167.103.252.0/23

AS53813 · ZSCALER, INC.

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Summary

Country	Australia
Domain	zscaler.com
ASN	AS53813
Registry	APNIC
ID	ZSCALER-AU

WHOIS Details

inetnum:        167.103.0.0 - 167.103.255.255
netname:        ZSCALER-AU
descr:          Zscaler Australia Pty Ltd
country:        AU
org:            ORG-ZAPL2-AP
admin-c:        ZAPL2-AP
tech-c:         ZAPL2-AP
abuse-c:        AZ479-AP
mnt-by:         APNIC-HM
mnt-lower:      MAINT-ZSCALER-AU
mnt-routes:     MAINT-ZSCALER-AU
mnt-irt:        IRT-ZSCALER-AU
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:        --------------------------------------------------------
remarks:        -----BEGIN CERTIFICATE-----MIIDrTCCApWgAwIBAgIUffrfKoL94QVG61yO6GiPBvWCsfIwDQYJKoZIhvcNAQELBQAwZjELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAkNBMREwDwYDVQQHDAhTYW4gSm9zZTEPMA0GA1UECgwGWmluZnJh MRAwDgYDVQQLDAdac2NhbGVyMRQwEgYDVQQDDAt6c2NhbGVyLmNvbTAeFw0yNDA2MDQyMjEzMDVaFw0zNDA2MDIyMjEzMDVaMGYxCzAJBgNVBAYTAlVTMQswCQYDVQQIDAJDQTERMA8GA1UEBwwIU2FuIEpvc2UxDzANBgNVBAoMBlppbmZ yYTEQMA4GA1UECwwHWnNjYWxlcjEUMBIGA1UEAwwLenNjYWxlci5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDu1sp/hVQCG5Jz9s8J7GWWJ1Zj69CiddN/2axpTbvLAqRNhlUi5GQTZgcEiHqgop7sW7CRyABrdAEsT+ MnP3QKPuLA8we2upndB1K0wKsgYsdp/AUsPxNsZJ2leSWtpNkXQ2iPtc+h15QLvJ6eGmk/qmfLoo0F+olYdW003dukRDSTfBfbxTmXQS2UW/dkdo8ONLEAXqR7yEag9lvCgMiGwYapbDy6H3cthOaFsZHh1lvyHNLIHzU1e6hX0M3+T6WfN 4pYpB+GhbAu9YdddvVhmCptpenus+IRAbjZM4J9JsqUqkOCnrue3/KbWVxiPLRxpQ4d4Y6N53nz2xaE0v9xAgMBAAGjUzBRMB0GA1UdDgQWBBTAxWS2VQWDeIG3gcIZqdAEM3wGuTAfBgNVHSMEGDAWgBTAxWS2VQWDeIG3gcIZqdAEM3wG uTAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQBOso1nZwdsQj7Npm1ZidZY+EsWxAVHr20ikLN3pIY5g6cd6lqAOSOrQ8KPbXv70H8FZ318JIHVUaUVwNbXuKWVxMroHyjCQ+fBQgpQ5tGEb9HAlGcMgKqYU5hluKgzxLm kxOxZ8Wz4GgXb9I188fQZocStYmW2spXj7RaX4McHNd8ViLdlwo0uLppPoqTVucrOspVDQHhoZf5HLE5IwRzP037ArcJmqvLc30us1KISFkPh55poo1KZSn/LIb8wP8N8TofcPhID0uXmahzy9DOrEajLwT2HCXogO/ldYAyHpSd3WMDX29 GzwBWVjBfdDjW25+H03tOYrd4VrCkUSrCb-----END CERTIFICATE-----
last-modified:  2025-04-14T18:41:18Z
source:         APNIC

irt:            IRT-ZSCALER-AU
address:        Level 35, One International Towers, 100 Barangaroo Ave, Sydney NSW 2000
e-mail:         poc-abuse@zscaler.com
abuse-mailbox:  poc-abuse@zscaler.com
admin-c:        ZAPL2-AP
tech-c:         ZAPL2-AP
auth:           # Filtered
remarks:        poc-abuse@zscaler.com was validated on 2025-05-28
mnt-by:         MAINT-ZSCALER-AU
last-modified:  2025-10-09T01:53:18Z
source:         APNIC

organisation:   ORG-ZAPL2-AP
org-name:       Zscaler Australia PTY LTD
org-type:       LIR
country:        AU
address:        Level 35, One International Towers, 100 Barangaroo Ave
phone:          +1-408-701-0534
e-mail:         poc-noc@zscaler.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:52Z
source:         APNIC

role:           ABUSE ZSCALERAU
country:        ZZ
address:        Level 35, One International Towers, 100 Barangaroo Ave, Sydney NSW 2000
phone:          +000000000
e-mail:         poc-abuse@zscaler.com
admin-c:        ZAPL2-AP
tech-c:         ZAPL2-AP
nic-hdl:        AZ479-AP
remarks:        Generated from irt object IRT-ZSCALER-AU
remarks:        poc-abuse@zscaler.com was validated on 2025-05-28
abuse-mailbox:  poc-abuse@zscaler.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-28T15:19:36Z
source:         APNIC

role:           Zscaler Australia PTY LTD administrator
address:        Level 35, One International Towers, 100 Barangaroo Ave, Sydney NSW 2000
country:        AU
phone:          +1-408-701-0534
e-mail:         poc-abuse@zscaler.com
admin-c:        ZAPL2-AP
tech-c:         ZAPL2-AP
nic-hdl:        ZAPL2-AP
mnt-by:         MAINT-ZSCALER-AU
last-modified:  2022-05-10T16:31:18Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 167.103.0.0/16

Range	ASN	Company	Num of IPs
167.103.118.0/23	AS53813	Zscaler Softech India Private Limited - Mumbai	512
167.103.96.0/23	AS53813	Zscaler Seoul	512
167.103.149.0/24	AS22616	Zscaler Lima	256
167.103.150.0/24	AS22616	Zscaler San Jose	256
167.103.151.0/24	AS22616	Zscaler Nassau	256
167.103.152.0/24	AS22616	Zscaler Istanbul	256
167.103.153.0/24	AS22616	Zscaler Kuwait City	256
167.103.36.0/24	AS53813	Zscaler Singapore	256
167.103.37.0/24	AS53813	Zscaler Singapore	256
167.103.38.0/24	AS53813	Zscaler Sydney	256
167.103.39.0/24	AS53813	Zscaler Sydney	256
167.103.40.0/24	AS53813	Zscaler Tokyo	256
167.103.41.0/24	AS53813	Zscaler Tokyo	256
167.103.48.0/24	AS53813	Zscaler Sydney	256
167.103.49.0/24	AS53813	Zscaler Softech India Private Limited - Delhi	256
167.103.148.0/24	AS22616	Zscaler Cairo	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

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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
62.74.88.231	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`2.87ms` from Athens, GR
94.66.23.247	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`13.35ms` from Athens, GR
105.157.128.215	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`7.76ms` from Casablanca, MA
90.132.232.231	AS1257 Tele2 Sverige AB	`3.91ms` from Falkenberg, SE
90.53.222.135	AS3215 Orange S.A.	`9.99ms` from Frankfurt am Main, DE
202.129.226.183	AS38781 PT. Mitra Abdi Solusi	`1.13ms` from Jakarta, ID
222.174.57.7	AS4134 CHINANET-BACKBONE	`7.21ms` from Jinan, CN
41.169.149.231	AS36937 Liquid Telecommunications South Africa (Pty) Ltd	`1.68ms` from Johannesburg, ZA
94.13.37.71	AS5607 Sky UK Limited	`6.83ms` from London, GB
31.111.123.135	AS6871 Plusnet	`2.92ms` from London, GB
82.153.160.135	AS8851 GCI Network Solutions Limited	`7.52ms` from London, GB
197.218.200.215	AS37342 Movitel, SA	`0.97ms` from Maputo, MZ
75.220.237.23	AS6167 Verizon Business	`10.40ms` from Miami, US
206.176.113.55	AS14263 South Dakota State Government	`15.11ms` from Minneapolis, US
185.193.142.55	AS42661 DM LLC	`0.75ms` from Moscow, RU
13.203.8.151	AS16509 Amazon.com, Inc.	`0.15ms` from Mumbai, IN
90.120.140.215	AS3215 Orange S.A.	`9.47ms` from Paris, FR
40.112.199.199	AS8075 Microsoft Corporation	`0.60ms` from San Jose, US
59.9.172.215	AS4766 Korea Telecom	`1.30ms` from Seoul, KR
104.215.191.215	AS8075 Microsoft Corporation	`0.56ms` from Singapore, SG
223.92.5.55	AS9808 China Mobile Communications Group Co., Ltd.	`6.57ms` from Suzhou, CN
122.151.130.247	AS9443 Vocus Retail	`1.56ms` from Sydney, AU
202.238.135.55	AS2497 Internet Initiative Japan Inc.	`1.41ms` from Tokyo, JP
114.182.76.183	AS4713 NTT Communications Corporation	`10.70ms` from Tokyo, JP
212.129.62.7	AS12876 SCALEWAY S.A.S.	`0.23ms` from Amsterdam, NL

Traceroute

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

traceroute -a -n -q1 -f5 167.103.253.121

traceroute to 167.103.253.121 (167.103.253.121): 64 hops max, 52 byte packets

5 [AS215859] 5.223.0.85 0.308 ms

6 [AS215859] 5.223.0.69 0.554 ms

7 [] 27.111.228.74 0.857 ms

8 *

9 *

10 *

11 *

12 [AS4826] 114.31.192.99 92.016 ms

13 [AS4826] 49.255.6.66 92.173 ms

14 [AS53813] 167.103.253.121 91.89 ms

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On October 17th 2025

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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