Report for 11509

Name

TIERZERO-AS11509 - Tierzero, 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 AS6447) 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.

11509 TIERZERO-AS11509, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461, US
    AS1299          TWELVE99 Arelion, fka Telia Carrier, SE

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2110  AS11509        ORIGIN  Originate:     118528 /15.15  Transit:          0 /0.00  TIERZERO-AS11509, 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       %
32710 AS11509       TIERZERO-AS11509, US                              14      0      0     14      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  64.239.128.0/18      57866 1299 11509       
  66.6.208.0/20        57866 1299 11509       
  72.18.0.0/19         57866 1299 11509       
  162.142.73.0/24      57866 1299 11509       
  208.179.0.0/16       57866 1299 11509       
  216.31.128.0/18      6939 6461 11509        
  216.116.96.0/23      57866 1299 11509       
  216.116.99.0/24      57866 1299 11509       
  216.116.100.0/22     57866 1299 11509       
  216.116.104.0/21     57866 1299 11509       
  216.116.112.0/21     57866 1299 11509       
  216.116.120.0/22     57866 1299 11509       
  216.116.124.0/23     57866 1299 11509       
  216.116.126.0/24     57866 1299 11509       

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

AS11509   11 More Specifics   18 Total Advertisements   TIERZERO-AS11509, US
    64.239.128.0/19               64.239.128.0/18
    64.239.160.0/20               64.239.128.0/18
    64.239.176.0/21               64.239.128.0/18
    64.239.184.0/24               64.239.128.0/18
    64.239.185.0/24               64.239.128.0/18
    64.239.186.0/24               64.239.128.0/18
    64.239.187.0/24               64.239.128.0/18
    64.239.188.0/24               64.239.128.0/18
    64.239.189.0/24               64.239.128.0/18
    64.239.190.0/23               64.239.128.0/18
    216.31.148.0/24               216.31.128.0/18

Whois Entry

whois: 402603

IANA has recorded AS11509 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS11509\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:       11509
             ASName:         TIERZERO-AS11509
             ASHandle:       AS11509
             RegDate:        1998-09-15
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/11509
             
             
             OrgName:        Tierzero
             OrgId:          TIERZ
             Address:        77 N Mentor Ave
             City:           Pasadena
             StateProv:      CA
             PostalCode:     91106
             Country:        US
             RegDate:        2004-05-21
             Updated:        2024-11-25
             Ref:            https://rdap.arin.net/registry/entity/TIERZ
             
             
             OrgTechHandle: TECHT-ARIN
             OrgTechName:   TECH-TIERZERO
             OrgTechPhone:  +1-213-784-1397 
             OrgTechEmail:  ipnetworkops@tierzero.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/TECHT-ARIN
             
             OrgAbuseHandle: ABUSE3154-ARIN
             OrgAbuseName:   Abuse Department
             OrgAbusePhone:  +1-213-784-1400 
             OrgAbuseEmail:  abuse@tierzero.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE3154-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.
             #