AS17645 NTT Singapore Pte Ltd 🇸🇬 SG

Announcing 13 prefixes, seen at the RIS collectors.

IPv4 prefixes

87,296 (341 × /24)

IPv6 prefixes

1 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

35,933

ASes reachable through it

Registry and operator data

AS number: AS17645
Name: NTT Singapore Pte Ltd
Organisation: NTT DATA Enterprise Internet Services - SG
Country: 🇸🇬 SG
RIR: APNIC
Allocated: 2001-02-22
Network type: NSP
Scope: Asia Pacific
Peering policy: Selective
Website: https://hello.global.ntt/
PeeringDB: net/1122
Exchanges: 1
Facilities: 2

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

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

Whois

Fetched from whois.apnic.net

as-block:       AS17408 - AS17651
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:  2019-01-08T23:22:27Z
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:        AS17645
as-name:        NTT-SG-AP
descr:          ASN - NTT SINGAPORE PTE LTD
descr:          A NTT Communications Group Company
country:        SG
remarks:        For routing information,
remarks:        Please refer to RADB or
remarks:        NTT Communications Routing Registry (NTTCOM)
remarks:        *****************************************************
remarks:        Contacts per RFC2142
remarks:        *****************************************************
org:            ORG-NSPL9-AP
admin-c:        NDEI2-AP
tech-c:         NDEI2-AP
abuse-c:        AN734-AP
notify:         nttapac.sg.ip-eng@global.ntt
mnt-lower:      MAINT-SG-NTTS
mnt-routes:     MAINT-SG-NTTS
mnt-by:         APNIC-HM
mnt-irt:        IRT-NTT-SG
last-modified:  2025-01-30T08:12:14Z
source:         APNIC

irt:            IRT-NTT-SG
address:        NTT Singapore Pte Ltd, 8 Kallang Avenue,
e-mail:         ap.eis-netops@global.ntt
abuse-mailbox:  ap.eis-netops@global.ntt
admin-c:        NAA7-AP
tech-c:         IE11-AP
auth:           # Filtered
remarks:        ap.eis-netops@global.ntt was validated on 2026-03-25
mnt-by:         MAINT-SG-NTTS
last-modified:  2026-05-21T04:15:52Z
source:         APNIC

organisation:   ORG-NSPL9-AP
org-name:       NTT Singapore Pte Ltd
org-type:       LIR
country:        SG
address:        20 West, Pasir Panjang Road
address:        # 11-28, Mapletree Business City
phone:          +65-6438-3101
fax-no:         +65-6438-3102
e-mail:         ap.eis-netops@global.ntt
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-07-02T13:10:19Z
source:         APNIC

role:           ABUSE NTTSG
country:        ZZ
address:        NTT Singapore Pte Ltd, 8 Kallang Avenue,
phone:          +000000000
e-mail:         ap.eis-netops@global.ntt
admin-c:        NAA7-AP
tech-c:         IE11-AP
nic-hdl:        AN734-AP
remarks:        Generated from irt object IRT-NTT-SG
remarks:        ap.eis-netops@global.ntt was validated on 2026-03-25
abuse-mailbox:  ap.eis-netops@global.ntt
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-25T10:48:20Z
source:         APNIC

person:         NTT DATA EIS IP Engineering
address:        Ground Floor, Tower 3, Darling Park, 201 Sussex Street, Sydney
country:        AU
phone:          +61 2 6230 1997
e-mail:         ap.eis-netops@global.ntt
nic-hdl:        NDEI2-AP
mnt-by:         MAINT-NTTEIS-BB
last-modified:  2025-01-30T07:17:22Z
source:         APNIC

person:         IP ENGINEERING - AS17645
nic-hdl:        IE11-AP
e-mail:         ap.eis-netops@global.ntt
address:        NTT Communications Group Company
address:        NTT Singapore Pte Ltd
                20 West, Pasir Panjang Road
phone:          +65 6973 3612
country:        SG
mnt-by:         MAINT-SG-NTTS
last-modified:  2025-07-01T09:55:34Z
source:         APNIC

person:         IP Engineering - AS17645
address:        20 West, Pasir Panjang Road
country:        SG
phone:          +65 6973 3612
e-mail:         ap.eis-netops@global.ntt
nic-hdl:        IEA3-AP
mnt-by:         MAINT-SG-NTTS
remarks:        *****************************************
                To be deleted
                *****************************************
last-modified:  2025-07-01T09:55:51Z
source:         APNIC

person:         IP ENGINEERING - AS17645
address:        NTT Singapore Pte Ltd
                20 West, Pasir Panjang Road
country:        SG
phone:          +65 69733612
e-mail:         nttapac.sg.ip-eng@global.ntt
nic-hdl:        IEA4-AP
mnt-by:         MAINT-NTTS-ISD-NET-SG
last-modified:  2022-07-19T12:09:25Z
source:         APNIC

person:         NETWORK ADMIN - AS17645
address:        NTT Singapore Pte Ltd
                20 West, Pasir Panjang Road
country:        SG
phone:          +65 6871-5403
e-mail:         ap.eis-netops@global.ntt
nic-hdl:        NAA7-AP
mnt-by:         MAINT-SG-NTTS
last-modified:  2025-07-01T09:56:01Z
source:         APNIC