AS151386 NHN Cloud Japan Corporation

NCJ-NET - NHN Cloud Japan Corporation · registered in Japan

IPv4 addresses18,6885 prefixes · <0.001% of announced IPv4

Rank in Japan#256largest network in JP by IPv4 space, of 724 · 0.01% of JP

Rank worldwide#6,379of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS151386 in ASN lookup Look up an IP in this network (133.223.15.1) All networks in Japan

IPv4 prefixes

All 5 prefixes, in address order.

133.223.15.0/24
133.223.16.0/20
133.223.32.0/19
133.223.64.0/20
133.223.80.0/21

Other ASNs named NHN Cloud Japan Corporation

1 other network uses the same organisation name; together with AS151386 they announce 30,208 IPv4 addresses.

ASNNameIPv4 addresses

AS17661NHN-JAPAN - NHN Cloud Japan Corporation JP11,520

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS17516#253 NTTCOMWARE - NTT COMWARE CORPORATION19,456

AS17957#254 CTS - SOUTH TOKYO CABLETELEVISION19,456

AS59109#255 HITCLOUD - Hitachi,Ltd., Managed & Platform Services Business Division19,456

AS10011#257 ADVAN - advanscope inc.18,432

AS17936#258 CTK - Cable Television Kani Co.,Inc.18,432

AS23627#259 UCVNET - UEDA CABLE VISION CO.,LTD.18,432

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