ASN AS45158 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS45158?

AS45158 is listed under TASMANET.

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.

AS45158 TASMANET | IPGeolocation.io

ASN Lookup Tool

TASMANET tasmanet.com.au

AU 12 Routes

AS Data

AS45158

AS45158 – TASMANET

AS Number	45158
AS Name	SYNTELPTYLTD-AU
Organization	TASMANET (org-ta137-ap)
Country	AU
Website	tasmanet.com.au
Number of IPv4 Routes	10
Number of IPv6 Routes	2
ASN type	BUSINESS
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS45158 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
103.251.172.0/23	AS45158	TASMANET	TASMANET	512
103.251.174.0/23	AS45158	TASMANET	TASMANET	512
103.102.118.0/24	AS45158	TASMANET	VETtrak Pty Ltd	256
203.16.175.0/24	AS45158	TASMANET	Blundstone Australia Pty Ltd	256
2407:1e00:1003::/48	AS45158	TASMANET	TASMANET	~1×10²⁴
120.29.245.0/24	AS45158	TASMANET	TASMANET	256
120.29.240.0/21	AS45158	TASMANET	TASMANET	2048
203.13.22.0/24	AS45158	TASMANET	Commission for the Conservation of Antarctic Marine Living R	256
203.17.166.0/24	AS45158	TASMANET	ISW	256
203.33.128.0/24	AS45158	TASMANET	ISW	256

Raw Whois Response

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

% Information related to 'AS45056 - AS46079'

as-block:       AS45056 - AS46079
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:  2009-09-29T05:48:11Z
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 'AS45158'

% Abuse contact for 'AS45158' is 'abuse@tasmanet.com.au'

aut-num:        AS45158
as-name:        SYNTELPTYLTD-AU
descr:          TASMANET
country:        AU
org:            ORG-TA137-AP
admin-c:        SPLA72-AP
tech-c:         SPLA72-AP
mnt-lower:      MAINT-SYNTELPTYLTD1-AU
mnt-routes:     MAINT-SYNTELPTYLTD1-AU
mnt-by:         APNIC-HM
mnt-irt:        IRT-SYNTELPTYLTD1-AU
abuse-c:        AS3875-AP
last-modified:  2025-08-18T05:27:06Z
source:         APNIC

irt:            IRT-SYNTELPTYLTD1-AU
address:        LEVEL 1, 45 CLARENCE STREET, SYDNEY NSW 2000
e-mail:         noc@tasmanet.com.au
abuse-mailbox:  abuse@tasmanet.com.au
admin-c:        SPLA72-AP
tech-c:         SPLA72-AP
auth:           # Filtered
remarks:        abuse@tasmanet.com.au was validated on 2026-02-15
remarks:        noc@tasmanet.com.au was validated on 2026-02-18
mnt-by:         MAINT-SYNTELPTYLTD1-AU
last-modified:  2026-02-18T22:06:49Z
source:         APNIC

organisation:   ORG-TA137-AP
org-name:       TASMANET
org-type:       LIR
country:        AU
address:        LEVEL 1
address:        45 CLARENCE STREET
phone:          +61407979784
e-mail:         michael.diamond@commsgroup.global
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-06-24T13:15:42Z
source:         APNIC

role:           ABUSE SYNTELPTYLTD1AU
country:        ZZ
address:        LEVEL 1, 45 CLARENCE STREET, SYDNEY NSW 2000
phone:          +000000000
e-mail:         noc@tasmanet.com.au
admin-c:        SPLA72-AP
tech-c:         SPLA72-AP
nic-hdl:        AS3875-AP
remarks:        Generated from irt object IRT-SYNTELPTYLTD1-AU
remarks:        abuse@tasmanet.com.au was validated on 2026-02-15
remarks:        noc@tasmanet.com.au was validated on 2026-02-18
abuse-mailbox:  abuse@tasmanet.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-18T22:07:19Z
source:         APNIC

role:           SYNTEL PTY LTD administrator
address:        LEVEL 1, 45 CLARENCE STREET, SYDNEY NSW 2000
country:        AU
phone:          +61407979784
e-mail:         michael.diamond@commsgroup.global
admin-c:        SPLA72-AP
tech-c:         SPLA72-AP
nic-hdl:        SPLA72-AP
mnt-by:         MAINT-SYNTELPTYLTD1-AU
last-modified:  2025-07-07T01:31:53Z
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" : "AS45056 - AS46079",
    "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" : "2009-09-29",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS45158",
    "as_name" : "SYNTELPTYLTD-AU",
    "description" : [ "TASMANET" ],
    "country" : "AU",
    "organization" : "ORG-TA137-AP",
    "admin_contacts" : [ "SPLA72-AP" ],
    "tech_contacts" : [ "SPLA72-AP" ],
    "abuse_contacts" : [ "AS3875-AP" ],
    "mnt_irt" : [ "IRT-SYNTELPTYLTD1-AU" ],
    "mnt_lower" : [ "MAINT-SYNTELPTYLTD1-AU" ],
    "mnt_routes" : [ "MAINT-SYNTELPTYLTD1-AU" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2025-08-18",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-SYNTELPTYLTD1-AU",
    "address" : [ "LEVEL 1, 45 CLARENCE STREET, SYDNEY NSW 2000" ],
    "street" : "Clarence Street",
    "state" : "NSW",
    "zip_code" : "2000",
    "email" : [ "noc@tasmanet.com.au" ],
    "abuse_mailbox" : [ "abuse@tasmanet.com.au" ],
    "admin_contacts" : [ "SPLA72-AP" ],
    "tech_contacts" : [ "SPLA72-AP" ],
    "remarks" : [ "abuse@tasmanet.com.au was validated on 2026-02-15", "noc@tasmanet.com.au was validated on 2026-02-18" ],
    "mnt_by" : [ "MAINT-SYNTELPTYLTD1-AU" ],
    "date_updated" : "2026-02-18",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-TA137-AP",
    "name" : "TASMANET",
    "type" : "LIR",
    "address" : [ "LEVEL 1", "45 CLARENCE STREET" ],
    "street" : "Clarence Street",
    "country" : [ "AU" ],
    "email" : [ "michael.diamond@commsgroup.global" ],
    "phone" : [ "+61407979784" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2025-06-24",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "SPLA72-AP",
    "name" : "SYNTEL PTY LTD administrator",
    "address" : [ "LEVEL 1, 45 CLARENCE STREET, SYDNEY NSW 2000" ],
    "street" : "Clarence Street",
    "state" : "NSW",
    "zip_code" : "2000",
    "country" : "AU",
    "email" : [ "michael.diamond@commsgroup.global" ],
    "phone" : [ "+61407979784" ],
    "admin_contacts" : [ "SPLA72-AP" ],
    "tech_contacts" : [ "SPLA72-AP" ],
    "mnt_by" : [ "MAINT-SYNTELPTYLTD1-AU" ],
    "date_updated" : "2025-07-07",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "SPLA72-AP",
    "name" : "SYNTEL PTY LTD administrator",
    "address" : [ "LEVEL 1, 45 CLARENCE STREET, SYDNEY NSW 2000" ],
    "street" : "Clarence Street",
    "state" : "NSW",
    "zip_code" : "2000",
    "country" : "AU",
    "email" : [ "michael.diamond@commsgroup.global" ],
    "phone" : [ "+61407979784" ],
    "admin_contacts" : [ "SPLA72-AP" ],
    "tech_contacts" : [ "SPLA72-AP" ],
    "mnt_by" : [ "MAINT-SYNTELPTYLTD1-AU" ],
    "date_updated" : "2025-07-07",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AS3875-AP",
    "name" : "ABUSE SYNTELPTYLTD1AU",
    "address" : [ "LEVEL 1, 45 CLARENCE STREET, SYDNEY NSW 2000" ],
    "street" : "Clarence Street",
    "state" : "NSW",
    "zip_code" : "2000",
    "country" : "ZZ",
    "email" : [ "noc@tasmanet.com.au" ],
    "abuse_mailbox" : [ "abuse@tasmanet.com.au" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "SPLA72-AP" ],
    "tech_contacts" : [ "SPLA72-AP" ],
    "remarks" : [ "Generated from irt object IRT-SYNTELPTYLTD1-AU", "abuse@tasmanet.com.au was validated on 2026-02-15", "noc@tasmanet.com.au was validated on 2026-02-18" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-02-18",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS132691	Anglicare Tasmania Inc	AU
AS135672	GRANGE RESOURCES TASMANIA PTY LTD	AU
AS132836	TASMANET	AU
AS64098	TASMANET	AU
AS142422	Hobart City Council	AU
AS12041	Afilias, Inc.	US
AS136240	TT-Line Company Pty Ltd	AU
AS38549	Viewbank Rise Networks	AU
AS135612	Hydro Electric Corporation	AU
AS135672	GRANGE RESOURCES (TASMANIA) PTY LTD	AU

Upstreams

AS Number	Description	Country
AS64098	TASMANET	AU

Downstreams

AS Number	Description	Country
AS132691	Anglicare Tasmania Inc	AU
AS135672	GRANGE RESOURCES TASMANIA PTY LTD	AU
AS132836	TASMANET	AU
AS38549	Viewbank Rise Networks	AU
AS135612	Hydro Electric Corporation	AU
AS142422	Hobart City Council	AU
AS136240	TT Line Company Pty Ltd	AU
AS131214	Interact Hosting Pty Ltd	AU
AS12041	Afilias, Inc.	US