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AS203997

XTDef Limited

AS203997 is XTDef Limited (xtdef.com). It announces 1,536 IPv4 addresses in 6 prefixes, and 2 IPv6 prefixes.

Hong Kong· RIPE· allocated 2025-11-05· business

1,536
IPv4 addresses announced
6
IPv4 prefixes
2
IPv6 prefixes
100.00%
of its routes RPKI-valid
1,536
of its IPv4 geolocated
5
countries

Where its space is

The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.

  1. Slovenia512 · 33.33%
  2. Austria256 · 16.67%
  3. Finland256 · 16.67%
  4. France256 · 16.67%
  5. Serbia256 · 16.67%

Registry record

Its ASN Whois record, as the registry publishes it.

handle
xtdef
name
XTDef Limited
org
ORG-XL122-RIPE
org name
XTDef Limited
org address
Room 1405, 135 Bonham Strand Trade Centre, 135 Bonham Strand, 000, Sheung Wan, HONG KONG
org country
HK
country
HK
source
ripe
status
ASSIGNED
created
2025-11-05
updated
2026-06-13
maintainer
RIPE-NCC-END-MNT|XTD-RIPE-MNT
abuse name
Abuse-C Role
abuse email
abuse@xtdef.com
abuse kind
role

What the databases see

Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.

IPv4 prefixes

Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.

6 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
81.18.60.0/24Austriavalid172026-10-02
89.23.94.0/24Serbiavalid172026-10-02
151.244.252.0/24Sloveniavalid172026-10-02
164.138.4.0/24Finlandvalid172026-10-02
179.61.243.0/24Francevalid172026-10-02
191.44.74.0/24Sloveniavalid172026-10-02

IPv6 prefixes

Every IPv6 prefix BGP Route saw it announce.

2 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
2a10:e8c0:43::/48Austriavalid202026-10-02
2a10:e8c0:358::/48Austriavalid202026-10-02
00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.

01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell — priced by scope, not by seat.
Annual terms, a named contact, and flexible payment terms — monthly, quarterly or yearly.