Report for 25878

Name

QNST-DC01 - Quinstreet, 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.

25878 QNST-DC01 - Quinstreet, Inc., US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
22062 AS25878        ORIGIN  Originate:       2560 /20.68  Transit:          0 /0.00  QNST-DC01 - Quinstreet, 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       %
36896 AS25878       QNST-DC01 - Quinstreet, Inc., US                   7      0      0      7      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  64.84.40.0/23        4777 2497 3356 25878   
  67.106.145.0/24      4777 2497 3356 25878   
  70.42.22.0/23        4777 2497 3356 25878   
  173.226.108.0/24     4777 2497 3356 25878   
  216.211.163.0/24     4777 2497 3356 25878   
  216.211.170.0/23     4777 2497 3356 25878   
  216.211.175.0/24     4777 2497 7018 25878   

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

AS25878   7 More Specifics   7 Total Advertisements   QNST-DC01 - Quinstreet, Inc., US
    64.84.40.0/23                 64.84.0.0/18
    67.106.145.0/24               67.104.0.0/13
    70.42.22.0/23                 70.42.0.0/18
    173.226.108.0/24              173.226.0.0/15
    216.211.163.0/24              216.211.160.0/20
    216.211.170.0/23              216.211.160.0/20
    216.211.175.0/24              216.211.160.0/20

Whois Entry

whois: 402332

IANA has recorded AS25878 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS25878\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:       25878
             ASName:         QNST-DC01
             ASHandle:       AS25878
             RegDate:        2007-10-22
             Updated:        2012-02-24
             Comment:        http://www.quinstreet.com
             Ref:            https://rdap.arin.net/registry/autnum/25878
             
             
             OrgName:        Quinstreet, Inc.
             OrgId:          QUINS-2
             Address:        302 E. Carson Ave
             City:           Las Vegas
             StateProv:      NV
             PostalCode:     89101
             Country:        US
             RegDate:        2007-08-21
             Updated:        2020-05-19
             Ref:            https://rdap.arin.net/registry/entity/QUINS-2
             
             
             OrgTechHandle: NET4-ARIN
             OrgTechName:   Network Engineering Team
             OrgTechPhone:  +1-650-578-6864 
             OrgTechEmail:  neteng@quinstreet.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NET4-ARIN
             
             OrgAbuseHandle: NET4-ARIN
             OrgAbuseName:   Network Engineering Team
             OrgAbusePhone:  +1-650-578-6864 
             OrgAbuseEmail:  neteng@quinstreet.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NET4-ARIN
             
             RAbuseHandle: NET4-ARIN
             RAbuseName:   Network Engineering Team
             RAbusePhone:  +1-650-578-6864 
             RAbuseEmail:  neteng@quinstreet.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/NET4-ARIN
             
             RTechHandle: HBL8-ARIN
             RTechName:   Blandford, Hemi 
             RTechPhone:  +1-650-578-6864 
             RTechEmail:  hblandford@quinstreet.com
             RTechRef:    https://rdap.arin.net/registry/entity/HBL8-ARIN
             
             RNOCHandle: NET4-ARIN
             RNOCName:   Network Engineering Team
             RNOCPhone:  +1-650-578-6864 
             RNOCEmail:  neteng@quinstreet.com
             RNOCRef:    https://rdap.arin.net/registry/entity/NET4-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.
             #