What is ASN AS135121?

ASN AS135121 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS135121?

AS135121 is listed under Prospa Advance 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.

AS135121 Prospa Advance Pty Ltd

ASN Lookup Tool

Prospa Advance Pty Ltd prospa.com

AU 1 Routes

AS Data

AS135121

AS135121 – Prospa Advance Pty Ltd

AS Number	135121
AS Name	PROSPA-AS-AP
Organization	Prospa Advance Pty Ltd (org-papl3-ap)
Country	AU
Website	prospa.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	APNIC
Date Allocated	2016-02-23

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Use ASN data for AS135121 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
103.209.243.0/24	AS135121	Prospa Advance Pty Ltd	Prospa Advance Pty Ltd	256

Raw Whois Response

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

% Information related to 'AS134557 - AS135580'

as-block:       AS134557 - AS135580
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:  2014-09-03T01:31:50Z
source:         APNIC

role:           APNIC Hostmaster
address:        PO Box 3646
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:  2026-08-26T00:40:00Z
source:         APNIC

% Information related to 'AS135121'

% Abuse contact for 'AS135121' is 'domain.admin@prospa.com'

aut-num:        AS135121
as-name:        PROSPA-AS-AP
descr:          Prospa Advance Pty Ltd
country:        AU
org:            ORG-PAPL3-AP
admin-c:        PAPL2-AP
tech-c:         PAPL2-AP
abuse-c:        AP886-AP
mnt-lower:      MAINT-PROSPA-AU
mnt-routes:     MAINT-PROSPA-AU
mnt-by:         APNIC-HM
mnt-irt:        IRT-PROSPA-AU
last-modified:  2020-07-07T23:10:05Z
source:         APNIC

irt:            IRT-PROSPA-AU
address:        Level 1, 4-16 Yurong Street, Darlinghurst, NSW 2010
e-mail:         domain.admin@prospa.com
abuse-mailbox:  domain.admin@prospa.com
admin-c:        PAPL2-AP
tech-c:         PAPL2-AP
auth:           # Filtered
remarks:        domain.admin@prospa.com was validated on 2026-07-22
mnt-by:         MAINT-PROSPA-AU
last-modified:  2026-07-22T23:40:49Z
source:         APNIC

organisation:   ORG-PAPL3-AP
org-name:       Prospa Advance Pty Ltd
org-type:       LIR
country:        AU
address:        Level 1, 4-16 Yurong Street
phone:          +611300882867
e-mail:         domain.admin@prospa.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:49Z
source:         APNIC

role:           ABUSE PROSPAAU
country:        ZZ
address:        Level 1, 4-16 Yurong Street, Darlinghurst, NSW 2010
phone:          +000000000
e-mail:         domain.admin@prospa.com
admin-c:        PAPL2-AP
tech-c:         PAPL2-AP
nic-hdl:        AP886-AP
remarks:        Generated from irt object IRT-PROSPA-AU
remarks:        domain.admin@prospa.com was validated on 2026-07-22
abuse-mailbox:  domain.admin@prospa.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-07-22T23:41:25Z
source:         APNIC

role:           Prospa Advance Pty Ltd administrator
address:        Level 1, 4-16 Yurong Street, Darlinghurst, NSW 2010
country:        AU
phone:          +611300882867
fax-no:         +611300882867
e-mail:         domain.admin@prospa.com
admin-c:        PAPL2-AP
tech-c:         PAPL2-AP
nic-hdl:        PAPL2-AP
mnt-by:         MAINT-PROSPA-AU
last-modified:  2023-10-11T05:23:39Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS134557 - AS135580",
    "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" : "2014-09-03",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS135121",
    "as_name" : "PROSPA-AS-AP",
    "description" : [ "Prospa Advance Pty Ltd" ],
    "country" : "AU",
    "organization" : "ORG-PAPL3-AP",
    "admin_contacts" : [ "PAPL2-AP" ],
    "tech_contacts" : [ "PAPL2-AP" ],
    "abuse_contacts" : [ "AP886-AP" ],
    "mnt_irt" : [ "IRT-PROSPA-AU" ],
    "mnt_lower" : [ "MAINT-PROSPA-AU" ],
    "mnt_routes" : [ "MAINT-PROSPA-AU" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2020-07-07",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-PROSPA-AU",
    "address" : [ "Level 1, 4-16 Yurong Street, Darlinghurst, NSW 2010" ],
    "street" : "Yurong Street",
    "city" : "Darlinghurst",
    "state" : "NSW",
    "zip_code" : "2010",
    "email" : [ "domain.admin@prospa.com" ],
    "abuse_mailbox" : [ "domain.admin@prospa.com" ],
    "admin_contacts" : [ "PAPL2-AP" ],
    "tech_contacts" : [ "PAPL2-AP" ],
    "remarks" : [ "domain.admin@prospa.com was validated on 2026-07-22" ],
    "mnt_by" : [ "MAINT-PROSPA-AU" ],
    "date_updated" : "2026-07-22",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-PAPL3-AP",
    "name" : "Prospa Advance Pty Ltd",
    "type" : "LIR",
    "address" : [ "Level 1, 4-16 Yurong Street" ],
    "street" : "Yurong Street",
    "country" : [ "AU" ],
    "email" : [ "domain.admin@prospa.com" ],
    "phone" : [ "+611300882867" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "PAPL2-AP",
    "name" : "Prospa Advance Pty Ltd administrator",
    "address" : [ "Level 1, 4-16 Yurong Street, Darlinghurst, NSW 2010" ],
    "street" : "Yurong Street",
    "city" : "Darlinghurst",
    "state" : "NSW",
    "zip_code" : "2010",
    "country" : "AU",
    "email" : [ "domain.admin@prospa.com" ],
    "phone" : [ "+611300882867" ],
    "fax_no" : [ "+611300882867" ],
    "admin_contacts" : [ "PAPL2-AP" ],
    "tech_contacts" : [ "PAPL2-AP" ],
    "mnt_by" : [ "MAINT-PROSPA-AU" ],
    "date_updated" : "2023-10-11",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "PAPL2-AP",
    "name" : "Prospa Advance Pty Ltd administrator",
    "address" : [ "Level 1, 4-16 Yurong Street, Darlinghurst, NSW 2010" ],
    "street" : "Yurong Street",
    "city" : "Darlinghurst",
    "state" : "NSW",
    "zip_code" : "2010",
    "country" : "AU",
    "email" : [ "domain.admin@prospa.com" ],
    "phone" : [ "+611300882867" ],
    "fax_no" : [ "+611300882867" ],
    "admin_contacts" : [ "PAPL2-AP" ],
    "tech_contacts" : [ "PAPL2-AP" ],
    "mnt_by" : [ "MAINT-PROSPA-AU" ],
    "date_updated" : "2023-10-11",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AP886-AP",
    "name" : "ABUSE PROSPAAU",
    "address" : [ "Level 1, 4-16 Yurong Street, Darlinghurst, NSW 2010" ],
    "street" : "Yurong Street",
    "city" : "Darlinghurst",
    "state" : "NSW",
    "zip_code" : "2010",
    "country" : "ZZ",
    "email" : [ "domain.admin@prospa.com" ],
    "abuse_mailbox" : [ "domain.admin@prospa.com" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "PAPL2-AP" ],
    "tech_contacts" : [ "PAPL2-AP" ],
    "remarks" : [ "Generated from irt object IRT-PROSPA-AU", "domain.admin@prospa.com was validated on 2026-07-22" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-07-22",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS2764	AAPT Limited	AU

Upstreams

AS Number	Description	Country
AS2764	AAPT Limited	AU

Contacts

Email Contacts

domain.admin@prospa.com

Abuse Contacts