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	Prefix	Description
	103.249.71.0/24	-
	103.77.224.0/24	Mathew Heard/Trading as X4B
	103.249.70.0/24	X4B Anycast (Premium)

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS40676	Psychz Networks	✔	✘
	AS20473	The Constant Company, LLC	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS40676	Psychz Networks	✔	✘
	AS20473	The Constant Company, LLC	✔	✘
	AS52025	ParadoxNetworks Limited	✔	✘

aut-num:        AS136165
as-name:        X4B-AS-AP
descr:          X4B DDoS Protected Announcements
country:        AU
org:            ORG-XA1-AP
admin-c:        XA71-AP
tech-c:         XA71-AP
abuse-c:        AX110-AP
mnt-lower:      MAINT-X4B-AU
mnt-routes:     MAINT-X4B-AU
mnt-by:         APNIC-HM
mnt-irt:        IRT-X4B-AU
last-modified:  2020-06-22T04:59:50Z
source:         APNIC


organisation:   ORG-XA1-AP
org-name:       X4B
org-type:       LIR
country:        AU
address:        3 sheffie court
phone:          +61437635615
fax-no:         +61437635615
# Email removed, Log into bgp.tools to see whois emails
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:11Z
source:         APNIC

Last Update: 2025-12-26T03:22:28Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-twig	2235
RADB	as-ctbc-customers192	50
RADB	as20473:as-vultr	1653
RADB	as-40676	4129
RADB	as53667:as-customers	669