AS53813 ZSCALER-INC

One of Zscaler's Autonomous Systems (ZSCALER-INC). Zscaler runs a global cloud

security platform (SASE / Secure Web Gateway) that enterprise traffic is routed

through on its way to the internet, so an IP here is a **security-proxy

egress**, not a datacenter server or an end user's own address.

What it's used for

• Egress for Zscaler Internet Access (ZIA) — inspecting and filtering outbound web traffic for corporate customers from cloud enforcement nodes.
• Zero-trust access to private apps (Zscaler Private Access, ZPA).

Notable

• Previously catalogued as hosting; it is reclassified as business because what transits it is corporate end-user browsing behind a multi-tenant proxy, not datacenter servers.
• Related Zscaler networks: [AS22616 ZSCALER-SJC1](https://asn.ipinfo.app/AS22616), [AS32921 ZSCALER-NEWYORK](https://asn.ipinfo.app/AS32921), [AS40384 ZSCALER-GRX](https://asn.ipinfo.app/AS40384), [AS53444 ZSCALER-SJC](https://asn.ipinfo.app/AS53444), [AS62044 ZSCALER-EMEA](https://asn.ipinfo.app/AS62044), and [AS62907 ZSCALER-CORP](https://asn.ipinfo.app/AS62907).

Interesting

• One shared egress carries thousands of distinct users, so an IP here maps to any of many customer orgs rather than one identifiable company.