$ query “AS23799” --type=asn → 1 result(s)
AS23799 — NDA
National Defense Academy
AS23799 is an educational stub network operated by National Defense Academy, established in Japan. The network announces 1 024 IPv4 addresses. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇯🇵 Japan
- Category
- Education/Research
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- March 04, 2026
- Last Seen
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 4 / 2
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 1 024
- Largest IPv4 Prefix
- /23 (512 addresses)
- Geolocated Countries
- 🇯🇵 JP (2 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 1 024 total (0.00%)
Connectivity Summary
- Upstream Providers
- 1 upstream autonomous systems providing transit
- Peers
- 0 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 0 downstream autonomous systems buying transit
- Degree
- 1 unique BGP neighbors (providers + customers + peers)
- Reach
- 0 — customer cone size measuring network influence
- Degree Rank
- #56 410
Upstream Providers (1)
- AS2500 — WIDE-BB
Prefix Lists
IPv4 Prefixes (4 total)
- 202.25.82.0/23 (512 addresses)
- 202.25.84.0/23 (512 addresses)