Autonomous system
AS198510 XTDef XTDEF-Limited
Unclassified RIPE Cable/DSL/ISP
Summary
XTDef Limited
isp residential cable dsl
XTDEF is operated by XTDef Limited.
What it's used for
- The address space carries residential customer premises equipment, as indicated by reverse DNS entries such as
cpe-80-246-224-64.cpe-ljubljana.xtdef.comandcpe-89-116-221-64.cpe-dublin.xtdef.com. - The AS announces 1792 IPv4 addresses across 7 prefixes and 6 IPv6 prefixes, with 4 observed neighbours, a ratio consistent with an access network providing last-mile connectivity.
- Traffic from this AS consists of subscriber eyeballs for cable and DSL services, as confirmed by the PeeringDB classification of "Cable/DSL/ISP" and the
cpereverse DNS naming convention.
Notable
- Registrants for most prefixes are XTDef Limited, though 89.116.221.0/24 is registered to SC "Lithuanian Radio and TV Center" with the netname
LRTC_INETNUM_RENT, indicating leased address space. - The address inventory is geographically diverse, with reverse DNS pointing to Ljubljana and Dublin, despite the AS being registered in Hong Kong.
- The AS was first seen in RIS on 2023-07-05, indicating a relatively recent deployment.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-04, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 1.79K addresses IPv6 7 prefixes
| Country | Name | Prefixes |
|---|---|---|
| HK | Hong Kong | 14 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS198510- Registry name
- XTDef
- Registrant
- XTDEF-Limited
- Abuse contact
- abuse@xtdef.com
- Registered
- 2023-05-22
- Last changed
- 2024-09-13
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- XTDef Retail
- Network type
- Cable/DSL/ISP
- Scope
- Not Disclosed
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS198510:AS-NET- Website
- https://publicdata.xtdef.com
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 15 valid, 0 with no ROA
- ROAs
- 9 authorising AS198510
- ASPA
- no ASPA record
- IRR
- 100% registered · 15 of 15 announcements
- Route objects
- 32 naming AS198510
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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: 453 networks and 1,853 prefixes, as published 2026-11-05. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere