203.21.199.0/24

AS1221  ·  Telstra Limited

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Summary

Country Australia
Domain nsw.gov.au
ASN AS1221
Registry APNIC
ID NNLHD-AU

WHOIS Details

inetnum:        203.21.192.0 - 203.21.199.255
netname:        NNLHD-AU
descr:          Northern NSW Local Health District
country:        AU
org:            ORG-NNLH1-AP
admin-c:        NNLH1-AP
tech-c:         NNLH1-AP
abuse-c:        AN762-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-NNLHD-AU
mnt-routes:     MAINT-NNLHD-AU
mnt-irt:        IRT-NNLHD-AU
last-modified:  2020-06-22T05:06:25Z
source:         APNIC

irt:            IRT-NNLHD-AU
address:        Locked bag 11, Lismore NSW 2480
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        NNLH1-AP
tech-c:         NNLH1-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-10-14
mnt-by:         MAINT-NNLHD-AU
last-modified:  2025-11-18T00:32:31Z
source:         APNIC

organisation:   ORG-NNLH1-AP
org-name:       Northern NSW Local Health District
org-type:       LIR
country:        AU
address:        Crawford House
address:        Hunter Street
phone:          +61 2 6620 2295
fax-no:         +61 2 6620 2230
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-01-24T13:00:37Z
source:         APNIC

role:           ABUSE NNLHDAU
country:        ZZ
address:        Locked bag 11, Lismore NSW 2480
phone:          +000000000
e-mail:         [email protected]
admin-c:        NNLH1-AP
tech-c:         NNLH1-AP
nic-hdl:        AN762-AP
remarks:        Generated from irt object IRT-NNLHD-AU
remarks:        [email protected] was validated on 2025-10-14
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-14T20:51:03Z
source:         APNIC

role:           Northern NSW Local Health District administrator
address:        Locked bag 11, Lismore NSW 2480
country:        AU
phone:          +61 2 6620 2295
fax-no:         +61 2 6620 2295
e-mail:         [email protected]
admin-c:        NNLH1-AP
tech-c:         NNLH1-AP
nic-hdl:        NNLH1-AP
mnt-by:         MAINT-NNLHD-AU
last-modified:  2018-08-29T23:34:27Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.21.0.0/16

Range ASN Company Num of IPs
203.21.112.0/21 AS133612 VODAFONE AUSTRALIA PTY LIMITED 2,048
203.21.24.0/21 AS703 Verizon Australia PTY Limited 2,048
203.21.140.0/22 AS135409 Kacific Broadband Satellites Pte Ltd 1,024
203.21.108.0/22 AS133612 VODAFONE AUSTRALIA PTY LIMITED 1,024
203.21.150.0/23 AS137896 Hunter Water Corporation 512
203.21.128.0/23 AS2764 St. Vincent's Health & Aged Care Ltd. 512
203.21.130.0/23 AS10148 The University of Melbourne 512
203.21.42.0/23 AS56118 47/111 Tiwanon Road 512
203.21.76.0/23 AS38549 Viewbank Rise Networks 512
203.21.66.0/24 AS209854 Cyberzone S.A. 256
203.21.4.0/24 AS216053 Data Cloud Technology d.o.o Kragujevac 256
203.21.7.0/24 AS24448 Synamedia Technologies (India) Private Limited 256
203.21.79.0/24 AS2764 First Linear 256
203.21.72.0/24 AS395793 Mistic Internet Security Pty Ltd 256
203.21.125.0/24 AS45671 MailGuard Pty. Ltd. 256
203.21.20.0/24 AS4739 iiNet Limited 256
203.21.134.0/24 AS58716 Penrith City Council 256
203.21.5.0/24 AS7545 Micronica 256
203.21.78.0/24 AS7545 iiNet Limited 256
203.21.121.0/24 AS7575 Universities Australia 256
203.21.37.0/24 AS7575 Australian Academic and Research Network 256
203.21.83.0/24 AS7647 OnTheNet Pty Ltd 256
203.21.95.0/24 AS9009 Formosa Sydney Pty Limited 256
203.21.22.0/24 AS9266 Fiveways International Limited 256
203.21.207.0/24 AS10143 Infinet Group Pty Ltd 256
203.21.12.0/24 AS9650 CITEC 256
203.21.9.0/24 AS10143 OCTEC Incorporated 256
203.21.40.0/24 AS133015 City of Stirling 256
203.21.140.0/24 AS135409 Western Samoa Pool 256
203.21.65.0/24 AS154329 Phoenix Business Solutions Australia Pty Ltd 256
203.21.120.0/24 AS17882 Univision LLC 256
203.21.21.0/24 AS17889 Intraceptives Pty Ltd 256
203.21.104.0/24 AS18986 Calligo (Canada) Inc. 256
203.21.47.0/24 AS18986 Calligo (Canada) Inc. 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

3 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
203.21.199.240 AS1221 Telstra Limited 12.67ms from Sydney, AU

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
161.8.140.168 AS6079 RCN 1.74ms from Ashburn, US
108.210.0.184 AS7018 AT&T Enterprises, LLC 1.60ms from Atlanta, US
220.194.119.104 AS4837 CHINA UNICOM China169 Backbone 4.54ms from Beijing, CN
99.72.35.136 AS7018 AT&T Enterprises, LLC 11.37ms from Chicago, US
124.253.182.88 AS17917 Quadrant Televentures Limited 9.42ms from Delhi, IN
93.130.200.104 AS6805 Telefonica Germany GmbH & Co.OHG 2.38ms from Frankfurt am Main, DE
72.191.59.40 AS11427 Charter Communications Inc 9.27ms from Houston, US
45.176.246.40 AS268961 ACONE ASSESSORIA E CONSULTORIA EMPRESARIAL LTDA 10.03ms from Joao Pessoa, BR
71.196.96.104 AS7922 Comcast Cable Communications, LLC 5.72ms from Miami, US
122.133.60.72 AS2518 BIGLOBE Inc. 5.88ms from Osaka, JP
135.234.126.232 AS8075 Microsoft Corporation 0.21ms from Phoenix, US
187.221.36.8 AS8151 UNINET 4.70ms from Santiago de Queretaro, MX
153.37.207.200 AS4837 CHINA UNICOM China169 Backbone 4.68ms from Shanghai, CN
58.111.230.168 AS4804 Microplex PTY LTD 3.51ms from Sydney, AU
39.156.183.184 AS9808 China Mobile Communications Group Co., Ltd. 4.32ms from Beijing, CN
98.101.22.136 AS11426 Charter Communications Inc 0.52ms from Charlotte, US
59.178.81.184 AS9829 National Internet Backbone 10.55ms from Delhi, IN
149.96.177.120 AS16839 SERVICENOW, INC. 0.77ms from Frankfurt am Main, DE
137.221.39.40 AS48152 Digital Frankfurt GmbH 0.43ms from Frankfurt am Main, DE
187.243.68.24 AS13999 Mega Cable, S.A. de C.V. 14.14ms from Guadalajara, MX
89.143.149.56 AS5603 Telekom Slovenije, d.d. 1.24ms from Ljubljana, SI
86.10.102.24 AS5089 Virgin Media Limited 8.04ms from London, GB
151.229.135.152 AS5607 Sky UK Limited 5.61ms from London, GB
101.62.195.104 AS210278 Sky Italia srl 0.13ms from Milan, IT
185.208.139.40 AS30848 UNIDATA S.p.A. 0.35ms from Milan, IT

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f6 203.21.199.240
traceroute to 203.21.199.240 (203.21.199.240): 64 hops max, 52 byte packets
7 [AS1221] 203.50.12.132 0.955 ms
8 [AS1221] 203.50.11.99 0.976 ms
9 [AS1221] 203.50.11.102 1.212 ms
10 [AS1221] 110.145.218.234 12.543 ms
11 [AS1221] 110.145.218.234 629.895 ms
12 [AS1221] 203.21.199.240 12.979 ms
Measurement taken from IPinfo ProbeNet in Sydney, AU
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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