Data as of Nov 11, 2026
170.85.90.0/23
2 residential-proxy exits · 30 daysZscaler, Inc.
Residential-proxy exits
Proxy exits
2
0.39% of its addresses · 30 days
Spread
2 of 2
/24s with at least one exit
Providers
1
selling exits here
Oct 12, 2026 – Nov 10, 2026
Exits seen per day
17 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 170.85.90.0/24 | 0 | 1 | |
| 170.85.91.0/24 | 0 | 1 |
Proxy providers listing exits
- AnyIP
Operators, sellers and brokers
Corporate gateways
| Name | Parent | In 170.85.90.0/23 | /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 | 242 | 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@ |
| └ 170.85.90.0/23 | 512 | ZSCALER-WAS4 | Zscaler, Inc. (C11258731) · US | Reassigned | Jul 1, 2025 | poc-abuse@ via ZSCAL |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- Zscaler, Inc.
- Handle
- ZSCAL
- Range
- 170.
85. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Apr 19, 2022
Origin network
AS22616
US
- Name
- Zscaler, Inc.
- Type
- Business
- Registered
- May 28, 2014
- Domain
- zscaler.com
- Website
- www.zscaler.com
- Industry
- Service
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2025
- Current origin since
- Aug 2025 · 1.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 170.85.90.0/23 | AS22616 | /24 | ARIN | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS22616 | RADB | Zscaler WAS4 | MAINT-AS53444 | Jul 1, 2025 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 170.85.90.0/24 | AS22616 | RADB | Zscaler WAS4 | MAINT-AS53444 | Jul 1, 2025 |
| 170.85.91.0/24 | AS22616 | RADB | Zscaler WAS4 | MAINT-AS53444 | Jul 1, 2025 |
Whois
Registration for this announcement
- Range
- 170.
85. 90. 0/ 23 - Netname
- ZSCALER-WAS4
- Registrant
- Zscaler, Inc.
- Organization
- Zscaler, Inc. (C11258731)
- Type
- Reassigned
- Handle
- NET-170-85-90-0-1
- Parent
- NET-170-85-0-0-1
- Created
- Jul 1, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 19, 2022
- Status
- assigned
Report abuse
Abuse contact
- poc-abuse@
zscaler. com - Name
- poc-abuse
- Phone
- +1-408-701-0534
- Handle
- POCAB2-ARIN