AS23713 Internet Systems Consortium, Inc.

ISC-SEL1 - Internet Systems Consortium, Inc. · registered in South Korea

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in South Korea#761largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#64,505of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS23713 in ASN lookup Look up an IP in this network (202.41.145.1) All networks in South Korea

IPv4 prefixes

All 1 prefix, in address order.

202.41.145.0/24

Other ASNs named Internet Systems Consortium, Inc.

6 other networks use the same organisation name; together with AS23713 they announce 37,120 IPv4 addresses.

ASNNameIPv4 addresses

AS1280ISC-AS-1280 - Internet Systems Consortium, Inc. US23,296

AS30133ISC-F-AS - Internet Systems Consortium, Inc. US9,984

AS27321ISC-F-AS - Internet Systems Consortium, Inc. US2,048

AS30132ISC-F-AS - Internet Systems Consortium, Inc. US768

AS3557ISC-AS - Internet Systems Consortium, Inc. US512

AS33071ISC-F-AS - Internet Systems Consortium, Inc. US256

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS23574#758 KISPRICING-AS-KR-KR - KISPricing256

AS23586#759 KCUE-AS-KR-KR - Korean Council for University Education256

AS23590#760 IBKC-AS-KR-KR - IBKCapital256

AS23743#762 KOMIPO1-AS-KR-KR - KOREA MIDLAND POWER256

AS23972#763 KEBIS-AS-KR-KR - HANA INVESTOR SERVICES256

AS24509#764 Xpedite-AS-KR - Xpedite Systems Electronic document distribution and data messaging service provider Seoul, Korea256

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