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AS139617 ISEAS Yusof Ishak Institute 🇸🇬 SG

Announcing 1 prefixes, seen at the RIS collectors.

IPv4 prefixes
1
256 (1 × /24)
IPv6 prefixes
0
-
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS139617
Name
ISEAS Yusof Ishak Institute
Organisation
ISEAS Yusof Ishak Institute
Country
🇸🇬 SG
RIR
APNIC
Allocated
2019-08-27

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 1 no ROA (100.0%)

Whois

Fetched from whois.apnic.net

as-block:       AS139578 - AS140601
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:  2019-06-13T01:03:23Z
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:        AS139617
as-name:        ISEAS-AS-AP
descr:          ISEAS Yusof Ishak Institute
country:        SG
org:            ORG-IYII1-AP
admin-c:        IYII1-AP
tech-c:         IYII1-AP
abuse-c:        AI670-AP
mnt-lower:      MAINT-ISEAS-SG
mnt-routes:     MAINT-ISEAS-SG
mnt-by:         APNIC-HM
mnt-irt:        IRT-ISEAS-SG
last-modified:  2020-09-30T13:02:45Z
source:         APNIC

irt:            IRT-ISEAS-SG
address:        30 Heng Mui Keng Terrace, Singapore 119614
e-mail:         it_admin@iseas.edu.sg
abuse-mailbox:  it_admin@iseas.edu.sg
admin-c:        IYII1-AP
tech-c:         IYII1-AP
auth:           # Filtered
remarks:        it_admin@iseas.edu.sg is invalid
mnt-by:         MAINT-ISEAS-SG
last-modified:  2025-11-18T00:33:15Z
source:         APNIC

organisation:   ORG-IYII1-AP
org-name:       ISEAS Yusof Ishak Institute
org-type:       LIR
country:        SG
address:        30 Heng Mui Keng Terrace
phone:          +65-6778-0955
fax-no:         +65-6775-6264
e-mail:         it_admin@iseas.edu.sg
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:17:56Z
source:         APNIC

role:           ABUSE ISEASSG
country:        ZZ
address:        30 Heng Mui Keng Terrace, Singapore 119614
phone:          +000000000
e-mail:         it_admin@iseas.edu.sg
admin-c:        IYII1-AP
tech-c:         IYII1-AP
nic-hdl:        AI670-AP
remarks:        Generated from irt object IRT-ISEAS-SG
remarks:        it_admin@iseas.edu.sg is invalid
abuse-mailbox:  it_admin@iseas.edu.sg
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-10T13:07:20Z
source:         APNIC

role:           ISEAS Yusof Ishak Institute administrator
address:        30 Heng Mui Keng Terrace, Singapore  119614
country:        SG
phone:          +65-6778-0955
fax-no:         +65-6775-6264
e-mail:         it_admin@iseas.edu.sg
admin-c:        IYII1-AP
tech-c:         IYII1-AP
nic-hdl:        IYII1-AP
mnt-by:         MAINT-ISEAS-SG
last-modified:  2019-08-27T23:40:57Z
source:         APNIC