Data as of Nov 15, 2026
220.42.18.0/23
No anonymizer space · no proxy exits in 30 daysZscaler, Inc. · space held by Zscaler Switzerland GmbH
Announcement
this exact prefix
RPKI valid
Announced by
Type
Corporate gateway
Risk
20 / 100 · Low
Recent change
New origin Nov 14, 2026
its first announcement on record
Operators, sellers and brokers
Corporate gateways
| Name | Parent | In 220.42.18.0/23 | /24s |
|---|---|---|---|
| Zscaler | 512100% | 2 |
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 220.42.0.0/16 since Mar 2026 | AS22616 | Corporate gateway | Zscaler Switzerland GmbH |
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 |
|---|---|---|---|---|---|---|
| 220.42.0.0/15 | 131,072 | CH-ZSCALER1-20020412 | Zscaler Switzerland GmbH (ORG-ZSG1-RIPE) · CH | ALLOCATED PA | Mar 27, 2026 | poc-abuse@ |
| └ 220.42.18.0/23 | 512 | ZSCALER-SYDNEY | Zscaler Sydney | ASSIGNED PA | Nov 3, 2026 | poc-abuse@ via CH-ZSCALER1-20020412 |
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 Switzerland GmbH
- Handle
- ORG-ZSG1-RIPE
- Range
- 220.
42. 0. 0/ 15 - Registration type
- ALLOCATED PA
- Record created
- Mar 27, 2026
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
- Nov 14, 2026
- Current origin since
- Nov 14, 2026 · under a month
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 220.42.18.0/23 | AS53813 | /24 | RIPE | RPKI valid |
| 220.42.0.0/16 | AS22616 | /16 | RIPE | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS53813 | RADB | Zscaler SYD3 | MAINT-AS53444 | Nov 3, 2026 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 220.42.18.0/24 | AS53813 | RADB | Zscaler SYD3 | MAINT-AS53444 | Nov 3, 2026 |
| 220.42.19.0/24 | AS53813 | RADB | Zscaler SYD3 | MAINT-AS53444 | Nov 3, 2026 |
Whois
Registration for this announcement
- Range
- 220.
42. 18. 0/ 23 - Netname
- ZSCALER-SYDNEY
- Registrant
- Zscaler Sydney
- Registrant country
- AU
- Organization
- Zscaler Sydney
- Org country
- AU
- Type
- ASSIGNED PA
- Created
- Nov 3, 2026
- Updated
- Nov 3, 2026
- Maintainer
- ZSCALER-RIPE-MNT
- RIR
- RIPE NCC
- Country
- CH
- Delegated
- Apr 12, 2002
- Status
- assigned
Report abuse
Abuse contact
- poc-abuse@
zscaler. com - Name
- Zscaler Abuse Desk
- Handle
- ZA1089-RIPE