Data as of Nov 12, 2026

170.85.28.0/23

3 residential-proxy exits · 30 days

Zscaler Switzerland GmbH · space held by Zscaler, Inc.

Announcement

this exact prefix

RPKI valid

Announced by

AS62044

Type

Corporate gateway

Risk

20 / 100 · Low

Residential-proxy exits

Proxy exits

0.59% of its addresses · 30 days

Spread

1 of 2

/24s with at least one exit

Providers

selling exits here

Oct 13, 2026 – Nov 11, 2026

Exits seen per day

3 observations

Proxy providers listing exits

ProxyEmpire
Proxyma
Shifter

Operators, sellers and brokers

Corporate gateways

Name	Parent	In 170.85.28.0/23	/24s
Zscaler		512100%	2

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Proxy exits	Holder	RPKI
170.85.0.0/16 since Apr 2022	AS22616	Corporate gateway	249	Zscaler, Inc.

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
170.85.0.0/16	65,536	ZSCAL	Zscaler, Inc. (ZSCAL) · US	Direct Allocation	Apr 19, 2022	poc-abuse@zscaler.com
└ 170.85.28.0/24	256	ZSCALER-WAW2	unknown	—	—	—
└ 170.85.29.0/24	256	ZSCALER-WAW2	unknown	—	—	—

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern: Stable
First seen: Jul 2023
Current origin since: Jul 2023 · 3.3 yr
Origin networks: 1

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
170.85.28.0/23	AS62044	/24	ARIN	RPKI valid

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS62044	RADB	Zscaler WAW2	MAINT-AS53444	Nov 13, 2023

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
170.85.28.0/24	AS62044	RADB	Zscaler WAW2	MAINT-AS53444	Nov 13, 2023
170.85.29.0/24	AS62044	RADB	Zscaler WAW2	MAINT-AS53444	Nov 13, 2023