AS142561 XTDEF Limited 🇺🇸 US

Announcing 11 prefixes, seen at the RIS collectors.

IPv4 prefixes

768 (3 × /24)

IPv6 prefixes

8 × /48

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS142561
Name: XTDEF Limited
Organisation: XTDEF LIMITED
Country: 🇺🇸 US
RIR: APNIC
Allocated: 2021-07-02
Scope: Not Disclosed
Peering policy: Open
Website: https://xtdef.com
PeeringDB: net/27401

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

11 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Whois

Fetched from whois.apnic.net

as-block:       AS141626 - AS142649
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2020-10-21T04:09:48Z
source:         APNIC

role:           APNIC Hostmaster
address:        PO Box 3646
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2026-08-26T00:40:00Z
source:         APNIC

aut-num:        AS142561
as-name:        XTDEF-LIMITED-AS-AP
descr:          XTDEF Limited
descr:          Cloud services - Hong Kong
country:        US
org:            ORG-XL12-AP
sponsoring-org: ORG-HSL1-AP
admin-c:        XL3592-AP
tech-c:         XL3592-AP
abuse-c:        AH835-AP
mnt-routes:     MAINT-HUS-AP
mnt-by:         APNIC-HM
mnt-irt:        IRT-HUS-AP
last-modified:  2023-09-05T04:15:01Z
source:         APNIC

irt:            IRT-HUS-AP
address:        8 The Green, Ste 4000
e-mail:         abuse@hostus.us
abuse-mailbox:  abuse@hostus.us
admin-c:        HSLA2-AP
tech-c:         HSLA2-AP
auth:           # Filtered
remarks:        IP addresses from this network are further allocated or assigned to customers.
remarks:        Please send all abuse reports to abuse@hostus.us
remarks:        Abuse reports must be submitted through email with the IP address in title.
remarks:        abuse@hostus.us was validated on 2026-07-02
mnt-by:         MAINT-HUS-AP
last-modified:  2026-07-02T18:47:14Z
source:         APNIC

organisation:   ORG-XL12-AP
org-name:       XTDEF Limited
org-type:       OTHER
address:        Room 1405, Trade Centre, 135 Bonham Strand, Sheung Wan
country:        HK
phone:          +852.81229631
e-mail:         hostus@xtdef.com
admin-c:        XL3592-AP
tech-c:         XL3592-AP
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T04:14:59Z
source:         APNIC

role:           ABUSE HUSAP
country:        ZZ
address:        8 The Green, Ste 4000
phone:          +000000000
e-mail:         abuse@hostus.us
admin-c:        HSLA2-AP
tech-c:         HSLA2-AP
nic-hdl:        AH835-AP
remarks:        Generated from irt object IRT-HUS-AP
remarks:        abuse@hostus.us was validated on 2026-07-02
abuse-mailbox:  abuse@hostus.us
mnt-by:         APNIC-ABUSE
last-modified:  2026-07-02T18:47:37Z
source:         APNIC

person:         XTDEF Limited
address:        Room 1405, Trade Centre, 135 Bonham Strand, Sheung Wan
country:        HK
phone:          +852.81229631
e-mail:         hostus@xtdef.com
nic-hdl:        XL3592-AP
mnt-by:         MAINT-HUS-AP
last-modified:  2021-06-30T14:44:34Z
source:         APNIC

as-block:       AS141626 - AS142649
descr:          APNIC ASN block
admin-c:        IA55-AP
tech-c:         IH123-AP
mnt-by:         MNT-APJII-ID
mnt-lower:      MNT-APJII-ID
last-modified:  2026-09-02T04:13:51Z
source:         IDNIC

role:           ID-NIC ADMINISTRATORS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
admin-c:        IH288-AP
tech-c:         IH288-AP
nic-hdl:        IA55-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2026-02-25T04:06:45Z
source:         IDNIC

role:           ID-NIC HOSTMASTERS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
remarks:        spam and abuse report : abuse@apjii.or.id
remarks:        technical and routing : support@apjii.or.id
remarks:        administrative request : admin@apjii.or.id
remarks:        IDNIC hostmasters role object
admin-c:        IH1-AP
tech-c:         IH1-AP
nic-hdl:        IH123-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2024-07-10T05:48:59Z
source:         IDNIC