Autonomous system
AS4785 XTOM-AS-JP xTom
Residential APNIC
Summary
xTom Japan
hosting transit legacy
XTOM-AS-JP — the Japanese network of xTom, an infrastructure-as-a-service provider offering colocation, dedicated servers, and wholesale IP transit.
What it's used for
- Colocation and server hosting in Tokyo and Osaka.
- Wholesale connectivity and IP transit, with peering across Japanese exchanges.
Notable
- xTom was founded in 2011 and is headquartered in Germany, operating through local subsidiaries including xTom Japan Corporation.
- The network peers at major Japanese exchange points and interconnects with the large domestic carriers, positioning itself as a low-cost route into the Japanese market for foreign networks.
Interesting
- This is a hosting and transit network, so addresses behind it are servers and downstream networks — a very different profile from the consumer ISPs that dominate nearby AS numbers in this range.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Osaka | Osaka, Japan | 218.100.9.89 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 31 prefixes · 11.78K addresses IPv6 41 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 72 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS4785- Registry name
- XTOM-AS-JP
- Registrant
- xTom Limited
- Abuse contact
- noc@xtom.com
- Registered
- 2018-02-22
- Last changed
- 2020-05-12
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 91% valid · 60 valid, 6 with no ROA
- ROAs
- 453 authorising AS4785
- ASPA
- no ASPA record
- IRR
- 100% registered · 66 of 66 announcements
- Route objects
- 1,459 naming AS4785
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,775 prefixes, as published 2026-10-11. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
1 IC3 indicators addresses in this network appear in FBI IC3 cybersecurity advisories.
| Prefix | Advisory | Published |
|---|---|---|
45.117.102.170 | China-Linked Hacking Group QTFY Targets Military and Critical Infrastructure with Malicious Distributed Systems | 2026-08-26 |
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere