AS18402 NLB-AS-SG-AP NATIONAL LIBRARY BOARD

🇸🇬

Org handle: ORG-NLB1-AP

NATIONAL LIBRARY BOARD

APNICallocated

Announced Prefixes (BGP)

7total

6 IPv41 IPv6

IPv4 Addresses

Allocated (RIR)2,048

Announced (BGP)1,536

IPv6 Addresses

Allocated (RIR)1.2×10²⁴

Announced (BGP)1.2×10²⁴

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

allocated

Allocated

2002-12-31

Announced Prefixes

(BGP)7

Prefix	RPKI	IRR	Last Seen
203.78.9.0/24	Valid	APNICOther IRR	2026-10-11
203.78.11.0/24	No ROA	-	2026-10-11
203.78.12.0/24	No ROA	-	2026-10-11
203.78.13.0/24	No ROA	-	2026-10-11
203.78.14.0/24	No ROA	-	2026-10-11
203.78.15.0/24	No ROA	-	2026-10-11
2001:df0:301::/48	No ROA	-	2026-10-11

(RIR)2

Prefix	Country	RIR	Status
203.78.8.0/21	🇸🇬 SG	APNIC	assigned
2001:df0:301::/48	🇸🇬 SG	APNIC	assigned

(seen in AS paths)

Networks AS18402 hands its own prefixes to: transit providers, or peers at an exchange.

ASPA

No ASPA

External Links

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS18402 should publish an ASPA object
IPv4 transfers in the APNIC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/18402" | jq