AS53444 ZSCALER-SJC

One of Zscaler's Autonomous Systems (ZSCALER-SJC). 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

• The real user sits behind this address inside a corporate tenant; one shared egress carries the traffic of many distinct customer employees.
• This is a San Jose node (sibling of the much busier SJC1, [AS22616](https://asn.ipinfo.app/AS22616)) and announces only a small block. Where it carries traffic, Zscaler routes each user to their nearest node, so an egress here corresponds to corporate users in western North America.
• Zscaler announces from several ASNs across its regions. Related Zscaler networks you may encounter: [AS22616 ZSCALER-SJC1](https://asn.ipinfo.app/AS22616), [AS32921 ZSCALER-NEWYORK](https://asn.ipinfo.app/AS32921), [AS40384 ZSCALER-GRX](https://asn.ipinfo.app/AS40384), [AS53813 ZSCALER-INC](https://asn.ipinfo.app/AS53813), [AS62044 ZSCALER-EMEA](https://asn.ipinfo.app/AS62044), and [AS62907 ZSCALER-CORP](https://asn.ipinfo.app/AS62907).

Interesting

• Because so many enterprises route through Zscaler, its egress IPs can surface in threat feeds purely by volume — the traffic is aggregated, not malicious.