$ query “AS18158” --type=asn → 1 result(s)
AS18158 — CBNU-AS
CHUNGBUK NATIONAL UNIVERSITY
AS18158 is an educational stub network registered to CHUNGBUK NATIONAL UNIVERSITY, based in South Korea. The network announces a respectable 29 696 IPv4 addresses. 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
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 9 / 9
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 29 696
- Largest IPv4 Prefix
- /19 (8 192 addresses)
- Geolocated Countries
- 🇰🇷 KR (10 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 29 696 total (0.00%)
Connectivity Summary
- Upstream Providers
- 3 upstream autonomous systems providing transit
- Peers
- 0 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 0 downstream autonomous systems buying transit
- Degree
- 3 unique BGP neighbors (providers + customers + peers)
- Reach
- 0 — customer cone size measuring network influence
- Degree Rank
- #21 879
Upstream Providers (3)
Prefix Lists
IPv4 Prefixes (9 total)
- 203.255.64.0/19 (8 192 addresses)
- 210.115.160.0/19 (8 192 addresses)
- 114.71.112.0/20 (4 096 addresses)
- 210.125.144.0/20 (4 096 addresses)
- 113.198.136.0/21 (2 048 addresses)
- 113.198.144.0/22 (1 024 addresses)
- 113.198.176.0/22 (1 024 addresses)
- 113.198.134.0/23 (512 addresses)
- 113.198.148.0/23 (512 addresses)