Report for 29891

Name

NCCWO-ASN1-VZBLVL3CMCST - National 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.

29891 NCCWO-ASN1-VZBLVL3CMCST - National Cable Communications LLC, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS701           UUNET - Verizon Business, US
    AS33491         COMCAST-33491 - Comcast Cable Communications, LLC, US
    AS33659         CMCS - Comcast Cable Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
35877 AS29891        ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  NCCWO-ASN1-VZBLVL3CMCST - National 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       %
39032 AS29891       NCCWO-ASN1-VZBLVL3CMCST - National Cable Comm      4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  50.227.87.0/24       4777 2516 7922 33659 29891   
  50.236.110.0/24      4777 2516 7922 33491 29891   
  63.97.151.0/24       4777 2497 701 29891    
  216.143.178.0/24     4777 2497 701 29891    

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

AS29891   4 More Specifics   4 Total Advertisements   NCCWO-ASN1-VZBLVL3CMCST - National Cable Communications LLC, US
    50.227.87.0/24                50.128.0.0/9
    50.236.110.0/24               50.128.0.0/9
    63.97.151.0/24                63.64.0.0/10
    216.143.178.0/24              216.140.0.0/14

Whois Entry

whois: 402332

IANA has recorded AS29891 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS29891\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:       29891
             ASName:         NCCWO-ASN1-VZBLVL3CMCST
             ASHandle:       AS29891
             RegDate:        2003-05-29
             Updated:        2013-10-23
             Ref:            https://rdap.arin.net/registry/autnum/29891
             
             
             OrgName:        National Cable Communications LLC
             OrgId:          NCCL-4
             Address:        300 Executive Drive
             Address:        Suite 050
             City:           West Orange
             StateProv:      NJ
             PostalCode:     07052
             Country:        US
             RegDate:        2003-05-27
             Updated:        2012-02-23
             Comment:        www.nccmedia.com
             Ref:            https://rdap.arin.net/registry/entity/NCCL-4
             
             
             OrgTechHandle: SWE6-ARIN
             OrgTechName:   Weingarten, Seth 
             OrgTechPhone:  +1-973-780-1700 
             OrgTechEmail:  seth_weingarten@spotcable.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/SWE6-ARIN
             
             OrgAbuseHandle: NETWO4984-ARIN
             OrgAbuseName:   Network Technology
             OrgAbusePhone:  +1-973-789-9889 
             OrgAbuseEmail:  _networksupport@spotcable.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO4984-ARIN
             
             OrgNOCHandle: NETWO4984-ARIN
             OrgNOCName:   Network Technology
             OrgNOCPhone:  +1-973-789-9889 
             OrgNOCEmail:  _networksupport@spotcable.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO4984-ARIN
             
             RTechHandle: SWE6-ARIN
             RTechName:   Weingarten, Seth 
             RTechPhone:  +1-973-780-1700 
             RTechEmail:  seth_weingarten@spotcable.com
             RTechRef:    https://rdap.arin.net/registry/entity/SWE6-ARIN
             
             RNOCHandle: NETWO4984-ARIN
             RNOCName:   Network Technology
             RNOCPhone:  +1-973-789-9889 
             RNOCEmail:  _networksupport@spotcable.com
             RNOCRef:    https://rdap.arin.net/registry/entity/NETWO4984-ARIN
             
             RAbuseHandle: SWE6-ARIN
             RAbuseName:   Weingarten, Seth 
             RAbusePhone:  +1-973-780-1700 
             RAbuseEmail:  seth_weingarten@spotcable.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/SWE6-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.
             #