Report for 18733

Name

ZENIMAXMEDIA - ZeniMax Media Incorporated, 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.

18733 ZENIMAXMEDIA, US

  Adjacency:     4  Upstream:     4  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461, US
    AS7018          ATT-INTERNET4, US
    AS3356          LEVEL3, US
    AS33657         CMCS, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
30503 AS18733        ORIGIN  Originate:       1536 /21.42  Transit:          0 /0.00  ZENIMAXMEDIA, 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       %
21389 AS18733       ZENIMAXMEDIA, US                                   6      2      1      5      1  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  198.20.216.0/23      7018 3356 18733      + Announce - aggregate of 198.20.216.0/24 (7018 3356 18733) and 198.20.217.0/24 (7018 3356 18733)
  198.20.216.0/24      7018 3356 18733      - Withdrawn - aggregated with 198.20.217.0/24 (7018 3356 18733)
  198.20.217.0/24      7018 3356 18733      - Withdrawn - aggregated with 198.20.216.0/24 (7018 3356 18733)
  198.20.218.0/24      7018 3356 18733        
  198.20.220.0/24      6939 7922 33657 18733   
  198.20.221.0/24      7018 18733             
  198.20.222.0/24      2152 7922 33657 18733   

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

AS18733   6 More Specifics   6 Total Advertisements   ZENIMAXMEDIA, US
    198.20.216.0/24               198.20.216.0/21
    198.20.217.0/24               198.20.216.0/21
    198.20.218.0/24               198.20.216.0/21
    198.20.220.0/24               198.20.216.0/21
    198.20.221.0/24               198.20.216.0/21
    198.20.222.0/24               198.20.216.0/21

Whois Entry

whois: 402549

IANA has recorded AS18733 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS18733\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:       18733
             ASName:         ZENIMAXMEDIA
             ASHandle:       AS18733
             RegDate:        2014-11-18
             Updated:        2014-11-18
             Ref:            https://rdap.arin.net/registry/autnum/18733
             
             
             OrgName:        ZeniMax Media Incorporated
             OrgId:          ZM-16
             Address:        1370 Piccard Drive
             City:           Rockville
             StateProv:      MD
             PostalCode:     20850
             Country:        US
             RegDate:        2014-11-06
             Updated:        2022-06-06
             Ref:            https://rdap.arin.net/registry/entity/ZM-16
             
             
             OrgTechHandle: ZINS-ARIN
             OrgTechName:   ZMI IT Networking Services
             OrgTechPhone:  +1-301-948-2200 
             OrgTechEmail:  _zmi_it_alerts_networkingservices@zenimax.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ZINS-ARIN
             
             OrgAbuseHandle: ZINS-ARIN
             OrgAbuseName:   ZMI IT Networking Services
             OrgAbusePhone:  +1-301-948-2200 
             OrgAbuseEmail:  _zmi_it_alerts_networkingservices@zenimax.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ZINS-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.
             #