AS53813 ZSCALER, INC.

ZSCALER-INC - ZSCALER, INC. · registered in the United States

IPv4 addresses141,568170 prefixes · 0.005% of announced IPv4

Rank in United States#433largest network in US by IPv4 space, of 18,338 · 0.01% of US

Rank worldwide#1,398of 79,396 networks with IPv4

IPv66,152 x /4817 prefixes

CountryUnited States18,679 ASNs registered there

Open AS53813 in ASN lookup Look up an IP in this network (64.62.169.1) All networks in United States

IPv4 prefixes

All 170 prefixes, in address order.

64.62.169.0/24
101.2.192.0/20
101.2.208.0/23
101.2.214.0/23
101.2.216.0/24
101.2.217.0/24
101.2.218.0/23
101.2.220.0/22
101.2.224.0/20
101.2.240.0/21
101.2.248.0/23
101.2.250.0/24
101.2.252.0/22
120.29.239.0/24
129.127.226.0/23
136.226.89.0/24
136.226.222.0/23
136.226.224.0/23
136.226.228.0/22
136.226.232.0/21
136.226.240.0/22
136.226.244.0/23
136.226.250.0/23
136.226.252.0/22
137.31.17.0/24
137.31.18.0/23
137.31.44.0/24
137.31.50.0/24
137.31.63.0/24
137.31.92.0/23
137.31.118.0/24
137.31.132.0/24
137.31.136.0/22
137.31.152.0/23
137.31.156.0/24
137.31.164.0/24
137.31.172.0/22
137.31.209.0/24
137.31.216.0/24
137.83.137.0/24
137.83.144.0/23
137.83.147.0/24
137.83.149.0/24
137.83.150.0/23
137.83.152.0/24
137.83.160.0/24
137.83.178.0/24
137.83.184.0/23
137.83.188.0/23
147.161.192.0/21
147.161.200.0/23
147.161.204.0/23
147.161.208.0/21
147.161.216.0/22
147.161.220.0/23
148.107.228.0/24
149.24.95.0/24
149.117.230.0/23
153.69.24.0/24
153.69.26.0/24
153.69.28.0/24
153.69.30.0/24
159.254.98.0/24
159.254.103.0/24
159.254.204.0/24
161.151.234.0/23
161.151.240.0/23
164.137.56.0/22
164.137.60.0/24
164.137.69.0/24
164.137.109.0/24
164.137.159.0/24
164.137.160.0/19
164.137.192.0/24
165.225.96.0/23
165.225.102.0/24
165.225.104.0/22
165.225.110.0/23
165.225.112.0/23
165.225.114.0/24
165.225.115.0/24
165.225.116.0/23
165.225.118.0/24
165.225.120.0/22
165.225.124.0/23
165.225.226.0/23
165.225.228.0/24
165.225.229.0/24
165.225.230.0/23
165.225.232.0/22
167.103.2.0/23
167.103.4.0/22
167.103.8.0/21
167.103.16.0/20
167.103.32.0/20
167.103.48.0/23
167.103.54.0/23
167.103.56.0/21
167.103.64.0/20
167.103.80.0/21
167.103.88.0/23
167.103.96.0/21
167.103.110.0/23
167.103.112.0/20
167.103.128.0/23
167.103.132.0/22
167.103.136.0/21
167.103.144.0/22
167.103.154.0/23
167.103.156.0/22
167.103.160.0/21
167.103.186.0/23
167.103.188.0/22
167.103.192.0/23
167.103.196.0/22
167.103.200.0/21
167.103.208.0/21
167.103.216.0/23
167.103.228.0/22
167.103.232.0/22
167.103.247.0/24
167.103.248.0/21
168.183.183.0/24
168.183.184.0/23
168.183.186.0/24
168.183.191.0/24
168.183.192.0/23
170.85.249.0/24
170.85.250.0/24
175.107.128.0/22
175.107.132.0/23
175.107.134.0/24
175.107.136.0/21
175.107.144.0/20
175.107.160.0/21
175.107.170.0/23
175.107.172.0/22
175.107.176.0/22
175.107.180.0/23
175.107.184.0/22
205.220.16.0/21
205.220.24.0/23
205.220.69.0/24
205.220.70.0/23
205.220.72.0/21
205.220.80.0/23
205.220.83.0/24
205.220.90.0/23
205.220.92.0/24
205.220.98.0/24
209.55.129.0/24
209.55.130.0/24
209.55.133.0/24
209.55.134.0/24
209.55.136.0/23
209.55.140.0/24
209.55.150.0/23
209.55.157.0/24
209.55.166.0/23
209.55.169.0/24
209.55.170.0/24
209.55.177.0/24
209.55.182.0/24
209.55.184.0/24
209.55.202.0/23
209.55.204.0/22
209.55.208.0/24
209.55.211.0/24
209.55.212.0/23
209.55.219.0/24

IPv6 prefixes

All 17 prefixes.

2400:7aa0:1200::/39
2400:7aa0:1400::/38
2400:7aa0:1800::/37
2400:7aa0:2200::/39
2400:7aa0:2400::/39
2400:7aa0:2600::/40
2400:7aa0:2800::/39
2400:7aa0:2b00::/40
2400:7aa0:2c00::/40
2400:7aa0:2d00::/48
2400:7aa0:2e00::/40
2605:4300:5::/48
2a03:eec0:3211::/48
2a03:eec0:3216::/48
2a03:eec0:3221::/48
2a03:eec0:3222::/47
2a03:eec0:3224::/48

Other ASNs named ZSCALER, INC.

2 other networks use the same organisation name; together with AS53813 they announce 630,016 IPv4 addresses.

ASNNameIPv4 addresses

AS22616ZSCALER-SJC1 - ZSCALER, INC. US487,936

AS53444ZSCALER-SJC - ZSCALER, INC. US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS3734#430 SCCO - Santa Clara County Office of Education142,342

AS3456#431 TWC-3456-IT - Charter Communications Inc142,336

AS62#432 CONE - CyrusOne LLC142,080

AS2920#434 LACOE - Los Angeles County Office of Education141,306

AS293#435 ESNET - ESnet140,288

AS675#436 MSUS-AS - Minnesota State Colleges and Universities139,264

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources