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
Routing hygiene
Score 56/100 · High riskRPKI ROA coverage
14.3%
no RPKI invalid prefixes
IRR route objects
14.3%
5 prefixes registered for another origin
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
2
diversity 24/100
- 86% of announced prefixes (6 of 7) have no valid ROA
- 86% of announced prefixes (6 of 7) have no IRR route object for this ASN
- 5 prefixes registered in IRR route objects for another active network and not authorized by a ROA
- Routes concentrated on one upstream (86% of routes)
Based on 7 announced prefixes, updated daily (2026-10-12). How the score works · RPKI explained
Announced Prefixes
(BGP)7|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | APNICOther IRR | 2026-10-12 | |
| No ROA | - | 2026-10-12 | |
| No ROA | - | 2026-10-12 | |
| No ROA | - | 2026-10-12 | |
| No ROA | - | 2026-10-12 | |
| No ROA | - | 2026-10-12 | |
| No ROA | - | 2026-10-12 |
Allocated Prefixes
(RIR)2Prefix | Country | RIR | Status |
|---|---|---|---|
| 203.78.8.0/21 | 🇸🇬 SG | APNIC | assigned |
| 2001:df0:301::/48 | 🇸🇬 SG | APNIC | assigned |
ASPA
No ASPA
External Links
Learn more
- 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
Open https://api.ipctl.io/v1/asn/18402Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/18402" | jq