AS139255 U-NEXT-AS-AP U-NEXT Co.,Ltd.
🇯🇵Org handle: ORG-UC3-AP
U-NEXT Co.,Ltd.
APNICallocated
Announced Prefixes (BGP)
2total
2 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)512
Announced (BGP)512
IPv6 Addresses
Allocated (RIR)2.4×10²⁴
Announced (BGP)0
Announced Prefixes
(BGP)2|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | APNIC | 2026-10-11 | |
| Valid | APNIC | 2026-10-11 |
Allocated Prefixes
(RIR)2Prefix | Country | RIR | Status |
|---|---|---|---|
| 103.140.112.0/23 | 🇯🇵 JP | APNIC | assigned |
| 2001:df0:bb80::/47 | 🇯🇵 JP | APNIC | assigned |
All 2 announced prefixes of AS139255 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS139255 hands its own prefixes to: transit providers, or peers at an exchange.
- AS2497IIJ Internet Initiative Japan2
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 AS139255 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/139255Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/139255" | jq