AS203997 - xtdef - XTDef Limited, HK

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

ripe

RegDate

Updated

2026-03-05T15:29:31Z

AS203997 Looking Glass
IPv4Prefixes

6

IPv6Prefixes

3

IPv4 NUMs

1,536

IPv6 NUMs(/64)

196,608

CIDR Description IP Num
81.18.60.0/24
IRR InValid
XTDef Limited 256
87.76.184.0/24
IRR InValid
XTDef Limited 256
89.23.94.0/24
IRR InValid
XTDef Limited 256
151.244.252.0/24
IRR InValid
XTDef Limited 256
179.61.243.0/24
IRR InValid
XTDef Limited 256
191.44.74.0/24
IRR InValid
XTDef Limited 256
CIDR Description IP NUMs(prefix /64)
2a10:e8c0:4::/48
XTDef Limited 65536
2a10:e8c0:43::/48
XTDef Limited 65536
2a10:e8c0:595::/48
XTDef Limited 65536
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS40994 Alwyzon - Hohl IT e.U., AT Austria 5,632 38,654,705,664 IPv4 IPv4 IPv6 IPv6
AS57695 MISAKA - Misaka Network, Inc., US United States 3,072 8,879,669,248 IPv4 IPv4
AS61138 ZAPPIE-HOST-AS - Zappie Host LLC, US United States 12,288 12,884,901,888 IPv4 IPv4 IPv6 IPv6
AS263812 SONDATECH S.A.S., AR Argentina 23,296 1,638,400 IPv6 IPv6

Whois Record

as-block AS203940 - AS205662

as-block
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

aut-num
as-name
xtdef
org
ORG-XL122-RIPE
import
from AS40994 accept ANY
from AS20473 accept ANY
from AS35661 accept ANY
from AS61138 accept ANY
from AS263812 accept ANY
export
to AS40994 announce AS203997
to AS20473 announce AS203997
to AS35661 announce AS203997
to AS61138 announce AS203997
to AS263812 announce AS203997
admin-c
NA9455-RIPE
tech-c
NA9455-RIPE
status
ASSIGNED
mnt-by
RIPE-NCC-END-MNT
XTD-RIPE-MNT
created
2025-11-05T16:00:00Z
last-modified
2026-06-13T06:34:23Z
source
RIPE

organisation ORG-XL122-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
000
Sheung Wan
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
netutils-mnt
mnt-by
RIPE-NCC-HM-MNT
XTD-RIPE-MNT
created
2025-10-28T07:40:24Z
last-modified
2026-05-13T07:17:57Z
source
RIPE

role NOC

role
NOC
address
HONG KONG
Sheung Wan
000
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
 

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
import:         from AS263812 accept ANY
export:         to AS40994 announce AS203997
export:         to AS20473 announce AS203997
export:         to AS35661 announce AS203997
export:         to AS61138 announce AS203997
export:         to AS263812 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:  2026-06-13T06:34:23Z
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