Data as of Nov 13, 2026

103.19.1.0/24

No anonymizer space · no proxy exits in 30 days

xTom Japan Corporation · space held by Cat Networks K.K.

Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium

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
103.19.0.0/221,024CAT-JPCat Networks K.K. (ORG-CNK1-AP) · JPALLOCATED PORTABLE—abuse@catnetworks.co.jp
└ 103.19.1.0/24256OWL-JPOwl LimitedALLOCATED NON-PORTABLE—abuse@owl.net

Network & registry

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Rotating
First seen
Nov 2015
Current origin since
Aug 2023 · 3.2 yr
Origin networks
5
Last change of origin
Aug 2023
Recorded history

History

Handoffs
4