$ query “AS9318” --type=asn → 1 result(s)

AS9318 · SKB-AS

SK Broadband Co Ltd

AS9318 is run by SK Broadband Co Ltd and is a major transit provider, registered in South Korea. The system announces a whopping 15.3 million IPv4 addresses (0.41% of routable IPv4 space), including a /11, and supports IPv6. The bulk of its IP address space is in South Korea, with additional presence in China and the United Kingdom, and smaller footprints in 4 additional countries.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Space Overlord — Over 10 million IPv4 addresses
  • #2 in South Korea — Top 10 by reach within country

Basic Information

Country
🇰🇷 South Korea
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Last Changed
March 04, 2026
Last Seen
August 26, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
840 / 286
IPv6 Prefixes (raw / aggregated)
3 / 3
IPv4 Addresses
15 286 784
Largest IPv4 Prefix
/11 (2 097 152 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇰🇷 South Korea (27 877 888 IPs), 🇨🇳 China (18 176 IPs), 🇬🇧 United Kingdom (1 024 IPs) and 4 more
Prefix Changed
August 19, 2026

Reputation

Reputation
Good — 137 flagged IPs out of 15 286 784 total (0.00%)
Open Proxies
2 known open proxies in this network

Connectivity Summary

Upstream Providers
4 upstreams providing transit
Peers
148 networks exchanging traffic without transit
Downstream Customers
393 downstreams buying transit
Unclassified
10 unclassified BGP neighbors
Degree
555 unique BGP neighbors
Reach
37 775 networks in customer cone

Upstream Providers (4)

  • AS6939 — HURRICANE
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS701 — UUNET (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (840 total)

  • 1.224.0.0/11 (2 097 152 addresses (/11 prefix))
  • 58.224.0.0/12 (1 048 576 addresses (/12 prefix))
  • 39.112.0.0/12 (1 048 576 addresses (/12 prefix))
  • 175.112.0.0/12 (1 048 576 addresses (/12 prefix))
  • 218.232.0.0/13 (524 288 addresses (/13 prefix))
  • 58.120.0.0/13 (524 288 addresses (/13 prefix))
  • 222.232.0.0/13 (524 288 addresses (/13 prefix))
  • 118.216.0.0/13 (524 288 addresses (/13 prefix))
  • 219.248.0.0/13 (524 288 addresses (/13 prefix))
  • 110.8.0.0/13 (524 288 addresses (/13 prefix))
  • 211.200.0.0/13 (524 288 addresses (/13 prefix))
  • 211.208.0.0/13 (524 288 addresses (/13 prefix))
  • 180.64.0.0/13 (524 288 addresses (/13 prefix))
  • 218.48.0.0/13 (524 288 addresses (/13 prefix))
  • 114.200.0.0/13 (524 288 addresses (/13 prefix))
  • 116.120.0.0/13 (524 288 addresses (/13 prefix))
  • 124.136.0.0/14 (262 144 addresses (/14 prefix))
  • 211.176.0.0/14 (262 144 addresses (/14 prefix))
  • 221.140.0.0/14 (262 144 addresses (/14 prefix))
  • 123.212.0.0/14 (262 144 addresses (/14 prefix))
  • 219.240.0.0/15 (131 072 addresses (/15 prefix))
  • 61.254.0.0/15 (131 072 addresses (/15 prefix))
  • 211.186.0.0/15 (131 072 addresses (/15 prefix))
  • 211.244.0.0/15 (131 072 addresses (/15 prefix))
  • 124.2.0.0/15 (131 072 addresses (/15 prefix))
  • 211.108.0.0/15 (131 072 addresses (/15 prefix))
  • 61.98.0.0/15 (131 072 addresses (/15 prefix))
  • 221.138.0.0/15 (131 072 addresses (/15 prefix))
  • 218.38.0.0/15 (131 072 addresses (/15 prefix))
  • 121.124.0.0/15 (131 072 addresses (/15 prefix))
  • 211.58.0.0/15 (131 072 addresses (/15 prefix))
  • 211.110.0.0/16 (65 536 addresses (/16 prefix))
  • 61.253.0.0/16 (65 536 addresses (/16 prefix))
  • 123.111.0.0/16 (65 536 addresses (/16 prefix))
  • 211.243.0.0/16 (65 536 addresses (/16 prefix))
  • 211.49.0.0/16 (65 536 addresses (/16 prefix))
  • 61.105.0.0/16 (65 536 addresses (/16 prefix))
  • 158.44.0.0/16 (65 536 addresses (/16 prefix))
  • 211.44.0.0/16 (65 536 addresses (/16 prefix))
  • 124.111.0.0/16 (65 536 addresses (/16 prefix))
  • 211.117.0.0/16 (65 536 addresses (/16 prefix))
  • 61.101.0.0/17 (32 768 addresses (/17 prefix))
  • 211.33.0.0/17 (32 768 addresses (/17 prefix))
  • 211.37.0.0/17 (32 768 addresses (/17 prefix))
  • 210.205.128.0/17 (32 768 addresses (/17 prefix))
  • 211.52.128.0/17 (32 768 addresses (/17 prefix))
  • 218.36.128.0/17 (32 768 addresses (/17 prefix))
  • 210.221.0.0/17 (32 768 addresses (/17 prefix))
  • 210.117.0.0/17 (32 768 addresses (/17 prefix))
  • 210.219.128.0/18 (16 384 addresses (/18 prefix))

IPv6 Prefixes (3 total)

  • 2001:290::/32
  • 2001:378::/32
  • 2001:df1:6003::/48