Data as of Nov 10, 2026
175.107.166.0/23
No anonymizer space · no proxy exits in 30 daysZscaler, Inc. · space held by Zscaler Australia PTY LTD
Announcement
this exact prefix
RPKI valid
Announced by
Type
Corporate gateway
Risk
20 / 100 · Low
Recent change
New origin Jun 2026
its first announcement on record
Operators, sellers and brokers
Corporate gateways
| Name | Parent | In 175.107.166.0/23 | /24s |
|---|---|---|---|
| Zscaler | 512100% | 2 |
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 175.107.128.0/18 since Nov 2023 | AS22616 | Corporate gateway | 8 | Zscaler Australia PTY LTD |
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 |
|---|---|---|---|---|---|---|
| 175.107.128.0/18 | 16,384 | ZSCALER-AU | Zscaler Australia PTY LTD (ORG-ZAPL2-AP) · AU | ALLOCATED PORTABLE | — | poc-abuse@ |
| └ 175.107.166.0/23 | 512 | ZSCALER-TOKYO | Zscaler Tokyo | ASSIGNED NON-PORTABLE | — | poc-abuse@ |
Network & registry
Registry
Holder
- Organization
- Zscaler Australia PTY LTD
- Handle
- ORG-ZAPL2-AP
- Range
- 175.
107. 128. 0/ 18 - Registration type
- ALLOCATED PORTABLE
Origin network
AS53813
US
- Name
- Zscaler, Inc.
- Type
- Business
- Registered
- Jun 3, 2011
- 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
- Jun 2026
- Current origin since
- Jun 2026 · 5 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 175.107.166.0/23 | AS53813 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS53813 | RADB | Zscaler TYO4 | MAINT-AS53444 | Nov 13, 2025 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 175.107.166.0/24 | AS53813 | RADB | Zscaler TYO4 | MAINT-AS53444 | Nov 13, 2025 |
| 175.107.166.0/24 | AS4802 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Jan 27, 2012 |
| 175.107.167.0/24 | AS53813 | RADB | Zscaler TYO4 | MAINT-AS53444 | Nov 13, 2025 |
Whois
Registration for this announcement
- Range
- 175.
107. 166. 0/ 23 - Netname
- ZSCALER-TOKYO
- Registrant
- Zscaler Tokyo
- Registrant country
- JP
- Organization
- Zscaler Tokyo
- Org country
- JP
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 13, 2025
- Maintainer
- MAINT-ZSCALER-AU
- RIR
- APNIC
- Country
- AU
- Delegated
- Jan 11, 2010
- Status
- assigned
Report abuse
Abuse contact
- poc-abuse@
zscaler. com - Name
- Zscaler Australia PTY LTD administrator
- Handle
- ZAPL2-AP