AS17576 National Research Foundation of Korea

KOSEF-AS-KR-KR - National Research Foundation of Korea · registered in South Korea

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in South Korea#619largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#50,050of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS17576 in ASN lookup Look up an IP in this network (203.253.232.1) All networks in South Korea

IPv4 prefixes

All 2 prefixes, in address order.

203.253.232.0/24
221.158.73.0/24

Other ASNs named National Research Foundation of Korea

1 other network uses the same organisation name; together with AS17576 they announce 1,024 IPv4 addresses.

ASNNameIPv4 addresses

AS17591KRFNET-AS-KR-KR - National Research Foundation of Korea KR512

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS10173#616 KSNET-AS-KR - KSNET.Inc512

AS10191#617 SGMF-AS-KR-KR - SEEGENE MEDICAL FOUNDATION512

AS10193#618 BUSANBANK-AS-KR-KR - BUSANBANK512

AS17582#620 KIC-AS-KR-KR - Korea Investment Corporation512

AS17585#621 PPS-AS-KR-KR - Public Procurement Service The Republic of Korea512

AS17588#622 DAEGUBANK-AS-KR-KR - IM Bank512

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