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Data as of Nov 5, 2026

137.31.136.0/23

No anonymizer space · no proxy exits in 30 days

Zscaler, Inc. · space held by Zscaler Switzerland GmbH

Announcement
this exact prefix
RPKI valid
Announced by
AS53813
Type
Corporate gateway
Risk
20 / 100 · Low
Recent change
New origin Aug 2026
its first announcement on record

Operators, sellers and brokers

Corporate gateways

NameParentIn 137.31.136.0/23/24s
Zscaler
512100%
2

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
137.31.0.0/16
since Oct 2025
AS22616Corporate gateway3Zscaler 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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
137.31.0.0/1665,536ZscalerZscaler Switzerland GmbH (ORG-ZSG1-RIPE) · CHLEGACYOct 15, 2025poc-abuse@zscaler.com
└ 137.31.136.0/23512ZSCALER-MUMBAIZscaler MumbaiLEGACYAug 12, 2026poc-abuse@zscaler.com
via Zscaler

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

AnnouncementRouting historyRPKI & IRRWhois & abuse
Registry

Holder

Organization
Zscaler Switzerland GmbH
Handle
ORG-ZSG1-RIPE
Range
137.31.0.0/16
Registration type
LEGACY
Record created
Oct 15, 2025
Legacy
yes
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