ASN AS58921 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS58921?

AS58921 is listed under Capricorn Society Limited.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS58921 Capricorn Society Limited

ASN Lookup Tool

Capricorn Society Limited capricorn.coop

AU 5 Routes

AS Data

AS58921

AS58921 – Capricorn Society Limited

AS Number	58921
AS Name	CSL-AS-AP
Organization	Capricorn Society Limited(org-csl1-ap)
Country	AU
Website	capricorn.coop
Number of IPv4 Routes	5
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	APNIC
Date Allocated	N/A

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Use ASN data for AS58921 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
43.225.179.0/24	AS58921	Capricorn Society Limited	Capricorn Society Limited For abuse please contact hostmaster@capricorn.coop	256
43.225.176.0/24	AS58921	Capricorn Society Limited	Capricorn Society Limited	256
103.248.5.0/24	AS58921	Capricorn Society Limited	Capricorn Society Limited For abuse please contact hostmaster@capricorn.coop	256
103.248.6.0/24	AS58921	Capricorn Society Limited	Capricorn Society Limited For abuse please contact hostmaster@capricorn.coop	256
103.248.7.0/24	AS58921	Capricorn Society Limited	Capricorn Society Limited For abuse please contact hostmaster@capricorn.coop	256

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS58368 - AS59391'

as-block:       AS58368 - AS59391
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2011-08-10T06:21:41Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS58921'

% Abuse contact for 'AS58921' is 'hostmaster@capricorn.coop'

aut-num:        AS58921
as-name:        CSL-AS-AP
descr:          Capricorn Society Limited
descr:          172 Burswood Road, Burswood WA 6100
country:        AU
org:            ORG-CSL1-AP
admin-c:        CSLA2-AP
tech-c:         CSLA2-AP
abuse-c:        AC1743-AP
mnt-lower:      MAINT-CSL-AU
mnt-routes:     MAINT-CSL-AU
mnt-by:         APNIC-HM
mnt-irt:        IRT-CSL-AU
last-modified:  2020-06-10T13:06:27Z
source:         APNIC

irt:            IRT-CSL-AU
address:        172 Burswood Road, Burswood WA 6100
e-mail:         hostmaster@capricorn.coop
abuse-mailbox:  hostmaster@capricorn.coop
admin-c:        CSLA2-AP
tech-c:         CSLA2-AP
auth:           # Filtered
remarks:        hostmaster@capricorn.coop was validated on 2026-02-11
mnt-by:         MAINT-CSL-AU
last-modified:  2026-02-11T00:12:51Z
source:         APNIC

organisation:   ORG-CSL1-AP
org-name:       Capricorn Society Limited
org-type:       LIR
country:        AU
address:        Level 19, 141 St Georges Terrace, Perth WA 6000
phone:          +61-8-6250-9500
fax-no:         +61-8-6250-9600
e-mail:         hostmaster@capricorn.coop
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-01-29T12:55:19Z
source:         APNIC

role:           ABUSE CSLAU
country:        ZZ
address:        172 Burswood Road, Burswood WA 6100
phone:          +000000000
e-mail:         hostmaster@capricorn.coop
admin-c:        CSLA2-AP
tech-c:         CSLA2-AP
nic-hdl:        AC1743-AP
remarks:        Generated from irt object IRT-CSL-AU
remarks:        hostmaster@capricorn.coop was validated on 2026-02-11
abuse-mailbox:  hostmaster@capricorn.coop
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-11T00:13:26Z
source:         APNIC

role:           Capricorn Society Limited administrator
address:        172 Burswood Road, Burswood WA 6100
country:        AU
phone:          +61 8 6250 9555
fax-no:         +61 8 6250 9555
e-mail:         hostmaster@capricorn.coop
admin-c:        CSLA2-AP
tech-c:         CSLA2-AP
nic-hdl:        CSLA2-AP
mnt-by:         MAINT-CSL-AU
last-modified:  2013-05-08T23:04:17Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)

Parsed Whois Response

Peers

AS Number	Description	Country
AS49915	Megaport UK Limited	GB
AS58511	Anycast Global Backbone	AU
AS24482	SG.GS	SG
AS4764	Aussie Broadband	AU
AS63956	5G NETWORK OPERATIONS PTY LTD	AU
AS4826	Vocus Connect International Backbone	AU
AS49915	Megaport (UK) Limited	GB
AS148968	Falcore Investments Pty Ltd	AU
AS4826	VOCUS PTY LTD	AU