Report for 18588

Name

POSTM - Postmedia Network Inc, CA

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.

18588 POSTM - Postmedia Network Inc, CA

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS19122         ESTRUXTURE-ON-19122 - eStruxture Data Centers Inc., CA

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
48426 AS18588        ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  POSTM - Postmedia Network Inc, CA

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       %
35238 AS18588       POSTM - Postmedia Network Inc, CA                  2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  204.187.152.0/24     4777 2516 1299 19122 18588 18588   
  204.187.153.0/24     4777 2516 1299 19122 18588 18588 18588   

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

AS18588   2 More Specifics   2 Total Advertisements   POSTM - Postmedia Network Inc, CA
    204.187.152.0/24              204.187.152.0/23
    204.187.153.0/24              204.187.152.0/23

Whois Entry

whois: 402332

IANA has recorded AS18588 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS18588\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:       18588
             ASName:         POSTM
             ASHandle:       AS18588
             RegDate:        2005-05-26
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/18588
             
             
             OrgName:        Postmedia Network Inc
             OrgId:          POSTM2
             Address:        6th Floor - 300 Carlton Street
             City:           Winnipeg
             StateProv:      MB
             PostalCode:     R3B 2K6
             Country:        CA
             RegDate:        2010-08-26
             Updated:        2023-11-30
             Ref:            https://rdap.arin.net/registry/entity/POSTM2
             
             ReferralServer:  rwhois://rwhois.postmedia.com:4321
             
             OrgDNSHandle: NETWO10001-ARIN
             OrgDNSName:   Network Admin
             OrgDNSPhone:  +1-416-802-4302 
             OrgDNSEmail:  jsithiravelu@postmedia.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/NETWO10001-ARIN
             
             OrgAbuseHandle: SMITH278-ARIN
             OrgAbuseName:   SMITH, DOUG 
             OrgAbusePhone:  +1-416-903-0313 
             OrgAbuseEmail:  dosmith@postmedia.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/SMITH278-ARIN
             
             OrgNOCHandle: SMITH278-ARIN
             OrgNOCName:   SMITH, DOUG 
             OrgNOCPhone:  +1-416-903-0313 
             OrgNOCEmail:  dosmith@postmedia.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/SMITH278-ARIN
             
             OrgRoutingHandle: NETWO10001-ARIN
             OrgRoutingName:   Network Admin
             OrgRoutingPhone:  +1-416-802-4302 
             OrgRoutingEmail:  jsithiravelu@postmedia.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/NETWO10001-ARIN
             
             OrgTechHandle: NETWO10001-ARIN
             OrgTechName:   Network Admin
             OrgTechPhone:  +1-416-802-4302 
             OrgTechEmail:  jsithiravelu@postmedia.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO10001-ARIN
             
             OrgTechHandle: SMITH278-ARIN
             OrgTechName:   SMITH, DOUG 
             OrgTechPhone:  +1-416-903-0313 
             OrgTechEmail:  dosmith@postmedia.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/SMITH278-ARIN
             
             OrgNOCHandle: NETWO10001-ARIN
             OrgNOCName:   Network Admin
             OrgNOCPhone:  +1-416-802-4302 
             OrgNOCEmail:  jsithiravelu@postmedia.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO10001-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.
             #
             
             
             
             Found a referral to rwhois.postmedia.com:4321.