AS55597 National Cancer Center

NCC-AS-KR-KR - National Cancer Center · registered in South Korea

IPv4 addresses1,0241 prefixes · <0.001% of announced IPv4

Rank in South Korea#519largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#38,103of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS55597 in ASN lookup Look up an IP in this network (49.50.0.1) All networks in South Korea

IPv4 prefixes

All 1 prefix, in address order.

49.50.0.0/22

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS38704#516 IDISPOWERTEL-AS-KR-KR - IDIS powertel1,024

AS45384#517 EXTKSURE-AS-KR-KR - Korea trade insurance corporation1,024

AS45407#518 DONGWON-AS-KR-KR - DONGWON INDUSTRIES1,024

AS55604#520 KOMSCO-AS-KR-KR - KOMSCO1,024

AS55610#521 MSAFER-AS-KR-KR - KAIT1,024

AS131802#522 NHLIFE-AS-KR-KR - NongHyup Life Insurance1,024

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