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

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
101.103.64.1	AS1221 Telstra Limited	`0.56ms` from Sydney, AU
101.103.96.1	AS1221 Telstra Limited	`0.56ms` from Sydney, AU
101.103.128.1	AS1221 Telstra Limited	`0.60ms` from Sydney, AU
101.103.0.1	AS1221 Telstra Limited	`0.55ms` from Sydney, AU
101.103.32.3	AS1221 Telstra Limited	`0.55ms` from Sydney, AU
101.103.192.1	AS1221 Telstra Limited	`0.57ms` from Sydney, AU
101.103.224.3	AS1221 Telstra Limited	`0.56ms` from Sydney, AU
101.103.160.1	AS1221 Telstra Limited	`0.57ms` 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
202.181.153.224	AS207551 Wijnand Schouten	`0.96ms` from Amsterdam, NL
20.229.27.64	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
52.149.230.64	AS8075 Microsoft Corporation	`0.48ms` from Ashburn, US
77.74.92.192	AS42851 Elia Asset N.V	`2.46ms` from Brussels, BE
65.29.36.240	AS10796 Charter Communications Inc	`5.21ms` from Columbus, US
34.69.84.208	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
125.125.58.192	AS4134 CHINANET-BACKBONE	`7.76ms` from Hangzhou, CN
90.208.31.176	AS5607 Sky UK Limited	`1.14ms` from London, GB
161.33.96.0	AS31898 Oracle Corporation	`0.19ms` from Melbourne, AU
80.105.80.0	AS3269 Telecom Italia S.p.A.	`6.95ms` from Milan, IT
34.128.58.240	AS396982 Google LLC	`0.09ms` from Montreal, CA
64.202.191.48	AS398101 GoDaddy.com, LLC	`0.92ms` from Phoenix, US
27.212.2.64	AS4837 CHINA UNICOM China169 Backbone	`4.51ms` from Qingdao, CN
44.219.152.240	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
187.170.111.112	AS8151 UNINET	`3.94ms` from Santiago de Queretaro, MX
20.212.82.96	AS8075 Microsoft Corporation	`0.69ms` from Singapore, SG
68.189.203.80	AS20115 Charter Communications LLC	`4.34ms` from St. Louis, US
78.71.90.96	AS3301 Telia Company AB	`4.46ms` from Stockholm, SE
45.85.210.0	AS199980 IVENDO sp. z o.o.	`5.20ms` from Warsaw, PL
36.140.94.160	AS9808 China Mobile Communications Group Co., Ltd.	`9.75ms` from Zhengzhou, CN
141.20.42.112	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`1.01ms` from Berlin, DE
97.135.84.224	AS6167 Verizon Business	`14.47ms` from Chicago, US
14.245.241.0	AS45899 VNPT Corp	`0.79ms` from Da Nang, VN
24.65.23.128	AS6327 Shaw Communications	`4.91ms` from Edmonton, CA
107.5.231.112	AS7922 Comcast Cable Communications, LLC	`11.27ms` from Flint, US

Traceroute

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

traceroute -a -n -q1 -m9 101.103.222.49

traceroute to 101.103.222.49 (101.103.222.49): 9 hops max, 52 byte packets

1 [AS15169] 142.251.244.117 197.562 ms

2 [AS15169] 192.178.98.30 197.841 ms

3 *

4 [AS1221] 203.50.11.176 203.21 ms

5 [AS1221] 203.50.61.97 202.529 ms

6 [AS1221] 101.103.192.3 202.826 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On November 28th 2025

What are IP address ranges?

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