18402 NLB-AS-SG-AP NATIONAL LIBRARY BOARD, SG
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS9255 CONNECTPLUS-AS Singapore Telecom, SG
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 32829 AS18402 ORIGIN Originate: 1280 /21.68 Transit: 0 /0.00 NLB-AS-SG-AP NATIONAL LIBRARY BOARD, SG
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 21271 AS18402 NLB-AS-SG-AP NATIONAL LIBRARY BOARD, SG 5 2 1 4 1 20.00% Prefix AS Path Aggregation Suggestion 203.78.11.0/24 6939 7473 3758 9255 18402 18402 18402 18402 18402 18402 18402 18402 18402 18402 18402 203.78.12.0/24 6939 7473 3758 9255 18402 203.78.13.0/24 6939 7473 3758 9255 18402 18402 18402 18402 18402 18402 18402 18402 18402 18402 18402 203.78.14.0/23 6939 7473 3758 9255 18402 + Announce - aggregate of 203.78.14.0/24 (6939 7473 3758 9255 18402) and 203.78.15.0/24 (6939 7473 3758 9255 18402) 203.78.14.0/24 6939 7473 3758 9255 18402 - Withdrawn - aggregated with 203.78.15.0/24 (6939 7473 3758 9255 18402) 203.78.15.0/24 6939 7473 3758 9255 18402 - Withdrawn - aggregated with 203.78.14.0/24 (6939 7473 3758 9255 18402)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS18402 7 More Specifics 8 Total Advertisements NLB-AS-SG-AP NATIONAL LIBRARY BOARD, SG
203.78.8.0/24 203.78.8.0/21
203.78.9.0/24 203.78.8.0/21
203.78.11.0/24 203.78.8.0/21
203.78.12.0/24 203.78.8.0/21
203.78.13.0/24 203.78.8.0/21
203.78.14.0/24 203.78.8.0/21
203.78.15.0/24 203.78.8.0/21
whois: 402603
IANA has recorded AS18402 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS18402\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS17653 - AS18431'
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: 6 Cordelia Street
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: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS18402'
% Abuse contact for 'AS18402' is 'nis_help@nlb.gov.sg'
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
mnt-lower: MAINT-SG-NLB
mnt-routes: MAINT-SG-NLB
mnt-by: APNIC-HM
mnt-irt: IRT-NLB-NON-SG
last-modified: 2020-11-11T02:42:34Z
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: 2026-05-20T02:20:27Z
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
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)