ASN AS4738 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS4738?

AS4738 is listed under AARNET Test.

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.

AS4738 AARNET Test | IPGeolocation.io

ASN Lookup Tool

Search ASN

AS Data

IP Routes

Raw Whois

Parsed Whois

Peers

Upstreams

Downstreams

Contacts

Legacy Routes

AARNET Test aarnet.edu.au

AU 0 Routes

AS Data

AS4738

AS4738 – AARNET Test

AS Number	4738
AS Name	AARNET-TEST-AS-AP
Organization	AARNET Test(org-aaar1-ap)
Country	AU
Website	aarnet.edu.au
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS4738 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

Raw Whois Response

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

% Information related to 'AS4608 - AS4865'

as-block:       AS4608 - AS4865
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:  2019-05-20T03:52:26Z
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 'AS4738'

% Abuse contact for 'AS4738' is 'abuse@aarnet.edu.au'

aut-num:        AS4738
as-name:        AARNET-TEST-AS-AP
descr:          AARNET Test
country:        AU
org:            ORG-AAAR1-AP
admin-c:        ANOC-AP
tech-c:         ANOC-AP
abuse-c:        AA1638-AP
notify:         noc@aarnet.edu.au
mnt-lower:      MAINT-AARNET-AP
mnt-routes:     MAINT-AARNET-AP
mnt-by:         APNIC-HM
mnt-irt:        IRT-AARNET-AU
last-modified:  2026-01-30T04:40:54Z
source:         APNIC

irt:            IRT-AARNET-AU
address:        AARNet Pty Ltd
e-mail:         abuse@aarnet.edu.au
abuse-mailbox:  abuse@aarnet.edu.au
admin-c:        ANOC-AP
tech-c:         ANOC-AP
auth:           # Filtered
remarks:        abuse@aarnet.edu.au was validated on 2025-10-07
mnt-by:         MAINT-AARNET-AP
last-modified:  2026-01-30T04:42:26Z
source:         APNIC

organisation:   ORG-AAAR1-AP
org-name:       Australian Academic and Research Network
org-type:       LIR
country:        AU
address:        PO Box 5519
phone:          +61-2-6222-3530
fax-no:         +61-2-6222-3535
e-mail:         irrcontact@aarnet.edu.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2026-01-30T13:04:55Z
source:         APNIC

role:           ABUSE AARNETAU
country:        ZZ
address:        AARNet Pty Ltd
phone:          +000000000
e-mail:         abuse@aarnet.edu.au
admin-c:        ANOC-AP
tech-c:         ANOC-AP
nic-hdl:        AA1638-AP
remarks:        Generated from irt object IRT-AARNET-AU
remarks:        abuse@aarnet.edu.au was validated on 2025-10-07
abuse-mailbox:  abuse@aarnet.edu.au
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-30T04:42:58Z
source:         APNIC

role:           AARNet Network Operations Centre
remarks:
remarks:
remarks:
remarks:        Send abuse reports to abuse@aarnet.edu.au
remarks:        Please include timestamps and offset to UTC in logs
remarks:        Peering requests to peering@aarnet.edu.au
remarks:
address:        AARNet Pty Ltd
address:        GPO Box 1559
address:        Canberra
address:        ACT  2601
country:        AU
phone:          +61 1300 275 662
phone:          +61 2 6222 3555
e-mail:         noc@aarnet.edu.au
admin-c:        ANOC-AP
tech-c:         ANOC-AP
nic-hdl:        ANOC-AP
mnt-by:         MAINT-AARNET-AP
last-modified:  2020-12-02T07:35:01Z
source:         APNIC

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