Data as of Nov 11, 2026

137.31.64.0/20

No anonymizer space · no proxy exits in 30 days

Zscaler, Inc. · space held by Zscaler Switzerland GmbH

Announcement
No RPKI
Announced by
Type
Corporate gateway

Operators, sellers and brokers

Corporate gateways

NameParentIn 137.31.64.0/20/24s
Zscaler
4,096100%
16

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
137.31.0.0/1665,536ZscalerZscaler Switzerland GmbH (ORG-ZSG1-RIPE) · CHLEGACYOct 15, 2025poc-abuse@zscaler.com
└ 137.31.64.0/23512ZSCALER-TYO6Zscaler Tokyo TYO6LEGACYSep 28, 2026poc-abuse@zscaler.com
via Zscaler
└ 137.31.66.0/23512ZSCALER-TYO6Zscaler Tokyo TYO6LEGACYSep 28, 2026poc-abuse@zscaler.com
via Zscaler
└ 137.31.68.0/23512ZSCALER-TYO6Zscaler Tokyo TYO6LEGACYSep 28, 2026poc-abuse@zscaler.com
via Zscaler
└ 137.31.70.0/23512ZSCALER-TYO6Zscaler Tokyo TYO6LEGACYSep 28, 2026poc-abuse@zscaler.com
via Zscaler
└ 137.31.72.0/23512ZSCALER-TYO6Zscaler Tokyo TYO6LEGACYSep 28, 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

Routing timeline

Who has announced 137.31.0.0/16

137.31.0.0/16

Routing history

Pattern
Reactivated
First seen
Jan 2018
Current origin since
Oct 2025 · 1.1 yr
Origin networks
4
Last change of origin
Oct 2025
Recorded history

History

Handoffs
3