1. All IP Ranges
  2. 101.0.0.0/8
  3. 101.2.0.0/16
  4. AS53813  | 101.2.204.0/23

101.2.204.0/23

AS53813  ·  ZSCALER, INC.

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Summary

Country Japan
Domain zscaler.com
ASN AS53813
Parent Range 101.2.192.0/18
Registry APNIC
ID ZSCALER-TOKYO

WHOIS Details

inetnum:        101.2.204.0 - 101.2.205.255
netname:        ZSCALER-TOKYO
descr:          Zscaler Tokyo
country:        JP
mnt-by:         MAINT-ZSCALER-AU
admin-c:        ZAPL2-AP
tech-c:         ZAPL2-AP
abuse-c:        ZAPL2-AP
geofeed:        https://config.zscaler.com/downloads/geofeed.csv
status:         ASSIGNED NON-PORTABLE
mnt-irt:        IRT-ZSCALER-AU
last-modified:  2025-11-05T22:14:42Z
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 2025-12-17
mnt-by:         MAINT-ZSCALER-AU
last-modified:  2025-12-17T16:58:43Z
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

Overlapping Ranges

BGP prefixes that contain 101.2.204.0/23

Range ASN Company Num of IPs
101.2.192.0/18 AS22616 Zscaler Australia Pty Ltd 16,384

Nearby Ranges

BGP prefixes that overlap with 101.2.0.0/16

Range ASN Company Num of IPs
101.2.192.0/18 AS22616 Zscaler Australia Pty Ltd 16,384
101.2.128.0/19 AS18260 EHIME CATV CO.,LTD. 8,192
101.2.176.0/20 AS18001 Dialog Axiata Plc 4,096
101.2.160.0/21 AS38592 Chittagong Online Limited. 2,048
101.2.172.0/22 AS58519 CHINANET FUJIAN PROVINCE NETWORK 1,024
101.2.226.0/23 AS53813 Zscaler Sydney 512
101.2.228.0/23 AS53813 Zscaler Sydney 512
101.2.230.0/23 AS53813 Zscaler Sydney 512
101.2.232.0/23 AS53813 Zscaler Sydney 512
101.2.234.0/23 AS53813 Zscaler Sydney 512
101.2.216.0/23 AS53813 Zscaler Melbourne 512
101.2.238.0/23 AS53813 Zscaler Sydney 512
101.2.242.0/23 AS53813 Zscaler Hong Kong 512
101.2.244.0/23 AS53813 Zscaler Chennai 512
101.2.202.0/23 AS53813 Zscaler Tokyo 512
101.2.236.0/23 AS53813 Zscaler Sydney 512
101.2.218.0/23 AS53813 Zscaler Melbourne 512
101.2.220.0/23 AS53813 Zscaler New Delhi 512
101.2.222.0/23 AS53813 Zscaler Sydney 512
101.2.224.0/23 AS53813 Zscaler Sydney 512
101.2.169.0/24 AS55707 Terra Networks Pty Ltd VPS Customers 256
101.2.215.0/24 AS53813 Zscaler New Delhi 256
101.2.192.0/24 AS53813 Zscaler Singapore SIN4 256
101.2.193.0/24 AS53813 Zscaler Japan TYO4 256
101.2.194.0/24 AS53813 Zscaler Australia SYD3 256
101.2.195.0/24 AS53813 Zscaler India MAA2 256
101.2.196.0/24 AS53813 Zscaler Australia MEL2 256
101.2.197.0/24 AS53813 Zscaler India BOM6 256
101.2.198.0/24 AS53813 Zscaler India HYD1 256
101.2.199.0/24 AS53813 Zscaler Japan OSA1 256
101.2.200.0/24 AS53813 Zscaler Korea, Republic of SEL1 256
101.2.201.0/24 AS53813 Zscaler Taiwan, Province of China TPE2 256
101.2.206.0/24 AS53813 Zscaler Tokyo 256
101.2.207.0/24 AS53813 Zscaler Kolkata 256
101.2.208.0/24 AS53813 Zscaler New Delhi 256
101.2.209.0/24 AS53813 Zscaler Tokyo 256
101.2.214.0/24 AS53813 Zscaler Melbourne 256
101.2.240.0/24 AS53813 Zscaler New Delhi 256
101.2.241.0/24 AS53813 Zscaler Singapore 256
101.2.246.0/24 AS53813 Zscaler Tokyo 256
101.2.247.0/24 AS53813 Zscaler Sydney 256
101.2.168.0/24 AS55707 Terra Networks Pty Ltd 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
Read more

Pingable IPs

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

IP Address ASN Details
101.2.205.108 AS53813 ZSCALER, INC. 0.43ms from Tokyo, JP
101.2.204.1 AS53813 ZSCALER, INC. 0.17ms from Tokyo, JP

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
135.236.5.199 AS8075 Microsoft Corporation 0.24ms from Amsterdam, NL
214.79.2.55 AS5972 United States Department of Defense (DoD) 4.47ms from Ashburn, US
106.13.59.167 AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd. 5.22ms from Beijing, CN
150.223.20.87 AS58519 Cloud Computing Corporation 1.04ms from Hohhot, CN
177.70.185.23 AS262773 PROXXIMA TELECOMUNICACOES SA 4.19ms from Joao Pessoa, BR
136.158.62.199 AS17639 Converge ICT Solutions Inc. 2.87ms from Manila, PH
76.114.127.103 AS7922 Comcast Cable Communications, LLC 7.93ms from Murfreesboro, US
106.172.215.7 AS2516 KDDI CORPORATION 11.86ms from Osaka, JP
31.132.30.7 AS57294 Internet Expert s.r.o. 7.65ms from Prague, CZ
58.76.167.119 AS7562 HCN Dongjak 0.84ms from Seoul, KR
122.215.240.103 AS17506 ARTERIA Networks Corporation 0.93ms from Tokyo, JP
217.151.157.135 AS9022 TWL-Kom GmbH 1.94ms from Frankfurt am Main, DE
27.71.133.199 AS7552 Viettel Group 18.03ms from Ho Chi Minh City, VN
160.87.218.135 AS299 University of California, Irvine 5.43ms from Los Angeles, US
83.40.163.39 AS3352 TELEFONICA DE ESPANA S.A.U. 10.29ms from Madrid, ES
80.72.219.199 AS62382 LLC KDV Grupp 1.37ms from Novosibirsk, RU
107.20.114.119 AS14618 Amazon.com, Inc. 0.16ms from Reston, US
83.243.226.103 AS25400 Telia Norge AS 15.45ms from Sandefjord, NO
164.90.158.23 AS14061 DigitalOcean, LLC 0.23ms from Santa Clara, US
13.62.137.23 AS16509 Amazon.com, Inc. 0.11ms from Stockholm, SE
219.124.138.39 AS10010 TOKAI Communications Corporation 6.52ms from Tokyo, JP
126.120.150.199 AS17676 SoftBank Corp. 3.56ms from Tokyo, JP
106.178.202.119 AS2516 KDDI CORPORATION 3.44ms from Tokyo, JP
123.13.166.103 AS4837 CHINA UNICOM China169 Backbone 0.96ms from Zhengzhou, CN
20.50.199.71 AS8075 Microsoft Corporation 0.36ms 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 -f4 101.2.204.3
traceroute to 101.2.204.3 (101.2.204.3): 64 hops max, 52 byte packets
4 [] 101.203.89.114 271.052 ms
5 [AS53813] 101.2.204.3 0.213 ms
Measurement taken from IPinfo ProbeNet in Tokyo, JP
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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