Report for 53444

Name

ZSCALER-SJC - ZSCALER, 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.

53444 ZSCALER-SJC - ZSCALER, INC., US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
50885 AS53444        ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  ZSCALER-SJC - ZSCALER, 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       %
48011 AS53444       ZSCALER-SJC - ZSCALER, INC., US                    2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  8.25.203.0/24        4777 2497 6461 53444   
  199.168.148.0/24     4777 2497 6461 53444   

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

AS53444   2 More Specifics   2 Total Advertisements   ZSCALER-SJC - ZSCALER, INC., US
    8.25.203.0/24                 8.16.0.0/12
    199.168.148.0/24              199.168.148.0/22

Whois Entry

whois: 402603

IANA has recorded AS53444 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS53444\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:       53444
             ASName:         ZSCALER-SJC
             ASHandle:       AS53444
             RegDate:        2012-08-17
             Updated:        2013-04-23
             Ref:            https://rdap.arin.net/registry/autnum/53444
             
             
             
             OrgName:        ZSCALER, INC.
             OrgId:          ZSCAL
             Address:        120 Holger Way
             City:           San Jose
             StateProv:      CA
             PostalCode:     95134
             Country:        US
             RegDate:        2011-03-18
             Updated:        2025-11-06
             Comment:        Zscaler customer traffic originates from colocation facilities around the world. You should *NOT* use the address or contact information here for the purposes of geolocation. Additionally, because traffic egressing our network may belong to any one of our customers, you should not assume that this traffic belongs to us.
             Comment:        
             Comment:        For network or security incidents, please reach out to our abuse POC, which is actually monitored and actioned.
             Ref:            https://rdap.arin.net/registry/entity/ZSCAL
             
             
             OrgNOCHandle: POCNO1-ARIN
             OrgNOCName:   poc-noc
             OrgNOCPhone:  +1-408-701-0534 
             OrgNOCEmail:  poc-noc@zscaler.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/POCNO1-ARIN
             
             OrgAbuseHandle: POCAB2-ARIN
             OrgAbuseName:   poc-abuse
             OrgAbusePhone:  +1-408-701-0534 
             OrgAbuseEmail:  poc-abuse@zscaler.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/POCAB2-ARIN
             
             OrgTechHandle: POCTE3-ARIN
             OrgTechName:   poc-tech
             OrgTechPhone:  +1-408-701-0534 
             OrgTechEmail:  poc-tech@zscaler.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/POCTE3-ARIN
             
             OrgTechHandle: MMT31-ARIN
             OrgTechName:   Teng, Michael Michael
             OrgTechPhone:  +1-650-937-9195 
             OrgTechEmail:  mteng@zscaler.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MMT31-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.
             #