AS Number
AS18402
AS Name
NLB-AS-SG-AP
Org Name
NATIONAL LIBRARY BOARD
Country / Region
Singapore
Registry

apnic

RegDate

Updated

2019-01-08T23:19:07Z

AS18402 Looking Glass
IPv4Prefixes

6

IPv6Prefixes

1

IPv4 NUMs

1,536

IPv6 NUMs(/64)

65,536

CIDR Description IP Num
203.78.9.0/24
IRR InValid
NLB-SG NATIONAL LIBRARY BOARD 256
203.78.11.0/24
IRR InValid
NLB-SG NATIONAL LIBRARY BOARD 256
203.78.12.0/24
IRR InValid
NLB-SG NATIONAL LIBRARY BOARD 256
203.78.13.0/24
IRR InValid
NLB-SG NATIONAL LIBRARY BOARD 256
203.78.14.0/24
IRR InValid
NLB-SG NATIONAL LIBRARY BOARD 256
203.78.15.0/24
IRR InValid
NLB-SG NATIONAL LIBRARY BOARD 256
CIDR Description IP NUMs(prefix /64)
2001:df0:301::/48
IDA-NLB GOVERNMENT TECHNOLOGY AGENCY 65536
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS9255 CONNECTPLUS-AS - Singapore Telecom, ConnectPlus, SG Singapore 25,344 3,735,552 IPv4 IPv4
AS16509 AMAZON-02 - Amazon.com, Inc., US United States 174,684,160 4,165,150,375,936 IPv4 IPv4
AS3758 SINGNET - SingNet Pte Ltd, SG Singapore 736,256 12,924,289,024 IPv6 IPv6

Whois Record

as-block AS17653 - AS18431

as-block
descr
APNIC ASN block
remarks
These AS numbers are further assigned by APNIC
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
2019-01-08T23:19:07Z
source
APNIC

role APNIC Hostmaster

role
APNIC Hostmaster
address
PO Box 3646
South Brisbane
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 AS18402

aut-num
as-name
NLB-AS-SG-AP
descr
NATIONAL LIBRARY BOARD
NETWORK OPERATION CENTRE
SINGAPORE
country
SG
import
from AS7658 accept any
from AS9226 accept any
from AS4628 accept any
from AS4657 accept any
from AS3758 accept any
export
to AS7658 announce AS18402
to AS9226 announce AS18402
to AS4628 announce AS18402
to AS4657 announce AS18402
to AS3758 announce AS18402
org
ORG-NLB1-AP
admin-c
TS2000-AP
tech-c
TS2000-AP
abuse-c
AN1055-AP
notify
POH_CHOY_YEE@NLB.GOV.SG
remarks
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
mnt-lower
MAINT-SG-NLB
mnt-routes
MAINT-SG-NLB
mnt-by
APNIC-HM
mnt-irt
IRT-NLB-NON-SG
last-modified
2026-08-13T02:25:06Z
source
APNIC

irt IRT-NLB-NON-SG

irt
IRT-NLB-NON-SG
address
BLK 750D CHAI CHEE ROAD
SINGAPORE 469004
e-mail
nis_help@nlb.gov.sg
abuse-mailbox
nis_help@nlb.gov.sg
admin-c
TS2000-AP
tech-c
TS2000-AP
auth
# Filtered
remarks
nis_help@nlb.gov.sg was validated on 2026-05-20
mnt-by
MAINT-SG-NLB
last-modified
2026-07-17T09:07:45Z
source
APNIC

organisation ORG-NLB1-AP

organisation
ORG-NLB1-AP
org-name
National Library Board
org-type
LIR
country
SG
address
Blk750D Chai Chee Road
Technopark @ ChaiChee # 03-01/02
phone
+65-6704-1057
fax-no
+65-6446-7608
e-mail
enquiry@nlb.gov.sg
mnt-ref
APNIC-HM
mnt-by
APNIC-HM
last-modified
2023-09-05T02:14:54Z
source
APNIC

role ABUSE NLBNONSG

role
ABUSE NLBNONSG
country
ZZ
address
BLK 750D CHAI CHEE ROAD
SINGAPORE 469004
phone
+000000000
e-mail
nis_help@nlb.gov.sg
admin-c
TS2000-AP
tech-c
TS2000-AP
nic-hdl
AN1055-AP
remarks
Generated from irt object IRT-NLB-NON-SG
nis_help@nlb.gov.sg was validated on 2026-05-20
abuse-mailbox
nis_help@nlb.gov.sg
mnt-by
APNIC-ABUSE
last-modified
2026-05-20T02:20:37Z
source
APNIC

person TAUFIK SUPAN

person
TAUFIK SUPAN
nic-hdl
TS2000-AP
e-mail
TAUFIK_SUPAN@NLB.GOV.SG
address
Blk750D Chai Chee Road
#03-01 Singapore 469004
country
SG
phone
+65-6704-1057
fax-no
+65-6446-7608
mnt-by
MAINT-SG-NLB
last-modified
2017-02-26T23:41:04Z
source
APNIC

as-block:       AS17653 - AS18431
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:  2019-01-08T23:19:07Z
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:        AS18402
as-name:        NLB-AS-SG-AP
descr:          NATIONAL LIBRARY BOARD
descr:          NETWORK OPERATION CENTRE
descr:          SINGAPORE
country:        SG
import:         from AS7658 accept any
import:         from AS9226 accept any
import:         from AS4628 accept any
import:         from AS4657 accept any
import:         from AS3758 accept any
export:         to AS7658 announce AS18402
export:         to AS9226 announce AS18402
export:         to AS4628 announce AS18402
export:         to AS4657 announce AS18402
export:         to AS3758 announce AS18402
org:            ORG-NLB1-AP
admin-c:        TS2000-AP
tech-c:         TS2000-AP
abuse-c:        AN1055-AP
notify:         POH_CHOY_YEE@NLB.GOV.SG
remarks:        -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
mnt-lower:      MAINT-SG-NLB
mnt-routes:     MAINT-SG-NLB
mnt-by:         APNIC-HM
mnt-irt:        IRT-NLB-NON-SG
last-modified:  2026-08-13T02:25:06Z
source:         APNIC

irt:            IRT-NLB-NON-SG
address:        BLK 750D CHAI CHEE ROAD
address:
address:        SINGAPORE 469004
e-mail:         nis_help@nlb.gov.sg
abuse-mailbox:  nis_help@nlb.gov.sg
admin-c:        TS2000-AP
tech-c:         TS2000-AP
auth:           # Filtered
remarks:        nis_help@nlb.gov.sg was validated on 2026-05-20
mnt-by:         MAINT-SG-NLB
last-modified:  2026-07-17T09:07:45Z
source:         APNIC

organisation:   ORG-NLB1-AP
org-name:       National Library Board
org-type:       LIR
country:        SG
address:        Blk750D Chai Chee Road
address:        Technopark @ ChaiChee # 03-01/02
phone:          +65-6704-1057
fax-no:         +65-6446-7608
e-mail:         enquiry@nlb.gov.sg
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:54Z
source:         APNIC

role:           ABUSE NLBNONSG
country:        ZZ
address:        BLK 750D CHAI CHEE ROAD
address:
address:        SINGAPORE 469004
phone:          +000000000
e-mail:         nis_help@nlb.gov.sg
admin-c:        TS2000-AP
tech-c:         TS2000-AP
nic-hdl:        AN1055-AP
remarks:        Generated from irt object IRT-NLB-NON-SG
remarks:        nis_help@nlb.gov.sg was validated on 2026-05-20
abuse-mailbox:  nis_help@nlb.gov.sg
mnt-by:         APNIC-ABUSE
last-modified:  2026-05-20T02:20:37Z
source:         APNIC

person:         TAUFIK SUPAN
nic-hdl:        TS2000-AP
e-mail:         TAUFIK_SUPAN@NLB.GOV.SG
address:        Blk750D Chai Chee Road
address:        #03-01 Singapore 469004
country:        SG
phone:          +65-6704-1057
fax-no:         +65-6446-7608
mnt-by:         MAINT-SG-NLB
last-modified:  2017-02-26T23:41:04Z
source:         APNIC