AS18183 NCREE National Center for Research on Earthquake Engineering
Announced Prefixes (BGP)
10total
5 IPv45 IPv6
IPv4 Addresses
Allocated (RIR)5,632
Announced (BGP)7,936
IPv6 Addresses
Allocated (RIR)1.5×10²⁹
Announced (BGP)1.5×10²⁹
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
20
Allocated
-
Announced Prefixes
(BGP)10|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | Other IRR | 2026-10-10 | |
| Valid | Other IRR | 2026-10-10 | |
| Valid | Other IRR | 2026-10-10 | |
| Valid | APNICOther IRR | 2026-10-10 | |
| Valid | Other IRR | 2026-10-10 | |
| Valid | Other IRR | 2026-10-10 | |
| Valid | - | 2026-10-10 | |
| Valid | - | 2026-10-10 | |
| Valid | - | 2026-10-10 | |
| Valid | APNICOther IRR | 2026-10-10 |
Allocated Prefixes
(RIR)5Prefix | Country | RIR | Status |
|---|---|---|---|
| 61.56.0.0/20 | 🇹🇼 TW | APNIC | assigned |
| 103.189.132.0/23 | 🇹🇼 TW | APNIC | allocated |
| 202.5.12.0/22 | 🇹🇼 TW | APNIC | assigned |
| 2001:4500::/32 | 🇹🇼 TW | APNIC | allocated |
| 2400:85a0::/32 | 🇹🇼 TW | APNIC | allocated |
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 AS18183 should publish an ASPA object
- IPv4 transfer marketTransfers published by all five RIRs
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/18183Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/18183" | jq