ASN AS4647 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS4647?

AS4647 is listed under Centra Networks.

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.

AS4647 Centra Networks | IPGeolocation.io

ASN Lookup Tool

Centra Networks centra.com.au

AU 8 Routes

AS Data

AS4647

AS4647 – Centra Networks

AS Number	4647
AS Name	CENTRANETWORKS-AU
Organization	Centra Networks(org-cn1-ap)
Country	AU
Website	centra.com.au
Number of IPv4 Routes	8
Number of IPv6 Routes	0
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS4647 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

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
103.246.28.0/24	AS4647	Centra Networks	Centra Networks Public	256
103.246.29.0/24	AS4647	Centra Networks	Centra Networks Public	256
103.246.28.0/22	AS4647	Centra Networks	Centra Networks Public	1024
203.30.140.0/24	AS4647	Centra Networks	Centra Networks	256
103.246.30.0/23	AS4647	Centra Networks	Centra Networks Public	512
103.246.30.0/24	AS4647	Centra Networks	Centra Networks Public	256
103.246.28.0/23	AS4647	Centra Networks	Centra Networks Public	512
103.246.31.0/24	AS4647	Centra Networks	Centra Networks Public	256

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 'AS4647'

% Abuse contact for 'AS4647' is 'abuse@centra.com.au'

aut-num:        AS4647
as-name:        CENTRANETWORKS-AU
descr:          Centra Networks
country:        AU
org:            ORG-CN1-AP
admin-c:        CNNA2-AP
tech-c:         CNNA2-AP
abuse-c:        AC2056-AP
mnt-lower:      MAINT-CENTRANETWORKS-AU
mnt-routes:     MAINT-CENTRANETWORKS-AU
mnt-by:         APNIC-HM
mnt-irt:        IRT-CENTRANETWORKS-AU
last-modified:  2022-06-22T04:41:05Z
source:         APNIC

irt:            IRT-CENTRANETWORKS-AU
address:        1/200 Barry Pde Fortitude Valley QLD 4006
e-mail:         noc@centra.com.au
abuse-mailbox:  abuse@centra.com.au
admin-c:        CNNA2-AP
tech-c:         CNNA2-AP
auth:           # Filtered
remarks:        noc@centra.com.au was validated on 2025-11-12
remarks:        abuse@centra.com.au was validated on 2025-12-24
mnt-by:         MAINT-CENTRANETWORKS-AU
last-modified:  2025-12-24T01:50:00Z
source:         APNIC

organisation:   ORG-CN1-AP
org-name:       Centra Networks
org-type:       LIR
country:        AU
address:        1/200 Barry Parade
phone:          +61-7-36202100
e-mail:         support@centra.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:51Z
source:         APNIC

role:           ABUSE CENTRANETWORKSAU
country:        ZZ
address:        1/200 Barry Pde Fortitude Valley QLD 4006
phone:          +000000000
e-mail:         noc@centra.com.au
admin-c:        CNNA2-AP
tech-c:         CNNA2-AP
nic-hdl:        AC2056-AP
remarks:        Generated from irt object IRT-CENTRANETWORKS-AU
remarks:        noc@centra.com.au was validated on 2025-11-12
remarks:        abuse@centra.com.au was validated on 2025-12-24
abuse-mailbox:  abuse@centra.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-24T01:50:39Z
source:         APNIC

role:           CENTRA NETWORKS - Network Administrator
address:        1/200 Barry Pde, Fortitude Valley QLD 4006
country:        AU
phone:          +61 7 3620 2100
e-mail:         support@centra.com.au
admin-c:        CNNA2-AP
tech-c:         CNNA2-AP
nic-hdl:        CNNA2-AP
mnt-by:         MAINT-CENTRANETWORKS-AU
last-modified:  2019-01-07T00:56:10Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-SG1)

Parsed Whois Response

Peers

AS Number	Description	Country
AS132808	IP Telco	AU

Upstreams

AS Number	Description	Country
AS132808	IP Telco	AU

Contacts

Email Contacts

support@centra.com.au

Abuse Contacts

abuse@centra.com.au