101.103.0.0/16

AS1221 · Telstra Limited

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Summary

Country	Australia
Domain	telstra.net
ASN	AS1221
Registry	APNIC
ID	TELSTRAINTERNET50-AU

WHOIS Details

inetnum:        101.103.0.0 - 101.103.255.255
netname:        TELSTRAINTERNET50-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:          101.103.0.0/16
origin:         AS1221
descr:          Telstra Corporation 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2019-12-11T21:02:38Z
source:         APNIC

route:          101.103.0.0/16
origin:         AS19905
descr:          Telstra Corporation Limited 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2022-09-12T01:17:25Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 101.0.0.0/8

Range	ASN	Company	Num of IPs
101.160.0.0/11	AS1221	Telstra Limited	2,097,152
101.144.0.0/12	AS9394	China TieTong Telecommunications Corporation	1,048,576
101.16.0.0/12	AS4837	China Unicom Hebei province network	1,048,576
101.64.0.0/13	AS4837	UNICOM ZheJiang Province Network	524,288
101.224.0.0/13	AS4812	CHINANET SHANGHAI PROVINCE NETWORK	524,288
101.224.0.0/13	AS4809	CHINANET SHANGHAI PROVINCE NETWORK	524,288
101.224.0.0/13	AS4811	CHINANET SHANGHAI PROVINCE NETWORK	524,288
101.112.0.0/13	AS18291	VODAFONE AUSTRALIA PTY LIMITED	524,288
101.112.0.0/13	AS133612	VODAFONE AUSTRALIA PTY LIMITED	524,288
101.140.0.0/14	AS17511	OPTAGE Inc.	262,144
101.136.0.0/14	AS131591	Asia Pacific On-Line Service Inc.	262,144
101.136.0.0/14	AS17709	Asia Pacific On-Line Service Inc.	262,144
101.72.0.0/14	AS4837	China Unicom Hebei province network	262,144
101.4.0.0/14	AS4538	China Education and Research Network	262,144
101.204.0.0/14	AS4837	UNICOM Sichuan province network	262,144
101.76.0.0/15	AS4538	China Education and Research Network	131,072
101.42.0.0/15	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	131,072
101.34.0.0/15	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	131,072
101.248.0.0/15	AS4134	CHINANET XIZANG PROVINCE NETWORK	131,072
101.132.0.0/15	AS37963	Aliyun Computing Co., LTD	131,072
101.60.0.0/15	AS5607	Sky UK Limited	131,072
101.200.0.0/15	AS37963	Aliyun Computing Co., LTD	131,072
101.108.0.0/15	AS23969	TOT Public Company Limited	131,072
101.124.0.0/16	AS131486	Beijing Jingdong 360 Degree E-commerce Co., Ltd.	65,536
101.202.0.0/16	AS17878	DREAMMARK1	65,536
101.37.0.0/16	AS37963	Aliyun Computing Co., LTD	65,536
101.124.0.0/16	AS23724	Beijing Jingdong 360 Degree E-commerce Co., Ltd.	65,536
101.51.0.0/16	AS23969	TOT Public Company Limited	65,536
101.51.0.0/16	AS23974	TOT Public Company Limited	65,536
101.127.0.0/16	AS138345	StarHub Internet Pte Ltd	65,536
101.255.0.0/16	AS38511	PT Remala Abadi	65,536
101.39.0.0/16	AS4847	Beijing GreatWall Broadband Telecom Service Co.,Ltd.	65,536
101.111.0.0/16	AS9365	its communications Inc.	65,536
101.197.0.0/16	AS55992	Beijing Qihu Technology Company Limited	65,536
101.129.0.0/16	AS45075	China Central Television	65,536
101.40.0.0/16	AS4847	Beijing Teletron Telecom Engineering Co., Ltd.	65,536
101.127.0.0/16	AS4657	StarHub Internet Pte Ltd	65,536
101.98.0.0/16	AS9790	Two Degrees Mobile Limited	65,536
101.127.0.0/16	AS55430	StarHub Internet Pte Ltd	65,536
101.78.128.0/17	AS9381	HKBN Enterprise Solutions HK Limited	32,768
101.33.128.0/17	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	32,768
101.1.128.0/17	AS7522	Pikara(STNet, Incorporated)	32,768
101.33.128.0/17	AS132203	Tencent Cloud Computing (Beijing) Co., Ltd	32,768
101.128.128.0/17	AS2497	Internet Initiative Japan Inc.	32,768
101.102.128.0/17	AS17676	SoftBank Corp.	32,768
101.99.128.0/17	AS3605	Kuentos Communications, Inc.	32,768
101.100.0.0/17	AS17492	Vector Communications Ltd	32,768
101.36.128.0/17	AS23724	CNISP-Union Technology (Beijing) Co., Ltd	32,768
101.110.128.0/17	AS2914	NTT Ltd Japan Corporation	32,768

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

Read more

Pingable IPs

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

IP Address	ASN	Details
101.103.32.3	AS1221 Telstra Limited	`0.56ms` from Sydney, AU
101.103.0.1	AS1221 Telstra Limited	`0.57ms` from Sydney, AU
101.103.96.3	AS1221 Telstra Limited	`0.59ms` from Sydney, AU
101.103.128.1	AS1221 Telstra Limited	`0.58ms` from Sydney, AU
101.103.160.3	AS1221 Telstra Limited	`0.57ms` from Sydney, AU
101.103.64.1	AS1221 Telstra Limited	`0.55ms` from Sydney, AU
101.103.224.3	AS1221 Telstra Limited	`0.58ms` from Sydney, AU
101.103.192.1	AS1221 Telstra Limited	`0.54ms` 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
13.110.102.160	AS14340 Salesforce.com, Inc.	`0.64ms` from Ashburn, US
190.12.123.80	AS11014 CPS	`1.08ms` from Buenos Aires, AR
181.27.52.160	AS22927 Telefonica de Argentina	`1.69ms` from Buenos Aires, AR
81.173.143.208	AS8422 NetCologne Gesellschaft fur Telekommunikation mbH	`3.45ms` from Duesseldorf, DE
47.97.128.128	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.17ms` from Hangzhou, CN
154.208.180.208	AS9294 GNET INC.	`0.93ms` from Hong Kong, HK
103.176.201.0	AS152373 PT Anugerah Media Data Nusantara	`0.59ms` from Jakarta, ID
62.7.206.160	AS2856 British Telecommunications PLC	`0.84ms` from London, GB
66.115.63.16	AS13645 BroadbandONE, LLC	`1.52ms` from Miami, US
46.3.236.80	AS213541 WS Telecom Inc	`0.56ms` from Miami, US
58.183.146.48	AS18144 Enecom,Inc.	`7.13ms` from Osaka, JP
86.250.17.112	AS3215 Orange S.A.	`14.42ms` from Paris, FR
54.211.83.32	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
188.218.217.32	AS30722 Vodafone Italia S.p.A.	`14.94ms` from Rome, IT
63.197.15.0	AS7018 AT&T Enterprises, LLC	`1.59ms` from San Jose, US
187.146.83.144	AS8151 UNINET	`8.69ms` from Santiago de Queretaro, MX
1.177.242.0	AS9845 LG HelloVision Corp.	`7.97ms` from Seoul, KR
20.229.27.64	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL
20.8.197.0	AS8075 Microsoft Corporation	`0.22ms` from Amsterdam, NL
204.199.177.0	AS3549 Level 3 Parent, LLC	`0.51ms` from Caracas, VE
45.185.235.0	AS269395 C de Souza Leite me	`10.58ms` from Fortaleza, BR
62.246.116.96	AS12312 ecotel communication ag	`6.41ms` from Frankfurt am Main, DE
40.192.29.64	AS16509 Amazon.com, Inc.	`1.51ms` from Hyderabad, IN
108.46.215.16	AS701 Verizon Business	`2.51ms` from New York City, US
98.237.155.160	AS7922 Comcast Cable Communications, LLC	`12.90ms` from Seattle, US

Traceroute

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

traceroute -a -n -q1 -f4 -m15 101.103.227.170

traceroute to 101.103.227.170 (101.103.227.170): 15 hops max, 52 byte packets

4 [AS9002] 87.245.241.66 8.661 ms

5 [AS9002] 87.245.233.116 14.815 ms

6 *

7 *

8 [AS1221] 203.50.13.89 307.32 ms

9 *

10 [AS1221] 203.50.6.117 305.74 ms

11 [AS1221] 203.50.61.97 296.932 ms

12 [AS1221] 101.103.224.3 305.327 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Bologna, IT

On December 6th 2025

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