ASN AS55941 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS55941?

AS55941 is listed under Cboe Australia Pty Ltd.

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.

AS55941 Cboe Australia Pty Ltd

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Legacy Routes

Cboe Australia Pty Ltd cboe.com

AU 0 Routes

AS Data

AS55941

AS55941 – Cboe Australia Pty Ltd

AS Number	55941
AS Name	CBOE-AU
Organization	Cboe Australia Pty Ltd (org-capl4-ap)
Country	AU
Website	cboe.com
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	APNIC
Date Allocated	N/A

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Raw Whois Response

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

% Information related to 'AS55296 - AS56319'

as-block:       AS55296 - AS56319
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:  2009-09-03T01:15:30Z
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 'AS55941'

% Abuse contact for 'AS55941' is 'netabuse@cboe.com'

aut-num:        AS55941
as-name:        CBOE-AU
descr:          Cboe Australia Pty Ltd
descr:          Level 23
descr:          Governor Phillip Tower
descr:          1 Farrer Place
country:        AU
org:            ORG-CAPL4-AP
admin-c:        CAPL12-AP
tech-c:         CAPL12-AP
abuse-c:        AA2489-AP
mnt-lower:      MAINT-AU-CBOE
mnt-routes:     MAINT-AU-CBOE
mnt-by:         APNIC-HM
mnt-irt:        IRT-AU-CBOE
last-modified:  2022-03-15T01:46:36Z
source:         APNIC

irt:            IRT-AU-CBOE
address:        Sydney
e-mail:         poc@cboe.com
abuse-mailbox:  netabuse@cboe.com
admin-c:        CAPL12-AP
tech-c:         CAPL12-AP
auth:           # Filtered
remarks:        poc@cboe.com was validated on 2026-02-03
remarks:        netabuse@cboe.com was validated on 2026-02-03
mnt-by:         MAINT-AU-CBOE
last-modified:  2026-02-03T16:59:07Z
source:         APNIC

organisation:   ORG-CAPL4-AP
org-name:       Cboe Australia Pty Ltd
org-type:       LIR
country:        AU
address:        Level 23, Governor Phillip Tower
address:        1 Farrer Place
phone:          +61 2 8078 1700
fax-no:         +61 2 8078 1712
e-mail:         au.networks@cboe.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:44Z
source:         APNIC

role:           ABUSE AUCBOE
country:        ZZ
address:        Sydney
phone:          +000000000
e-mail:         poc@cboe.com
admin-c:        CAPL12-AP
tech-c:         CAPL12-AP
nic-hdl:        AA2489-AP
remarks:        Generated from irt object IRT-AU-CBOE
remarks:        poc@cboe.com was validated on 2026-02-03
remarks:        netabuse@cboe.com was validated on 2026-02-03
abuse-mailbox:  netabuse@cboe.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-03T16:59:09Z
source:         APNIC

role:           Cboe Australia Pty Ltd administrator
address:        Sydney
country:        AU
phone:          +61 2 8078 1700
e-mail:         poc@cboe.com
admin-c:        CAPL12-AP
tech-c:         CAPL12-AP
nic-hdl:        CAPL12-AP
mnt-by:         MAINT-AU-CBOE
last-modified:  2023-06-22T00:42:25Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS55296 - AS56319",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2009-09-03",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS55941",
    "as_name" : "CBOE-AU",
    "description" : [ "Cboe Australia Pty Ltd", "Level 23", "Governor Phillip Tower", "1 Farrer Place" ],
    "country" : "AU",
    "organization" : "ORG-CAPL4-AP",
    "admin_contacts" : [ "CAPL12-AP" ],
    "tech_contacts" : [ "CAPL12-AP" ],
    "abuse_contacts" : [ "AA2489-AP" ],
    "mnt_irt" : [ "IRT-AU-CBOE" ],
    "mnt_lower" : [ "MAINT-AU-CBOE" ],
    "mnt_routes" : [ "MAINT-AU-CBOE" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2022-03-15",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-AU-CBOE",
    "address" : [ "Sydney" ],
    "city" : "Sydney",
    "email" : [ "poc@cboe.com" ],
    "abuse_mailbox" : [ "netabuse@cboe.com" ],
    "admin_contacts" : [ "CAPL12-AP" ],
    "tech_contacts" : [ "CAPL12-AP" ],
    "remarks" : [ "poc@cboe.com was validated on 2026-02-03", "netabuse@cboe.com was validated on 2026-02-03" ],
    "mnt_by" : [ "MAINT-AU-CBOE" ],
    "date_updated" : "2026-02-03",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-CAPL4-AP",
    "name" : "Cboe Australia Pty Ltd",
    "type" : "LIR",
    "address" : [ "Level 23, Governor Phillip Tower", "1 Farrer Place" ],
    "street" : "Farrer Place",
    "country" : [ "AU" ],
    "email" : [ "au.networks@cboe.com" ],
    "phone" : [ "+61 2 8078 1700" ],
    "fax_no" : [ "+61 2 8078 1712" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "CAPL12-AP",
    "name" : "Cboe Australia Pty Ltd administrator",
    "address" : [ "Sydney" ],
    "city" : "Sydney",
    "country" : "AU",
    "email" : [ "poc@cboe.com" ],
    "phone" : [ "+61 2 8078 1700" ],
    "admin_contacts" : [ "CAPL12-AP" ],
    "tech_contacts" : [ "CAPL12-AP" ],
    "mnt_by" : [ "MAINT-AU-CBOE" ],
    "date_updated" : "2023-06-22",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "CAPL12-AP",
    "name" : "Cboe Australia Pty Ltd administrator",
    "address" : [ "Sydney" ],
    "city" : "Sydney",
    "country" : "AU",
    "email" : [ "poc@cboe.com" ],
    "phone" : [ "+61 2 8078 1700" ],
    "admin_contacts" : [ "CAPL12-AP" ],
    "tech_contacts" : [ "CAPL12-AP" ],
    "mnt_by" : [ "MAINT-AU-CBOE" ],
    "date_updated" : "2023-06-22",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AA2489-AP",
    "name" : "ABUSE AUCBOE",
    "address" : [ "Sydney" ],
    "city" : "Sydney",
    "country" : "ZZ",
    "email" : [ "poc@cboe.com" ],
    "abuse_mailbox" : [ "netabuse@cboe.com" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "CAPL12-AP" ],
    "tech_contacts" : [ "CAPL12-AP" ],
    "remarks" : [ "Generated from irt object IRT-AU-CBOE", "poc@cboe.com was validated on 2026-02-03", "netabuse@cboe.com was validated on 2026-02-03" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-02-03",
    "source" : "APNIC"
  } ]
}