Report for 21858

Name

ASCENT-DATA-LLC - Ascent Data, 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.

21858 ASCENT-DATA-LLC - Ascent Data, LLC, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS11924         MONTANA-OPTICOM - Montana Opticom, LLC, US
    AS46887         CROWNCASTLE-AS46887 - Crown Castle Fiber LLC, US
    AS6461          ZAYO-6461 - Zayo Bandwidth, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
18550 AS21858        ORIGIN  Originate:       3584 /20.19  Transit:          0 /0.00  ASCENT-DATA-LLC - Ascent Data, 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       %
12407 AS21858       ASCENT-DATA-LLC - Ascent Data, LLC, US             6      3      0      3      3  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  208.70.64.0/21       4608 7575 11924 21858   
  208.70.64.0/23       4608 7575 11924 21858 - Withdrawn - matching aggregate 208.70.64.0/21 4608 7575 11924 21858
  208.70.64.0/24       4608 7575 11924 21858 - Withdrawn - matching aggregate 208.70.64.0/21 4608 7575 11924 21858
  208.70.66.0/24       4777 2497 6461 21858   
  208.70.68.0/24       4777 2497 6461 21858   
  208.70.71.0/24       4608 7575 11924 21858 - Withdrawn - matching aggregate 208.70.64.0/21 4608 7575 11924 21858

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

AS21858   5 More Specifics   6 Total Advertisements   ASCENT-DATA-LLC - Ascent Data, LLC, US
    208.70.64.0/23                208.70.64.0/21
    208.70.64.0/24                208.70.64.0/21
    208.70.66.0/24                208.70.64.0/21
    208.70.68.0/24                208.70.64.0/21
    208.70.71.0/24                208.70.64.0/21

Whois Entry

whois: 402603

IANA has recorded AS21858 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21858\n