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
203.21.199.197 AS1221 Telstra Limited 12.54ms 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
181.57.196.248 AS14080 Telmex Colombia S.A. 1.25ms from Bogota, CO
80.70.184.168 AS34372 VegaSystems GmbH & Co. KG 7.37ms from Duesseldorf, DE
98.128.180.216 AS8473 Bahnhof AB 13.14ms from Falkenberg, SE
83.11.8.200 AS5617 Orange Polska Spolka Akcyjna 8.02ms from Gdansk, PL
31.49.105.232 AS2856 British Telecommunications PLC 1.79ms from London, GB
66.214.121.136 AS20115 Charter Communications LLC 4.29ms from Los Angeles, US
82.186.41.168 AS3269 Telecom Italia S.p.A. 1.72ms from Milan, IT
184.73.157.8 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
39.108.88.232 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.11ms from Shenzhen, CN
58.111.230.168 AS4804 Microplex PTY LTD 3.47ms from Sydney, AU
210.132.218.152 AS2527 Sony Network Communications Inc. 6.38ms from Tokyo, JP
196.219.59.248 AS8452 TE-AS 5.13ms from Cairo, EG
121.124.165.232 AS9318 SK Broadband Co Ltd 1.81ms from Incheon, KR
195.206.173.248 AS43915 TrueSpeed Communications Limited 3.52ms from London, GB
23.242.220.72 AS20001 Charter Communications Inc 5.08ms from Los Angeles, US
194.207.141.120 AS12390 KCOM Group Limited 3.14ms from Manchester, GB
73.88.188.8 AS7922 Comcast Cable Communications, LLC 6.27ms from Murfreesboro, US
34.104.81.248 AS396982 Google LLC 0.11ms from Sao Paulo, BR
49.24.100.24 AS4766 Korea Telecom 5.35ms from Seoul, KR
188.166.220.168 AS14061 DigitalOcean, LLC 0.20ms from Singapore, SG
60.67.188.72 AS17676 SoftBank Corp. 2.92ms from Tokyo, JP
60.60.66.56 AS9824 JCOM Co., Ltd. 11.72ms from Tokyo, JP
177.37.0.8 AS262462 Aranet Play 12.17ms from Brasilia, BR
24.167.173.88 AS11426 Charter Communications Inc 7.33ms from Charlotte, US
122.167.223.120 AS24560 Bharti Airtel Ltd., Telemedia Services 14.48ms from Chennai, IN

Traceroute

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

$
traceroute -a -n -q1 -f8 203.21.199.197
traceroute to 203.21.199.197 (203.21.199.197): 64 hops max, 52 byte packets
9 [AS1221] 203.50.11.176 2.155 ms
10 [AS1221] 203.50.11.99 2.11 ms
11 [AS1221] 203.50.11.102 1.38 ms
12 [AS1221] 110.145.218.234 12.876 ms
13 *
14 [AS1221] 203.21.199.197 13.057 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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