1. All IP Ranges
  2. 1.0.0.0/8
  3. AS1221  | 1.128.0.0/11

1.128.0.0/11

AS1221  ·  Telstra Limited

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Summary

Country Australia
Domain telstra.net
ASN AS1221
Registry APNIC
ID TELSTRAINTERNET49-AU

WHOIS Details

inetnum:        1.128.0.0 - 1.159.255.255
netname:        TELSTRAINTERNET49-AU
descr:          Telstra Limited
country:        AU
org:            ORG-TC6-AP
admin-c:        TIAR-AP
tech-c:         TAN2-AP
abuse-c:        AT1005-AP
status:         ALLOCATED PORTABLE
remarks:        -----
remarks:        All reports regarding SPAM or security breaches
remarks:        should be addressed to [email protected]
remarks:        ------
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-AU-TIAR-AP
mnt-routes:     MAINT-AU-TIAR-AP
mnt-irt:        IRT-TELSTRA-AU
last-modified:  2024-05-10T00:50:21Z
geofeed:        https://geofeed.tools.telstra.net/geofeed.csv
source:         APNIC

irt:            IRT-TELSTRA-AU
address:        Telstra Internet
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-07-15
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2025-11-18T00:26:24Z
source:         APNIC

organisation:   ORG-TC6-AP
org-name:       Telstra Limited
org-type:       LIR
country:        AU
address:        242 Exhibition Street
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-12-06T08:30:50Z
source:         APNIC

role:           ABUSE TELSTRAAU
country:        ZZ
address:        Telstra Internet
phone:          +000000000
e-mail:         [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        AT1005-AP
remarks:        Generated from irt object IRT-TELSTRA-AU
remarks:        [email protected] was validated on 2025-07-15
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-15T22:43:15Z
source:         APNIC

role:           Telstra AU NOC
address:        Telstra Internet
address:        242 Exhibition Street
address:        Melbourne
address:        VIC 3000
country:        AU
phone:          +61 3 8650 3305
e-mail:         [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        TAN2-AP
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2025-11-26T05:11:17Z
source:         APNIC

person:         Telstra Internet Address Registry
address:        Telstra Internet
address:        242 Exhibition St
address:        Melbourne
address:        VIC 3000
country:        AU
phone:          +61 000000000
e-mail:         [email protected]
nic-hdl:        TIAR-AP
remarks:        Telstra Internet Address Registry Role Object
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2021-12-09T22:28:56Z
source:         APNIC

route:          1.128.0.0/11
origin:         AS1221
descr:          Telstra Corporation 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2019-12-11T21:02:34Z
source:         APNIC

route:          1.128.0.0/11
origin:         AS19905
descr:          Telstra Corporation Limited 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2022-09-12T01:15:36Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 1.0.0.0/8

Range ASN Company Num of IPs
1.208.0.0/12 AS3786 LG DACOM Corporation 1,048,576
1.160.0.0/12 AS3462 Data Communication Business Group, 1,048,576
1.120.0.0/13 AS1221 Telstra Limited 524,288
1.80.0.0/13 AS4134 CHINANET SHAANXI PROVINCE NETWORK 524,288
1.24.0.0/13 AS139007 China unicom InnerMongolia province network 524,288
1.224.0.0/13 AS131852 SK Broadband Co Ltd 524,288
1.24.0.0/13 AS9929 China unicom InnerMongolia province network 524,288
1.192.0.0/13 AS137687 CHINANET henan province network 524,288
1.224.0.0/13 AS9318 SK Broadband Co Ltd 524,288
1.224.0.0/13 AS10069 SK Broadband Co Ltd 524,288
1.192.0.0/13 AS4134 CHINANET henan province network 524,288
1.56.0.0/13 AS4837 China Unicom Heilongjiang province network 524,288
1.192.0.0/13 AS139018 CHINANET henan province network 524,288
1.224.0.0/13 AS23579 SK Broadband Co Ltd 524,288
1.80.0.0/13 AS134768 CHINANET SHAANXI PROVINCE NETWORK 524,288
1.80.0.0/13 AS4809 CHINANET SHAANXI PROVINCE NETWORK 524,288
1.192.0.0/13 AS139587 CHINANET henan province network 524,288
1.24.0.0/13 AS4837 China unicom InnerMongolia province network 524,288
1.12.0.0/14 AS132203 Tencent cloud computing (Beijing) Co., Ltd. 262,144
1.68.0.0/14 AS132147 CHINANET SHANXI PROVINCE NETWORK 262,144
1.68.0.0/14 AS4134 CHINANET SHANXI PROVINCE NETWORK 262,144
1.52.0.0/14 AS18403 FPT Telecom Company 262,144
1.68.0.0/14 AS142404 CHINANET SHANXI PROVINCE NETWORK 262,144
1.180.0.0/14 AS141006 CHINANET NeiMengGu province network 262,144
1.180.0.0/14 AS4134 CHINANET NeiMengGu province network 262,144
1.68.0.0/14 AS4809 CHINANET SHANXI PROVINCE NETWORK 262,144
1.112.0.0/14 AS17676 SOFTBANK Corp. 262,144
1.204.0.0/14 AS4134 CHINANET GUIZHOU PROVINCE NETWORK 262,144
1.40.0.0/14 AS4804 OPTUS INTERNET - RETAIL 262,144
1.188.0.0/14 AS4837 China Unicom Heilongjiang province network 262,144
1.12.0.0/14 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 262,144
1.64.0.0/15 AS4760 PCCW Limited 131,072
1.116.0.0/15 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 131,072
1.34.0.0/15 AS3462 Data Communication Business Group, 131,072
1.48.0.0/15 AS4134 CHINANET GUIZHOU PROVINCE NETWORK 131,072
1.184.0.0/15 AS4538 China Education and Research Network 131,072
1.168.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.169.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.166.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.167.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.170.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.164.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.162.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.161.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.163.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.165.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.5.0.0/16 AS4725 SoftBank Corp. 65,536
1.34.0.0/16 AS3462 Chunghwa Telecom Co.,Ltd. 65,536
1.20.0.0/16 AS23969 TOT Mobile Co LTD 65,536

Hosted domains

There are 175 domain names hosted across 154 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
1.156.34.112 data2insights.au 6
1.158.17.215 stuartreid.app 5
1.157.193.119 cafeaparis.com 4
1.145.12.46 menutickit.net 3
1.157.77.37 labelmabel.com 3
1.157.3.87 conduxit.com.au 3
1.158.31.194 ac-r.nu 2
1.141.112.163 c21dk.com.au 2
1.158.6.214 mentossss.com 2
1.145.248.97 digitalgrid.au 2
1.145.124.36 stonehavenconsulting.au 2
1.157.179.199 dyl.cx 2
1.145.88.116 s1194.org 2
1.157.6.9 eed.id.au 2
1.145.99.215 qwhs.com 2
1.158.16.51 quornichon.org 2
1.157.201.96 altitudeedu.com.au 1
1.159.6.239 vigilant-systems.com 1
1.158.112.87 emberblaze.xyz 1
1.159.33.179 nk2.me 1

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
Read more

Pingable IPs

24,711 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
1.156.141.66 AS1221 Telstra Limited 4.43ms from Brisbane, AU
1.156.163.112 AS1221 Telstra Limited 3.46ms from Brisbane, AU
1.156.145.152 AS1221 Telstra Limited 9.69ms from Brisbane, AU
1.156.138.52 AS1221 Telstra Limited 1.89ms from Brisbane, AU
1.156.39.60 AS1221 Telstra Limited 6.45ms from Sydney, AU
1.156.80.205 AS1221 Telstra Limited 6.59ms from Sydney, AU
1.157.59.241 AS1221 Telstra Limited 5.65ms from Sydney, AU
1.157.58.95 AS1221 Telstra Limited 8.11ms from Sydney, AU
1.157.60.71 AS1221 Telstra Limited 6.59ms from Sydney, AU
1.156.10.190 AS1221 Telstra Limited 4.64ms from Sydney, AU
1.157.41.253 AS1221 Telstra Limited 6.71ms from Sydney, AU
1.156.92.87 AS1221 Telstra Limited 13.47ms from Sydney, AU
1.156.130.75 AS1221 Telstra Limited 5.21ms from Brisbane, AU
1.156.170.217 AS1221 Telstra Limited 3.31ms from Brisbane, AU
1.156.171.127 AS1221 Telstra Limited 8.69ms from Brisbane, AU
1.156.64.247 AS1221 Telstra Limited 3.03ms from Sydney, AU
1.157.2.61 AS1221 Telstra Limited 6.16ms from Sydney, AU
1.156.75.125 AS1221 Telstra Limited 12.06ms from Sydney, AU
1.157.36.49 AS1221 Telstra Limited 6.72ms from Sydney, AU
1.156.34.112 AS1221 Telstra Limited 8.52ms from Sydney, AU
1.157.13.11 AS1221 Telstra Limited 5.93ms from Sydney, AU
1.156.22.21 AS1221 Telstra Limited 4.86ms from Sydney, AU
1.156.149.185 AS1221 Telstra Limited 2.71ms from Brisbane, AU
1.156.146.24 AS1221 Telstra Limited 16.72ms from Brisbane, AU
1.156.188.232 AS1221 Telstra Limited 6.93ms from Brisbane, 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
199.59.207.235 AS46786 IP Transit Inc. 0.48ms from Amsterdam, NL
119.249.151.11 AS4837 CHINA UNICOM China169 Backbone 10.94ms from Beijing, CN
77.3.209.91 AS6805 Telefonica Germany GmbH & Co.OHG 1.13ms from Hamburg, DE
92.252.26.235 AS9145 EWE TEL GmbH 6.36ms from Hamburg, DE
72.255.57.11 AS9541 Cyber Internet Services (Pvt) Ltd. 16.38ms from Karachi, PK
92.22.195.251 AS13285 TalkTalk Communications Limited 5.43ms from London, GB
46.174.197.203 AS212667 RECONN LLC 0.70ms from Moscow, RU
89.81.98.107 AS5410 Bouygues Telecom SA 9.92ms from Paris, FR
176.165.9.75 AS5410 Bouygues Telecom SA 7.52ms from Paris, FR
52.3.171.219 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
151.97.231.91 AS137 Consortium GARR 11.29ms from Rome, IT
121.169.66.219 AS4766 Korea Telecom 2.00ms from Seoul, KR
80.165.137.43 AS3292 TDC Holding A/S 4.44ms from Skanderborg, DK
13.115.255.107 AS16509 Amazon.com, Inc. 0.19ms from Tokyo, JP
41.98.224.107 AS36947 Telecom Algeria 9.13ms from Valencia, ES
20.105.157.43 AS8075 Microsoft Corporation 0.29ms from Amsterdam, NL
169.47.63.11 AS36351 IBM Cloud 0.49ms from Ashburn, US
181.1.55.123 AS7303 Telecom Argentina S.A. 17.17ms from Buenos Aires, AR
108.215.141.171 AS7018 AT&T Enterprises, LLC 7.59ms from Dallas, US
94.177.225.59 AS200185 Aruba S.p.A. 0.41ms from Frankfurt am Main, DE
2.223.26.219 AS5607 Sky UK Limited 1.63ms from London, GB
217.81.240.107 AS3320 Deutsche Telekom AG 4.67ms from Nuernberg, DE
112.248.57.123 AS4837 CHINA UNICOM China169 Backbone 6.81ms from Qingdao, CN
87.20.223.235 AS3269 Telecom Italia S.p.A. 2.52ms from Rome, IT
5.165.180.235 AS57378 JSC "ER-Telecom Holding" 17.28ms from Samara, RU

Traceroute

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

$
traceroute -a -n -q1 -f5 -m15 1.128.77.251
traceroute to 1.128.77.251 (1.128.77.251): 15 hops max, 52 byte packets
5 [AS4637] 202.84.178.53 17.251 ms
6 [AS4637] 202.84.249.9 160.139 ms
7 [AS4637] 202.84.141.26 286.713 ms
8 [AS1221] 203.50.13.89 294.998 ms
9 [AS1221] 203.50.6.102 287.382 ms
10 [AS1221] 203.50.6.119 285.162 ms
11 [AS1221] 203.50.13.156 296.046 ms
12 [AS1221] 203.50.11.241 296.051 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Luxembourg, LU
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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