate 165.237.0.0/16 4777 2516 7843 3456
  192.219.231.0/24     4777 2516 7843 3456    
  204.29.131.0/24      4777 2516 7843 3456    
  204.235.112.0/21     4777 2516 7843 3456    
  204.235.120.0/23     4777 2516 7843 3456    

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

AS3456   4 More Specifics   9 Total Advertisements   TWC-3456-IT - Charter Communications Inc, US
    67.48.224.0/19                67.48.0.0/15
    165.237.14.0/24               165.237.0.0/16
    165.237.15.0/24               165.237.0.0/16
    192.219.231.0/24              192.219.224.0/21

Whois Entry

whois: 402599

IANA has recorded AS3456 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS3456\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:       3456
             ASName:         TWC-3456-IT
             ASHandle:       AS3456
             RegDate:        1994-02-25
             Updated:        2018-11-27
             Ref:            https://rdap.arin.net/registry/autnum/3456
             
             
             
             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.
             #