AS131937 JCV Joetsu Cable Vision
Announced Prefixes (BGP)
12total
10 IPv42 IPv6
IPv4 Addresses
Allocated (RIR)11,776
Announced (BGP)33,280
IPv6 Addresses
Allocated (RIR)1.5×10²⁹
Announced (BGP)1.5×10²⁹
Prefix Limit (IPv4)
20
Prefix Limit (IPv6)
10
Allocated
-
Announced Prefixes
(BGP)12|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 |
1-10 of 12
1 / 2
Allocated Prefixes
(RIR)6Prefix | Country | RIR | Status |
|---|---|---|---|
| 103.118.92.0/22 | 🇯🇵 JP | APNIC | allocated |
| 103.152.66.0/23 | 🇯🇵 JP | APNIC | allocated |
| 170.249.64.0/21 | 🇯🇵 JP | APNIC | allocated |
| 170.249.96.0/19 | 🇯🇵 JP | APNIC | allocated |
| 2403:4040::/32 | 🇯🇵 JP | APNIC | allocated |
| 2406:2b40::/32 | 🇯🇵 JP | 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 AS131937 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/131937Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/131937" | jq