View

If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	204.187.152.0/24	Postmedia Network Inc
	204.187.153.0/24	Postmedia Network Inc

---

Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation Policy adoring_black

Chart Display Options

Display links using non straight lines

Prefixes in selected policy

Load all prefixes in policy

---

How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS19122	eStruxture Data Centers Inc.	✔	✘

---

Peers

	ASN	Description	IPv4	IPv6
	AS19122	eStruxture Data Centers Inc.	✔	✘

ASHandle:       AS18588
OrgID:          POSTM2
ASName:         POSTM
ASNumber:       18588
RegDate:        2005-05-26
Updated:        2012-02-24
Source:         ARIN



OrgID:          POSTM2
OrgName:        Postmedia Network Inc
CanAllocate:    
Street:         6th Floor - 300 Carlton Street
City:           Winnipeg
State/Prov:     MB
Country:        CA
PostalCode:     R3B 2K6
RegDate:        2010-08-26
Updated:        2023-11-30
ReferralServer: rwhois://rwhois.postmedia.com:4321
OrgAdminHandle: SMITH278-ARIN
OrgTechHandle:  NETWO10001-ARIN
OrgTechHandle:  SMITH278-ARIN
OrgAbuseHandle: SMITH278-ARIN
OrgNOCHandle:   NETWO10001-ARIN
OrgNOCHandle:   SMITH278-ARIN
OrgRoutingHandle:   NETWO10001-ARIN
OrgDNSHandle:   NETWO10001-ARIN
Source:         ARIN





OrgAdminHandle:       SMITH278-ARIN
OrgAdminName:         DOUG SMITH
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        NETWO10001-ARIN
OrgTechName:           Network Admin
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        SMITH278-ARIN
OrgTechName:          DOUG SMITH
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       SMITH278-ARIN
OrgAbuseName:         DOUG SMITH
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         NETWO10001-ARIN
OrgNOCName:            Network Admin
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         SMITH278-ARIN
OrgNOCName:           DOUG SMITH
# Email removed, Log into bgp.tools to see whois emails


OrgRoutingHandle:     NETWO10001-ARIN
OrgRoutingName:        Network Admin
# Email removed, Log into bgp.tools to see whois emails


OrgDNSHandle:         NETWO10001-ARIN
OrgDNSName:            Network Admin
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-03-13T03:24:58Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RADB	as684:as-customers	46
LEVEL3	as-level3-origins-na	0
RIPE	as-gttcust	89468
ARIN	as1239:as-customers	4238
RADB	as-allstream-clients	393
ARIN	as-estruxture-customers	37
RIPE	as-gttcust6	88910