203.21.197.0/24

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
181.177.60.232 AS264642 TELESISTEMA S.R.L. 18.40ms from Asuncion, PY
111.22.34.88 AS56047 China Mobile communications corporation 1.72ms from Changsha, CN
14.175.241.40 AS45899 VNPT Corp 5.01ms from Da Nang, VN
27.70.35.248 AS7552 Viettel Group 1.89ms from Hanoi, VN
130.164.138.248 AS25019 Saudi Telecom Company JSC 4.34ms from Manama, BH
219.75.140.216 AS17511 OPTAGE Inc. 0.97ms from Osaka, JP
175.251.231.88 AS4766 Korea Telecom 8.82ms from Seoul, KR
184.188.207.56 AS22773 Cox Communications Inc. 0.51ms from Atlanta, US
217.39.233.136 AS2856 British Telecommunications PLC 5.64ms from Erith, GB
154.86.16.104 AS140227 Hong Kong Communications International Co., Limited 0.30ms from Hong Kong, HK
93.171.249.72 AS210241 LENZ.NET LLC 1.54ms from Kyiv, UA
124.95.3.88 AS4837 CHINA UNICOM China169 Backbone 4.68ms from Liaoyang, CN
62.209.27.232 AS31452 ZAIN BAHRAIN B.S.C. 0.55ms from Manama, BH
73.58.170.184 AS7922 Comcast Cable Communications, LLC 3.21ms from Murfreesboro, US
91.17.3.24 AS3320 Deutsche Telekom AG 7.61ms from Nuernberg, DE
88.121.104.72 AS12322 Free SAS 2.50ms from Paris, FR
69.109.0.232 AS7018 AT&T Enterprises, LLC 5.97ms from Redding, US
186.206.230.88 AS28573 Claro NXT Telecomunicacoes Ltda 14.58ms from Rio de Janeiro, BR
186.96.187.56 AS22884 TOTAL PLAY TELECOMUNICACIONES SA DE CV 12.60ms from Santiago de Queretaro, MX
189.115.43.88 AS18881 TELEFÔNICA BRASIL S.A 13.15ms from Sao Paulo, BR
70.69.17.104 AS6327 Shaw Communications 8.64ms from Seattle, US
156.225.40.24 AS62513 GoCodeIT Inc 0.15ms from Ashburn, US
34.31.96.24 AS396982 Google LLC 0.11ms from Council Bluffs, US
117.239.16.88 AS9829 National Internet Backbone 2.01ms from Delhi, IN
80.221.42.72 AS1759 Telia Finland Oyj 0.96ms from Helsinki, FI

Traceroute

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

$
traceroute -a -n -q1 -f5 -m22 203.21.197.59
traceroute to 203.21.197.59 (203.21.197.59): 22 hops max, 52 byte packets
6 *
7 *
8 [AS4637] 210.57.53.124 51.378 ms
9 [AS4637] 202.84.178.13 51.88 ms
10 [AS4637] 202.84.249.9 193.69 ms
11 [AS4637] 202.84.141.26 324.947 ms
12 [AS1221] 203.50.13.89 324.622 ms
13 [AS1221] 203.50.6.102 326.785 ms
14 [AS1221] 203.50.6.119 327.866 ms
15 [AS1221] 203.50.11.95 327.517 ms
16 *
17 [AS1221] 110.145.218.233 339.715 ms
18 *
19 [AS1221] 110.145.218.233 351.871 ms
20 *
21 *
22 *
Measurement taken from IPinfo ProbeNet in Crotone, IT
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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