Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS18402

Announcement observedAPNIC

NLB-AS-SG-AP - NATIONAL LIBRARY BOARD · NLB-AS-SG-AP

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active9/30/2026, 22:14:33Snapshot expired

View network topology RDAP registration

ASN: AS18402
Registration country: Singapore
Name: NLB-AS-SG-AP - NATIONAL LIBRARY BOARD
Abbreviation: NLB-AS-SG-AP
Registration date: 9/4/2008, 06:40:34
Status: Announcement observed
RIR: APNIC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
203.78.11.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	9/30/2026, 16:00:00	✓	×	Historical record
203.78.12.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	9/30/2026, 16:00:00	✓	×	Historical record
203.78.13.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	9/30/2026, 16:00:00	✓	×	Historical record
203.78.14.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	9/30/2026, 16:00:00	✓	×	Historical record
203.78.15.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	9/30/2026, 16:00:00	✓	×	Historical record
203.78.9.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	9/30/2026, 16:00:00	✓	×	Historical record

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: NLB-AS-SG-AP - NATIONAL LIBRARY BOARD
RIR: APNIC
Registration country: Singapore
Registration date: 9/4/2008, 06:40:34
Abuse contact: nis_help@nlb.gov.sg

Snapshot trend

9/30/2026, 22:14:336 v41 v62 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap