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Autonomous System

AS53813

ZSCALER, INC.

ZSCALER, INC. United States 🌐 zscaler.com
Announced IPs
135,424
CIDR prefixes
157
ASN
AS53813

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

69/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Enterprise allocation +4
  • Trust score 69 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About Zscaler

Zscaler, Inc. is an American cloud security company based in San Jose, California.

Founded
2008
Headquarters
San Jose
Industry
internet security
Official website ↗ Summary from Wikipedia, CC BY-SA 4.0 · Data from Wikidata

Network profile

Source: PeeringDB →
Network type Network Services
Geographic scope Regional
Traffic ratio Balanced
Peering policy Open
IRR record AS-ZSCALER-GLOBAL

Present at 30 internet exchanges: Equinix Sydney, JPIX TOKYO, Equinix Melbourne, Equinix Singapore, Extreme IX Chennai: Extreme IX LAN, Equinix Tokyo, DE-CIX Mumbai: DE-CIX Mumbai Peering LAN, HKIX: HKIX Peering LAN, Equinix Hong Kong, Extreme IX Mumbai: Extreme IX, …

Website ↗

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
164.137.160.0/19 8.2K
0.0%
ZSCALER, INC. CH — —
101.2.192.0/20 4.1K
0.0%
ZSCALER, INC. AU — —
101.2.224.0/20 4.1K
0.0%
ZSCALER, INC. AU New South Wales Sydney
167.103.16.0/20 4.1K
0.6%
ZSCALER, INC. AU — —
167.103.32.0/20 4.1K
0.6%
ZSCALER, INC. AU — —
167.103.64.0/20 4.1K
0.0%
ZSCALER, INC. AU — —
167.103.112.0/20 4.1K
0.0%
ZSCALER, INC. AU Victoria Melbourne
175.107.144.0/20 4.1K
0.0%
ZSCALER, INC. AU — —
101.2.216.0/21 2.0K
0.0%
ZSCALER, INC. AU Victoria Melbourne
101.2.240.0/21 2.0K
0.0%
ZSCALER, INC. AU — —
136.226.232.0/21 2.0K
0.0%
ZSCALER, INC. US — —
147.161.192.0/21 2.0K
0.0%
ZSCALER, INC. CH — —
147.161.208.0/21 2.0K
0.0%
ZSCALER, INC. CH — —
167.103.8.0/21 2.0K
0.0%
ZSCALER, INC. AU — —
167.103.40.0/21 2.0K
0.0%
ZSCALER, INC. JP Tokyo Tokyo
167.103.56.0/21 2.0K
0.0%
ZSCALER, INC. AU — —
167.103.72.0/21 2.0K
0.0%
ZSCALER, INC. IN Tamil Nadu Chennai
167.103.80.0/21 2.0K
0.0%
ZSCALER, INC. AU Victoria Melbourne
167.103.96.0/21 2.0K
0.0%
ZSCALER, INC. AU Western Australia Perth
167.103.136.0/21 2.0K
0.0%
ZSCALER, INC. AU New South Wales Sydney
167.103.160.0/21 2.0K
0.0%
ZSCALER, INC. AU — —
167.103.200.0/21 2.0K
0.0%
ZSCALER, INC. AU — —
167.103.208.0/21 2.0K
0.0%
ZSCALER, INC. AU — —
167.103.248.0/21 2.0K
0.0%
ZSCALER, INC. AU New South Wales Sydney
175.107.136.0/21 2.0K
0.0%
ZSCALER, INC. AU — —
175.107.160.0/21 2.0K
0.0%
ZSCALER, INC. AU — —
205.220.16.0/21 2.0K
0.0%
ZSCALER, INC. US — —
205.220.72.0/21 2.0K
0.0%
ZSCALER, INC. US — —
101.2.216.0/22 1.0K
0.0%
ZSCALER, INC. AU Victoria Melbourne
101.2.252.0/22 1.0K
0.0%
ZSCALER, INC. AU — —
136.226.228.0/22 1.0K
0.0%
ZSCALER, INC. US — —
136.226.240.0/22 1.0K
0.0%
ZSCALER, INC. US — —
136.226.252.0/22 1.0K
0.0%
ZSCALER, INC. US — —
137.31.136.0/22 1.0K
0.0%
ZSCALER, INC. CH — —
137.31.172.0/22 1.0K
0.0%
ZSCALER, INC. CH — —
147.161.212.0/22 1.0K
0.0%
ZSCALER, INC. AU New South Wales Sydney
147.161.216.0/22 1.0K
0.0%
ZSCALER, INC. CH — —
164.137.56.0/22 1.0K
0.0%
ZSCALER, INC. CH — —
165.225.104.0/22 1.0K
0.6%
ZSCALER, INC. US — —
165.225.112.0/22 1.0K
0.6%
ZSCALER, INC. US — —
165.225.120.0/22 1.0K
0.0%
ZSCALER, INC. US — —
165.225.228.0/22 1.0K
0.0%
ZSCALER, INC. US — —
165.225.232.0/22 1.0K
0.0%
ZSCALER, INC. US — —
167.103.4.0/22 1.0K
0.0%
ZSCALER, INC. AU — —
167.103.20.0/22 1.0K
0.0%
ZSCALER, INC. IN Telangana Hyderabad
167.103.24.0/22 1.0K
0.0%
ZSCALER, INC. IN Telangana Hyderabad
167.103.32.0/22 1.0K
0.0%
ZSCALER, INC. IN Maharashtra Mumbai
167.103.64.0/22 1.0K
0.0%
ZSCALER, INC. SG — —
167.103.80.0/22 1.0K
0.0%
ZSCALER, INC. AU Victoria Melbourne
167.103.84.0/22 1.0K
0.0%
ZSCALER, INC. IN Maharashtra Mumbai
167.103.100.0/22 1.0K
0.0%
ZSCALER, INC. AU Western Australia Perth
167.103.132.0/22 1.0K
0.0%
ZSCALER, INC. AU — —
167.103.136.0/22 1.0K
0.0%
ZSCALER, INC. IN Maharashtra Mumbai
167.103.144.0/22 1.0K
2.2%
ZSCALER, INC. AU New South Wales Sydney
167.103.156.0/22 1.0K
0.0%
ZSCALER, INC. AU — —
167.103.188.0/22 1.0K
0.0%
ZSCALER, INC. AU — —
167.103.196.0/22 1.0K
0.0%
ZSCALER, INC. AU — —
167.103.208.0/22 1.0K
0.0%
ZSCALER, INC. IN Tamil Nadu Chennai
167.103.228.0/22 1.0K
0.0%
ZSCALER, INC. AU — —
167.103.232.0/22 1.0K
0.0%
ZSCALER, INC. AU — —
175.107.128.0/22 1.0K
0.0%
ZSCALER, INC. AU — —
175.107.136.0/22 1.0K
0.0%
ZSCALER, INC. SG — —
175.107.140.0/22 1.0K
0.0%
ZSCALER, INC. AU — —
175.107.184.0/22 1.0K
0.0%
ZSCALER, INC. AU New South Wales Sydney
209.55.204.0/22 1.0K
0.0%
ZSCALER, INC. US — —
101.2.202.0/23 512
0.0%
ZSCALER, INC. JP Tokyo Tokyo
101.2.204.0/23 512
0.0%
ZSCALER, INC. JP Tokyo Tokyo
101.2.208.0/23 512
0.0%
ZSCALER, INC. AU — —
101.2.214.0/23 512
0.0%
ZSCALER, INC. AU Victoria Melbourne
101.2.220.0/23 512
0.0%
ZSCALER, INC. IN National Capital Territory of Delhi New Delhi
101.2.222.0/23 512
0.0%
ZSCALER, INC. AU New South Wales Sydney
101.2.242.0/23 512
0.0%
ZSCALER, INC. HK — —
101.2.244.0/23 512
0.0%
ZSCALER, INC. IN Tamil Nadu Chennai
101.2.248.0/23 512
0.0%
ZSCALER, INC. AU — —
129.127.226.0/23 512
0.0%
ZSCALER, INC. AU Victoria Melbourne
136.226.222.0/23 512
0.0%
ZSCALER, INC. US — —
136.226.224.0/23 512
0.0%
ZSCALER, INC. US — —
136.226.228.0/23 512
0.0%
ZSCALER, INC. HK — —
136.226.230.0/23 512
0.0%
ZSCALER, INC. IN National Capital Territory of Delhi New Delhi
136.226.232.0/23 512
0.0%
ZSCALER, INC. IN Maharashtra Mumbai
136.226.234.0/23 512
0.0%
ZSCALER, INC. SG — —
136.226.236.0/23 512
0.0%
ZSCALER, INC. SG — —
136.226.238.0/23 512
0.0%
ZSCALER, INC. JP Tokyo Tokyo
136.226.240.0/23 512
0.0%
ZSCALER, INC. TW Taipei City Taipei
136.226.242.0/23 512
0.0%
ZSCALER, INC. IN Tamil Nadu Chennai
136.226.244.0/23 512
0.0%
ZSCALER, INC. US — —
136.226.250.0/23 512
0.0%
ZSCALER, INC. US — —
137.31.18.0/23 512
0.0%
ZSCALER, INC. CH — —
137.31.92.0/23 512
0.0%
ZSCALER, INC. CH — —
137.31.172.0/23 512
0.0%
ZSCALER, INC. IN Maharashtra Mumbai
137.31.174.0/23 512
0.0%
ZSCALER, INC. CH — —
137.83.144.0/23 512
1.2%
ZSCALER, INC. US — —
137.83.150.0/23 512
1.2%
ZSCALER, INC. US — —
137.83.184.0/23 512
1.0%
ZSCALER, INC. US — —
137.83.188.0/23 512
0.6%
ZSCALER, INC. US — —
147.161.200.0/23 512
0.0%
ZSCALER, INC. CH — —
147.161.204.0/23 512
3.9%
ZSCALER, INC. CH — —
147.161.208.0/23 512
0.0%
ZSCALER, INC. AU New South Wales Sydney
147.161.210.0/23 512
0.0%
ZSCALER, INC. JP Tokyo Tokyo
147.161.216.0/23 512
0.0%
ZSCALER, INC. NZ Auckland Auckland

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS53813 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
137.31.156.0/24 204,375 2026-09-10 11:50:33
209.55.150.0/24 145,792 2026-09-10 12:41:47
101.2.244.0/23 138,793 2026-09-10 12:41:47
209.55.204.0/24 134,447 2026-09-10 12:41:47
209.55.205.0/24 127,801 2026-09-10 12:41:47
167.103.70.0/23 125,930 2026-09-10 12:41:47
136.226.254.0/24 116,061 2026-09-10 12:41:47
167.103.210.0/23 115,834 2026-09-10 12:41:47
167.103.206.0/23 115,457 2026-09-10 12:41:47
167.103.204.0/23 115,405 2026-09-10 12:41:47
167.103.76.0/23 115,155 2026-09-10 12:41:47
167.103.208.0/23 115,067 2026-09-10 12:41:47
167.103.78.0/23 115,008 2026-09-10 12:41:47
167.103.72.0/23 114,877 2026-09-10 12:41:47
167.103.74.0/23 114,835 2026-09-10 12:41:47
165.225.120.0/24 104,481 2026-09-10 12:41:47
101.2.248.0/23 102,502 2026-09-10 12:41:48
101.2.198.0/24 101,118 2026-09-10 12:41:47
101.2.197.0/24 98,668 2026-09-10 12:41:47
209.55.219.0/24 97,990 2026-09-10 12:41:47
209.55.213.0/24 97,801 2026-09-10 12:41:47
209.55.129.0/24 96,417 2026-09-10 12:41:47
101.2.208.0/24 95,693 2026-09-10 12:18:35
101.2.240.0/24 95,660 2026-09-10 12:17:43
209.55.151.0/24 95,634 2026-09-10 12:41:47
168.183.186.0/24 93,886 2026-09-10 12:41:47
167.103.228.0/23 93,162 2026-09-10 12:41:47
101.2.207.0/24 93,019 2026-09-10 12:41:47
101.2.220.0/23 92,835 2026-09-10 12:34:06
101.2.215.0/24 92,793 2026-09-10 12:34:35
167.103.186.0/23 92,085 2026-09-10 12:41:47
137.83.144.0/24 91,999 2026-09-10 12:27:41
120.29.239.0/24 90,962 2026-09-10 12:41:47
167.103.118.0/23 90,942 2026-09-10 12:41:48
167.103.85.0/24 90,773 2026-09-10 12:41:47
167.103.84.0/24 90,759 2026-09-10 12:41:47
209.55.137.0/24 90,445 2026-09-10 12:41:47
209.55.202.0/24 89,914 2026-09-10 12:41:47
167.103.192.0/23 89,914 2026-09-10 12:41:47
167.103.190.0/23 89,843 2026-09-10 12:41:47
167.103.2.0/23 89,349 2026-09-10 12:41:47
149.117.230.0/24 89,130 2026-09-10 12:41:47
165.225.120.0/23 89,086 2026-09-10 12:41:47
101.2.195.0/24 88,536 2026-09-10 12:41:47
167.103.32.0/23 88,345 2026-09-10 12:41:47
167.103.188.0/23 88,110 2026-09-10 12:41:48
205.220.24.0/23 88,010 2026-09-10 12:41:47
170.85.249.0/24 87,832 2026-09-10 12:41:47
136.226.252.0/23 87,566 2026-09-10 12:41:47
167.103.120.0/23 87,545 2026-09-10 12:41:47

Showing top 50 of 356 announced prefixes by sample volume.

Frequently Asked Questions

What is AS53813?

AS53813 is an Autonomous System Number assigned to ZSCALER, INC.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS53813 announce?

AS53813 announces 135.4K IPv4 addresses distributed across 157 routed CIDR prefixes. The network is registered in United States.

Who operates AS53813?

AS53813 is operated by ZSCALER, INC.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS53813 registered in?

AS53813 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-10 12:39:05 UTC
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