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AS18305 POSCO DX

POSNET-KR - POSCO DX · registered in South Korea

IPv4 addresses75,26444 prefixes · 0.002% of announced IPv4
Rank in South Korea#74largest network in KR by IPv4 space, of 853 · 0.07% of KR
Rank worldwide#2,289of 79,396 networks with IPv4
IPv6noneno IPv6 routes announced
CountrySouth Korea869 ASNs registered there
Open AS18305 in ASN lookup Look up an IP in this network (1.209.29.1) All networks in South Korea

IPv4 prefixes

All 44 prefixes, in address order.

  • 1.209.29.0/24
  • 1.209.181.0/24
  • 1.209.182.0/23
  • 1.209.185.0/24
  • 39.121.111.0/24
  • 116.123.216.0/24
  • 116.124.169.0/24
  • 116.127.24.0/24
  • 118.129.142.0/23
  • 119.202.117.0/24
  • 175.202.208.0/24
  • 175.202.211.0/24
  • 175.202.212.0/23
  • 203.231.144.0/22
  • 203.231.148.0/23
  • 203.231.151.0/24
  • 203.238.192.0/20
  • 203.238.210.0/24
  • 203.238.219.0/24
  • 203.238.220.0/23
  • 203.238.222.0/23
  • 203.241.0.0/19
  • 203.244.32.0/19
  • 203.244.64.0/19
  • 203.245.128.0/17
  • 203.246.184.0/22
  • 203.246.188.0/23
  • 210.105.154.0/24
  • 210.108.50.0/24
  • 210.108.199.0/24
  • 210.109.175.0/24
  • 210.113.156.0/23
  • 211.32.161.0/24
  • 211.32.162.0/24
  • 211.32.165.0/24
  • 211.60.10.0/24
  • 211.169.135.0/24
  • 211.171.31.0/24
  • 211.171.182.0/24
  • 211.171.185.0/24
  • 211.171.186.0/23
  • 211.229.145.0/24
  • 222.104.91.0/24
  • 222.104.92.0/24

Similar-sized networks in South Korea

ASNNameIPv4 addresses
AS9762#71 HCN-AS-KR - kt HCN Co.,Ltd.76,544
AS9273#72 SICC-AS-KR - ITCENENTEC CO.,LTD.76,032
AS17597#73 SKB-SAEROMNET-AS-KR-KR - SK Broadband Co Ltd75,776
AS17598#75 YBNTV-AS-KR-KR - LG HelloVision Corp.74,496
AS9686#76 SKKUNET-AS-KR - SungKyunKwan University (SKKU)73,728
AS9698#77 YOUNGDOONG-AS-KR-KR - LG HelloVision Corp.70,912

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources