AS131971 JPNIC-LAB Japan Network Information Center
Announced Prefixes (BGP)
12total
5 IPv47 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)2,048
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)7.9×10²⁸
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
50
Allocated
-
Announced Prefixes
(BGP)12|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | - | 2026-10-10 | |
| Valid | - | 2026-10-10 | |
| Invalid | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 | |
| Valid | - | 2026-10-10 | |
| Valid | - | 2026-10-10 | |
| Invalid | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 | |
| Valid | - | 2026-10-10 | |
| Valid | - | 2026-10-10 |
1-10 of 12
1 / 2
All 12 announced prefixes of AS131971 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS131971 hands its own prefixes to: transit providers, or peers at an exchange.
- AS2515Japan Network Information Center12
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 AS131971 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/131971Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/131971" | jq