$ query “AS18401” --type=asn → 1 result(s)
AS18401 · AS18401-AS
DAEGU UNIVERSITY
AS18401 is operated by DAEGU UNIVERSITY and serves as an educational/research stub network, registered in South Korea. The system announces a respectable 27 136 IPv4 addresses. Its primary geographic footprint is in South Korea. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇰🇷 South Korea
- 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
- April 29, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 23 / 5
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 27 136
- Largest IPv4 Prefix
- /18 (16 384 addresses)
- Geolocated Countries
- 🇰🇷 South Korea (33 280 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Degree
- 2 unique BGP neighbors
- Reach
- 0 networks in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (23 total)
- 203.244.128.0/18 (16 384 addresses (/18 prefix))
- 203.207.16.0/20 (4 096 addresses (/20 prefix))
- 220.149.0.0/20 (4 096 addresses (/20 prefix))
- 112.137.176.0/21 (2 048 addresses (/21 prefix))
- 203.241.214.0/23 (512 addresses (/23 prefix))