Autonomous System

AS22616

ZSCALER, INC.

ZSCALER, INC. United States 🌐 zscaler.com

Announced IPs

488,704

CIDR prefixes

291

ASN

AS22616

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 v1.3.0 — 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-AMER

Present at 23 internet exchanges: Equinix Dallas, DE-CIX New York: DE-CIX New York Peering LAN, Any2West, Digital Realty Atlanta, Equinix Chicago, Any2Denver, TorIX, Equinix Miami, Equinix Ashburn, Equinix New York, …

Website ↗

AS22616 — global IP footprint

Cities where AS22616 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDR	IPs	PTR Density	Organization	Country	State	City
220.42.0.0/15	131.1K	0.0%	ZSCALER, INC.	CH	Virginia	Reston
167.106.0.0/16	65.5K	0.0%	ZSCALER, INC.	US	—	—
220.43.0.0/16	65.5K	0.0%	ZSCALER, INC.	US	—	—
220.42.128.0/17	32.8K	0.0%	ZSCALER, INC.	US	—	—
170.85.128.0/18	16.4K	0.0%	ZSCALER, INC.	US	Illinois	Chicago
198.14.64.0/18	16.4K	6.1%	ZSCALER, INC.	US	New York	New York
220.42.64.0/18	16.4K	0.0%	ZSCALER, INC.	US	—	—
136.226.96.0/19	8.2K	0.0%	ZSCALER, INC.	US	Illinois	Chicago
137.31.224.0/19	8.2K	0.0%	ZSCALER, INC.	US	—	—
170.85.160.0/19	8.2K	0.0%	ZSCALER, INC.	US	Illinois	Chicago
220.42.32.0/19	8.2K	0.0%	ZSCALER, INC.	US	—	—
104.129.192.0/20	4.1K	0.1%	ZSCALER, INC.	US	California	San Jose
136.226.0.0/20	4.1K	1.0%	ZSCALER, INC.	US	Illinois	Chicago
136.226.48.0/20	4.1K	0.0%	ZSCALER, INC.	US	Washington	Seattle
136.226.64.0/20	4.1K	0.0%	ZSCALER, INC.	US	—	—
136.226.96.0/20	4.1K	0.0%	ZSCALER, INC.	US	Illinois	Chicago
136.226.128.0/20	4.1K	1.1%	ZSCALER, INC.	US	Colorado	Denver
137.31.64.0/20	4.1K	0.0%	ZSCALER, INC.	CH	—	—
137.31.224.0/20	4.1K	0.0%	ZSCALER, INC.	CH	—	—
159.254.160.0/20	4.1K	0.0%	ZSCALER, INC.	CH	—	—
164.137.16.0/20	4.1K	0.0%	ZSCALER, INC.	CH	—	—
164.137.32.0/20	4.1K	0.0%	ZSCALER, INC.	CH	—	—
165.225.208.0/20	4.1K	0.1%	ZSCALER, INC.	US	—	—
170.85.96.0/20	4.1K	0.0%	ZSCALER, INC.	US	Texas	Houston
170.85.128.0/20	4.1K	0.0%	ZSCALER, INC.	US	Georgia	Atlanta
205.220.0.0/20	4.1K	0.0%	ZSCALER, INC.	US	—	—
205.220.32.0/20	4.1K	0.0%	ZSCALER, INC.	US	Florida	Miami
205.220.112.0/20	4.1K	0.0%	ZSCALER, INC.	US	—	—
220.42.0.0/20	4.1K	0.0%	ZSCALER, INC.	US	Virginia	Reston
136.226.8.0/21	2.0K	1.0%	ZSCALER, INC.	US	California	San Jose
136.226.24.0/21	2.0K	2.0%	ZSCALER, INC.	US	California	San Jose
136.226.32.0/21	2.0K	0.9%	ZSCALER, INC.	US	Illinois	Chicago
136.226.48.0/21	2.0K	0.0%	ZSCALER, INC.	US	Virginia	Reston
136.226.64.0/21	2.0K	0.0%	ZSCALER, INC.	US	Massachusetts	Boston
136.226.80.0/21	2.0K	0.0%	ZSCALER, INC.	US	Illinois	Chicago
136.226.120.0/21	2.0K	0.0%	ZSCALER, INC.	US	Virginia	Reston
136.226.144.0/21	2.0K	0.0%	ZSCALER, INC.	US	California	San Jose
136.226.200.0/21	2.0K	0.0%	ZSCALER, INC.	US	—	—
137.31.24.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.64.0/21	2.0K	0.0%	ZSCALER, INC.	JP	Tokyo	Tokyo
137.31.80.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.104.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.120.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.144.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.176.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.200.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.240.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
137.83.168.0/21	2.0K	0.6%	ZSCALER, INC.	US	California	San Jose
159.254.104.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
159.254.112.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
159.254.136.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
159.254.152.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
159.254.240.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
164.137.8.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
164.137.48.0/21	2.0K	0.0%	ZSCALER, INC.	CH	—	—
165.225.0.0/21	2.0K	0.7%	ZSCALER, INC.	US	Illinois	Chicago
165.225.32.0/21	2.0K	0.0%	ZSCALER, INC.	US	New York	New York
165.225.56.0/21	2.0K	0.1%	ZSCALER, INC.	US	Illinois	Chicago
170.85.8.0/21	2.0K	0.0%	ZSCALER, INC.	US	Illinois	Chicago
170.85.16.0/21	2.0K	0.0%	ZSCALER, INC.	US	—	—
170.85.88.0/21	2.0K	0.0%	ZSCALER, INC.	US	Virginia	Reston
170.85.112.0/21	2.0K	0.0%	ZSCALER, INC.	US	Virginia	Reston
170.85.152.0/21	2.0K	0.0%	ZSCALER, INC.	US	Virginia	Reston
170.85.200.0/21	2.0K	0.0%	ZSCALER, INC.	US	California	Los Angeles
170.85.216.0/21	2.0K	0.0%	ZSCALER, INC.	US	—	—
170.85.224.0/21	2.0K	0.0%	ZSCALER, INC.	US	California	Los Angeles
170.85.240.0/21	2.0K	0.0%	ZSCALER, INC.	US	Virginia	Reston
198.14.96.0/21	2.0K	12.1%	ZSCALER, INC.	US	New York	New York
198.14.120.0/21	2.0K	0.0%	ZSCALER, INC.	US	Virginia	Reston
205.220.0.0/21	2.0K	0.0%	ZSCALER, INC.	CL	Santiago Metropolitan	Santiago
205.220.48.0/21	2.0K	0.0%	ZSCALER, INC.	US	Massachusetts	Boston
205.220.104.0/21	2.0K	0.0%	ZSCALER, INC.	US	—	—
129.176.208.0/22	1.0K	0.0%	ZSCALER, INC.	US	Colorado	Denver
136.226.4.0/22	1.0K	2.0%	ZSCALER, INC.	US	California	San Jose
136.226.16.0/22	1.0K	2.0%	ZSCALER, INC.	US	Virginia	Reston
136.226.44.0/22	1.0K	0.0%	ZSCALER, INC.	US	California	San Jose
136.226.56.0/22	1.0K	0.0%	ZSCALER, INC.	US	Washington	Seattle
136.226.72.0/22	1.0K	0.0%	ZSCALER, INC.	US	Massachusetts	Boston
136.226.92.0/22	1.0K	2.0%	ZSCALER, INC.	US	Virginia	Reston
136.226.116.0/22	1.0K	0.0%	ZSCALER, INC.	US	California	San Jose
136.226.152.0/22	1.0K	2.0%	ZSCALER, INC.	US	Virginia	Reston
136.226.208.0/22	1.0K	0.0%	ZSCALER, INC.	US	—	—
137.31.4.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.8.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.24.0/22	1.0K	0.0%	ZSCALER, INC.	CA	British Columbia	Vancouver
137.31.28.0/22	1.0K	0.0%	ZSCALER, INC.	NL	North Holland	Amsterdam
137.31.76.0/22	1.0K	0.0%	ZSCALER, INC.	US	—	—
137.31.100.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.148.0/22	1.0K	0.0%	ZSCALER, INC.	US	—	—
137.31.160.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.184.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.212.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.220.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
137.31.248.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
137.83.168.0/22	1.0K	0.6%	ZSCALER, INC.	US	California	San Jose
159.254.64.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
159.254.92.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
159.254.184.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—
159.254.244.0/22	1.0K	0.0%	ZSCALER, INC.	AE	Abu Dhabi	Abu Dhabi
159.254.248.0/22	1.0K	0.0%	ZSCALER, INC.	CH	—	—

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS22616 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

Prefix	Announcement samples	Last seen
137.31.119.0/24	73,332,040	2026-11-10 21:09:59
198.14.75.0/24	116,508	2026-11-10 21:04:47
205.220.94.0/23	113,904	2026-11-10 19:42:01
198.14.78.0/24	113,546	2026-11-10 21:04:47
205.220.114.0/23	112,343	2026-11-10 21:04:47
205.220.108.0/23	112,269	2026-11-10 21:04:47
205.220.116.0/23	112,183	2026-11-10 19:42:01
205.220.110.0/23	112,063	2026-11-10 21:04:47
205.220.112.0/23	112,037	2026-11-10 21:04:47
205.220.100.0/23	112,016	2026-11-10 21:04:47
205.220.104.0/23	112,011	2026-11-10 21:04:47
205.220.106.0/23	111,850	2026-11-10 21:04:47
159.254.221.0/24	62,278	2026-11-10 19:41:57
170.85.246.0/24	62,071	2026-11-10 19:41:57
170.85.247.0/24	62,038	2026-11-10 19:41:57
205.220.8.0/23	59,943	2026-11-10 19:41:57
205.220.4.0/23	59,776	2026-11-10 19:41:57
205.220.6.0/23	59,759	2026-11-10 19:41:57
205.220.2.0/23	59,690	2026-11-10 19:41:57
205.220.0.0/23	59,670	2026-11-10 19:41:57
136.226.112.0/23	58,931	2026-11-10 21:01:44
136.226.0.0/23	58,422	2026-11-10 21:04:13
137.83.172.0/24	58,404	2026-11-10 21:04:13
161.151.203.0/24	58,236	2026-11-10 21:04:13
159.254.217.0/24	57,791	2026-11-10 21:04:13
170.85.217.0/24	57,670	2026-11-10 21:01:44
170.85.216.0/24	57,573	2026-11-10 21:01:44
205.220.86.0/23	53,866	2026-11-10 19:41:57
205.220.84.0/23	53,845	2026-11-10 19:41:57
137.83.161.0/24	51,099	2026-11-10 20:51:59
136.226.62.0/23	50,796	2026-11-10 21:04:58
136.226.140.0/23	50,769	2026-11-10 21:04:58
136.226.138.0/23	50,688	2026-11-10 21:04:58
147.161.128.0/23	50,382	2026-11-10 21:04:58
159.254.66.0/23	50,236	2026-11-10 21:04:58
159.254.64.0/23	50,211	2026-11-10 20:51:59
165.225.99.0/24	49,046	2026-11-10 20:51:59
205.220.93.0/24	48,168	2026-11-10 20:51:59
209.55.183.0/24	47,813	2026-11-10 21:04:59
205.220.14.0/23	46,418	2026-11-10 20:51:59
205.220.12.0/23	46,301	2026-11-10 19:41:31
165.225.212.0/24	37,546	2026-11-10 19:41:54
170.85.22.0/23	35,136	2026-11-10 20:51:52
170.85.20.0/23	35,011	2026-11-10 21:04:43
170.85.24.0/23	35,005	2026-11-10 19:41:29
170.85.18.0/23	34,901	2026-11-10 20:51:52
209.55.149.0/24	32,644	2026-11-10 21:04:43
170.85.16.0/23	29,658	2026-11-10 19:41:29
170.85.188.0/23	28,535	2026-11-10 21:04:43
170.85.228.0/23	28,483	2026-11-10 21:04:43

Showing top 50 of 586 announced prefixes by sample volume.

Frequently Asked Questions

What is AS22616?

AS22616 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 AS22616 announce?

AS22616 announces 488.7K IPv4 addresses distributed across 291 routed CIDR prefixes. The network is registered in United States.

Who operates AS22616?

AS22616 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 AS22616 registered in?

AS22616 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: 2026-11-10 21:09:06 UTC