$ query “AS4766” --type=asn → 1 result(s)
AS4766 — KIXS-AS
Korea Telecom
AS4766 is a major transit provider operated by Korea Telecom, registered in South Korea. The network announces a whopping 47.2 million IPv4 addresses (1.27% of routable IPv4 space), including a /10. Supports IPv6.
- 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
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 2 118 / 647
- IPv6 Prefixes (raw / aggregated)
- 32 / 19
- IPv4 Addresses
- 47 195 648
- Largest IPv4 Prefix
- /10 (4 194 304 addresses)
- Largest IPv6 Prefix
- /29
- Geolocated Countries
- 🇰🇷 KR (715 IPs), 🇺🇸 US (37 IPs), 🇱🇹 LT (14 IPs), 🇹🇼 TW, 🇬🇧 GB, 🇦🇺 AU, 🇨🇳 CN, 🇳🇱 NL, 🇭🇰 HK, 🇺🇦 UA, 🇨🇮 CI, 🇿🇿 ZZ, 🇰🇵 KP, 🇫🇷 FR and 1 more
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Fair — 1 017 flagged IPs out of 47 195 648 total (0.00%)
- Open Proxies
- 28 known open proxies in this network
Connectivity Summary
- Upstream Providers
- 6 upstream autonomous systems providing transit
- Peers
- 103 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 556 downstream autonomous systems buying transit
- Degree
- 669 unique BGP neighbors (providers + customers + peers)
- Reach
- 14 835 — customer cone size measuring network influence
- Degree Rank
- #220
- Reach Rank
- #404
- Country Rank
- #2
Upstream Providers (6)
Prefix Lists
IPv4 Prefixes (2 118 total)
- 121.128.0.0/10 (4 194 304 addresses)
- 175.192.0.0/10 (4 194 304 addresses)
- 14.32.0.0/11 (2 097 152 addresses)
- 14.64.0.0/11 (2 097 152 addresses)
- 59.0.0.0/11 (2 097 152 addresses)
- 112.160.0.0/11 (2 097 152 addresses)
- 118.32.0.0/11 (2 097 152 addresses)
- 119.192.0.0/11 (2 097 152 addresses)
- 125.128.0.0/11 (2 097 152 addresses)
- 183.96.0.0/11 (2 097 152 addresses)
- 1.96.0.0/12 (1 048 576 addresses)
- 39.16.0.0/12 (1 048 576 addresses)
- 49.16.0.0/12 (1 048 576 addresses)
- 115.0.0.0/12 (1 048 576 addresses)
- 169.208.0.0/12 (1 048 576 addresses)
- 218.144.0.0/12 (1 048 576 addresses)
- 220.80.0.0/12 (1 048 576 addresses)
- 221.144.0.0/12 (1 048 576 addresses)
- 222.96.0.0/12 (1 048 576 addresses)
- 27.232.0.0/13 (524 288 addresses)
- 49.56.0.0/13 (524 288 addresses)
- 61.72.0.0/13 (524 288 addresses)
- 115.16.0.0/13 (524 288 addresses)
- 211.192.0.0/13 (524 288 addresses)
- 211.216.0.0/13 (524 288 addresses)
- 211.224.0.0/13 (524 288 addresses)
- 220.72.0.0/13 (524 288 addresses)
- 220.120.0.0/13 (524 288 addresses)
- 221.160.0.0/13 (524 288 addresses)
- 222.112.0.0/13 (524 288 addresses)
- 39.4.0.0/14 (262 144 addresses)
- 61.80.0.0/14 (262 144 addresses)
- 110.68.0.0/14 (262 144 addresses)
- 211.104.0.0/14 (262 144 addresses)
- 220.116.0.0/14 (262 144 addresses)
- 61.84.0.0/15 (131 072 addresses)
- 116.200.0.0/15 (131 072 addresses)
- 118.234.0.0/15 (131 072 addresses)
- 210.90.0.0/15 (131 072 addresses)
- 210.104.0.0/15 (131 072 addresses)
- 210.178.0.0/15 (131 072 addresses)
- 210.222.0.0/15 (131 072 addresses)
- 211.54.0.0/15 (131 072 addresses)
- 211.184.0.0/15 (131 072 addresses)
- 211.250.0.0/15 (131 072 addresses)
- 211.252.0.0/15 (131 072 addresses)
- 220.70.0.0/15 (131 072 addresses)
- 222.120.0.0/15 (131 072 addresses)
- 49.254.0.0/16 (65 536 addresses)
- 121.126.0.0/16 (65 536 addresses)
IPv6 Prefixes (32 total)
- 2400:140::/29
- 2400:f4::/30
- 2400:130::/30
- 2400:f2::/31
- 2400:e1::/32
- 2400:f1::/32
- 2400:134::/32
- 2400:148::/32
- 2400:156::/32
- 2400:0:840::/42
- 2400:0:820::/43
- 2400:0:810::/44
- 2400:0:611::/48
- 2400:12::/48
- 2400:32::/48
- 2400:103:c009::/48
- 2400:150:c009::/48
- 2400:160:c009::/48
- 2400:221:3002::/48