Report for 11283

Name

COSTCO - Costco, 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.

11283 COSTCO - Costco, Inc., US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
9447  AS11283        ORIGIN  Originate:      11520 /18.51  Transit:          0 /0.00  COSTCO - Costco, 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       %
 2120 AS11283       COSTCO - Costco, Inc., US                         44     37     10     17     27  61.36%


  Prefix               AS Path                              Aggregation Suggestion
  170.167.0.0/21       4777 2516 3356 11283 + Announce - aggregate of 170.167.0.0/22 (4777 2516 3356 11283) and 170.167.4.0/22 (4777 2516 3356 11283)
  170.167.0.0/24       4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.1.0/24 (4777 2516 3356 11283)
  170.167.1.0/24       4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.0.0/24 (4777 2516 3356 11283)
  170.167.2.0/24       4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.3.0/24 (4777 2516 3356 11283)
  170.167.3.0/24       4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.2.0/24 (4777 2516 3356 11283)
  170.167.4.0/24       4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.5.0/24 (4777 2516 3356 11283)
  170.167.5.0/24       4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.4.0/24 (4777 2516 3356 11283)
  170.167.6.0/24       4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.7.0/24 (4777 2516 3356 11283)
  170.167.7.0/24       4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.6.0/24 (4777 2516 3356 11283)
  170.167.8.0/24       4777 2516 3356 11283   
  170.167.10.0/23      4777 2516 3356 11283 + Announce - aggregate of 170.167.10.0/24 (4777 2516 3356 11283) and 170.167.11.0/24 (4777 2516 3356 11283)
  170.167.10.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.11.0/24 (4777 2516 3356 11283)
  170.167.11.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.10.0/24 (4777 2516 3356 11283)
  170.167.48.0/21      4777 2516 3356 11283 + Announce - aggregate of 170.167.48.0/22 (4777 2516 3356 11283) and 170.167.52.0/22 (4777 2516 3356 11283)
  170.167.48.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.49.0/24 (4777 2516 3356 11283)
  170.167.49.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.48.0/24 (4777 2516 3356 11283)
  170.167.50.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.51.0/24 (4777 2516 3356 11283)
  170.167.51.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.50.0/24 (4777 2516 3356 11283)
  170.167.52.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.53.0/24 (4777 2516 3356 11283)
  170.167.53.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.52.0/24 (4777 2516 3356 11283)
  170.167.54.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.55.0/24 (4777 2516 3356 11283)
  170.167.55.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.54.0/24 (4777 2516 3356 11283)
  170.167.56.0/23      4777 2516 3356 11283 + Announce - aggregate of 170.167.56.0/24 (4777 2516 3356 11283) and 170.167.57.0/24 (4777 2516 3356 11283)
  170.167.56.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.57.0/24 (4777 2516 3356 11283)
  170.167.57.0/24      4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.56.0/24 (4777 2516 3356 11283)
  170.167.63.0/24      4777 2497 6461 11283   
  170.167.100.0/22     4777 2516 3356 11283 + Announce - aggregate of 170.167.100.0/23 (4777 2516 3356 11283) and 170.167.102.0/23 (4777 2516 3356 11283)
  170.167.100.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.101.0/24 (4777 2516 3356 11283)
  170.167.101.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.100.0/24 (4777 2516 3356 11283)
  170.167.102.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.103.0/24 (4777 2516 3356 11283)
  170.167.103.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.102.0/24 (4777 2516 3356 11283)
  170.167.104.0/22     4777 2516 3356 11283 + Announce - aggregate of 170.167.104.0/23 (4777 2516 3356 11283) and 170.167.106.0/23 (4777 2516 3356 11283)
  170.167.104.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.105.0/24 (4777 2516 3356 11283)
  170.167.105.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.104.0/24 (4777 2516 3356 11283)
  170.167.106.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.107.0/24 (4777 2516 3356 11283)
  170.167.107.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.106.0/24 (4777 2516 3356 11283)
  170.167.108.0/24     4777 2516 3356 11283   
  170.167.110.0/23     4777 2516 3356 11283 + Announce - aggregate of 170.167.110.0/24 (4777 2516 3356 11283) and 170.167.111.0/24 (4777 2516 3356 11283)
  170.167.110.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.111.0/24 (4777 2516 3356 11283)
  170.167.111.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.110.0/24 (4777 2516 3356 11283)
  170.167.117.0/24     4777 2497 6461 11283   
  170.167.118.0/24     4777 2516 3356 11283   
  170.167.192.0/22     4777 2516 3356 11283 + Announce - aggregate of 170.167.192.0/23 (4777 2516 3356 11283) and 170.167.194.0/23 (4777 2516 3356 11283)
  170.167.192.0/23     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.194.0/23 (4777 2516 3356 11283)
  170.167.194.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.195.0/24 (4777 2516 3356 11283)
  170.167.195.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.194.0/24 (4777 2516 3356 11283)
  170.167.196.0/23     4777 2516 3356 11283 + Announce - aggregate of 170.167.196.0/24 (4777 2516 3356 11283) and 170.167.197.0/24 (4777 2516 3356 11283)
  170.167.196.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.197.0/24 (4777 2516 3356 11283)
  170.167.197.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.196.0/24 (4777 2516 3356 11283)
  170.167.201.0/24     4777 2516 3356 11283   
  170.167.240.0/24     4777 2516 3356 11283   
  170.167.248.0/23     4777 2516 3356 11283 + Announce - aggregate of 170.167.248.0/24 (4777 2516 3356 11283) and 170.167.249.0/24 (4777 2516 3356 11283)
  170.167.248.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.249.0/24 (4777 2516 3356 11283)
  170.167.249.0/24     4777 2516 3356 11283 - Withdrawn - aggregated with 170.167.248.0/24 (4777 2516 3356 11283)

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

AS11283   44 More Specifics   44 Total Advertisements   COSTCO - Costco, Inc., US
    170.167.0.0/24                170.167.0.0/16
    170.167.1.0/24                170.167.0.0/16
    170.167.2.0/24                170.167.0.0/16
    170.167.3.0/24                170.167.0.0/16
    170.167.4.0/24                170.167.0.0/16
    170.167.5.0/24                170.167.0.0/16
    170.167.6.0/24                170.167.0.0/16
    170.167.7.0/24                170.167.0.0/16
    170.167.8.0/24                170.167.0.0/16
    170.167.10.0/24               170.167.0.0/16
    170.167.11.0/24               170.167.0.0/16
    170.167.48.0/24               170.167.0.0/16
    170.167.49.0/24               170.167.0.0/16
    170.167.50.0/24               170.167.0.0/16
    170.167.51.0/24               170.167.0.0/16
    170.167.52.0/24               170.167.0.0/16
    170.167.53.0/24               170.167.0.0/16
    170.167.54.0/24               170.167.0.0/16
    170.167.55.0/24               170.167.0.0/16
    170.167.56.0/24               170.167.0.0/16
    170.167.57.0/24               170.167.0.0/16
    170.167.63.0/24               170.167.0.0/16
    170.167.100.0/24              170.167.0.0/16
    170.167.101.0/24              170.167.0.0/16
    170.167.102.0/24              170.167.0.0/16
    170.167.103.0/24              170.167.0.0/16
    170.167.104.0/24              170.167.0.0/16
    170.167.105.0/24              170.167.0.0/16
    170.167.106.0/24              170.167.0.0/16
    170.167.107.0/24              170.167.0.0/16
    170.167.108.0/24              170.167.0.0/16
    170.167.110.0/24              170.167.0.0/16
    170.167.111.0/24              170.167.0.0/16
    170.167.117.0/24              170.167.0.0/16
    170.167.118.0/24              170.167.0.0/16
    170.167.192.0/23              170.167.0.0/16
    170.167.194.0/24              170.167.0.0/16
    170.167.195.0/24              170.167.0.0/16
    170.167.196.0/24              170.167.0.0/16
    170.167.197.0/24              170.167.0.0/16
    170.167.201.0/24              170.167.0.0/16
    170.167.240.0/24              170.167.0.0/16
    170.167.248.0/24              170.167.0.0/16
    170.167.249.0/24              170.167.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS11283 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS11283\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:       11283
             ASName:         COSTCO
             ASHandle:       AS11283
             RegDate:        1998-06-11
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/11283
             
             
             OrgName:        Costco Wholesale Corporation
             OrgId:          COSTCO-3
             Address:        999 Lake Dr.
             City:           Issaquah
             StateProv:      WA
             PostalCode:     98027
             Country:        US
             RegDate:        1998-06-11
             Updated:        2026-04-01
             Ref:            https://rdap.arin.net/registry/entity/COSTCO-3
             
             
             OrgTechHandle: ZC167-ARIN
             OrgTechName:   COSTCO INC
             OrgTechPhone:  +1-425-313-8100 
             OrgTechEmail:  admincontact@costco.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ZC167-ARIN
             
             OrgAbuseHandle: ZC167-ARIN
             OrgAbuseName:   COSTCO INC
             OrgAbusePhone:  +1-425-313-8100 
             OrgAbuseEmail:  admincontact@costco.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ZC167-ARIN
             
             RTechHandle: ZC167-ARIN
             RTechName:   COSTCO INC
             RTechPhone:  +1-425-313-8100 
             RTechEmail:  admincontact@costco.com
             RTechRef:    https://rdap.arin.net/registry/entity/ZC167-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.
             #