AS203997 - xtdef - XTDef Limited, HK

Austria France New Zealand Slovenia
AS Number
AS203997
AS Name
xtdef
Org Name
XTDef Limited
Country
Hong Kong
Registry

ripe

RegDate

Updated

2026-03-05T15:29:31Z

AS203997 Looking Glass
IPv4Prefixes

6

IPv6Prefixes

4

IPv4 NUMs

1,536

IPv6 NUMs(/64)

4,294,967,296

1,536 IPv4 Addresses
CIDR Description IP Num
81.18.60.0/24
ROA Signed and Valid IRR InValid
XTDef Limited 256
87.76.184.0/24
ROA Signed and Valid IRR InValid
XTDef Limited 256
89.23.94.0/24
ROA Signed and Valid IRR InValid
XTDef Limited 256
91.217.223.0/24
ROA Signed and Valid IRR InValid
AVANT.SI d.o.o. 256
151.244.252.0/24
IRR InValid
XTDef Limited 256
179.61.243.0/24
ROA Signed and Valid IRR InValid
XTDef Limited 256
CIDR Description IP NUMs(prefix /64)
2a10:e8c0::/32
ROA Signed and Valid
XTDef Limited 4294967296
2a10:e8c0:4::/48
ROA Signed and Valid
XTDef Limited 65536
2a10:e8c0:33::/48
ROA Signed and Valid
XTDef Limited 65536
2a10:e8c0:43::/48
ROA Signed and Valid
XTDef Limited 65536
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS35661 VIRTUASYS-EU - VIRTUA SYSTEMS SAS, FR France 6,912 12,902,793,216 IPv4 IPv4
AS40994 Alwyzon - Hohl IT e.U., AT Austria 5,888 38,654,705,664 IPv4 IPv4 IPv6 IPv6
AS57695 MISAKA - Misaka Network, Inc., US United States 4,096 8,862,695,424 IPv4 IPv4
AS61138 ZAPPIE-HOST-AS - Zappie Host LLC, US United States 12,544 12,884,901,888 IPv4 IPv4 IPv6 IPv6
AS20473 AS-VULTR - The Constant Company, LLC, US United States 1,463,296 455,562,100,736 IPv6 IPv6 
as-block:       AS203940 - AS205662
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2026-03-05T15:29:31Z
last-modified:  2026-03-05T15:29:31Z
source:         RIPE



aut-num:        AS203997
as-name:        xtdef
org:            ORG-XL122-RIPE
import:         from AS40994 accept ANY
import:         from AS20473 accept ANY
import:         from AS35661 accept ANY
import:         from AS61138 accept ANY
export:         to AS40994 announce AS203997
export:         to AS20473 announce AS203997
export:         to AS35661 announce AS203997
export:         to AS61138 announce AS203997
admin-c:        NA9455-RIPE
tech-c:         NA9455-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         XTD-RIPE-MNT
created:        2025-11-05T16:00:00Z
last-modified:  2026-03-22T08:33:49Z
source:         RIPE

organisation:   ORG-XL122-RIPE
org-name:       XTDef Limited
country:        HK
reg-nr:         3046210
org-type:       LIR
address:        Room 1405, 135 Bonham Strand Trade Centre, 135 Bonham Strand
address:        000
address:        Sheung Wan
address:        HONG KONG
phone:          +85239563112
e-mail:         legal@xtdef.com
admin-c:        NA9455-RIPE
tech-c:         NA9455-RIPE
abuse-c:        AR78978-RIPE
mnt-ref:        XTD-RIPE-MNT
mnt-ref:        netutils-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         XTD-RIPE-MNT
created:        2025-10-28T07:40:24Z
last-modified:  2026-05-13T07:17:57Z
source:         RIPE

role:           NOC
address:        HONG KONG
address:        Sheung Wan
address:        000
address:        Room 1405, 135 Bonham Strand Trade Centre, 135 Bonham Strand
phone:          +85239563112
e-mail:         ops@xtdef.com
nic-hdl:        NA9455-RIPE
mnt-by:         XTD-RIPE-MNT
created:        2025-10-28T07:40:24Z
last-modified:  2025-10-28T07:40:24Z
source:         RIPE