AS18258 Morgan Stanley Japan Limited

MS-JP-AS-AP - Morgan Stanley Japan Limited · registered in Japan

IPv4 addresses1,5366 prefixes · <0.001% of announced IPv4

Rank in Japan#499largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#26,505of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS18258 in ASN lookup Look up an IP in this network (205.228.96.1) All networks in Japan

IPv4 prefixes

All 6 prefixes, in address order.

205.228.96.0/24
205.228.104.0/24
205.228.108.0/24
205.228.118.0/24
205.228.123.0/24
209.8.176.0/24

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS63805#496 RIDC-NET - Ryobi Systems Co., Ltd.1,536

AS141757#497 ZJC-AS-AP - Zoho Japan Corporation1,536

AS18123#498 SEIRYO - INAOKI EDUCATIONAL INSTITUTION1,536

AS24280#500 HIS-TKIDC - Hitachi Systems, Ltd.1,536

AS131904#501 CYBERFEELINC-JP - Cyber Feel Inc.1,536

AS131966#502 INET-NET - I-NET CORP.1,536

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