Autonomous System

AS55388 ASJ INC.

ISPActiveJapanJPNIC

AS55388 (ASJ) is an ISP network operated by ASJ INC. in Japan, registered with JPNIC. It has 2 IPv4 prefixes with 12,288 addresses and 1 IPv6 prefix, which makes it the 9,227th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses12,288in 2 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#9,227of 82,200 active ASNs
Abuser scoreVery Low0.02% of its addresses flagged · method

Details

OrganizationASJ INC.
AS nameASJ
Websiteasj.ne.jp
Country Japan (JP)
Network typeISP
RegistryJPNIC
Abuse contact—
Registered—
Last updated2012-01-23

IPv4 prefixes

2 prefixes · 12,288 addresses
NetworkAddressesFirst – last address
219.118.192.0/198,192219.118.192.0 – 219.118.223.255
27.127.240.0/204,09627.127.240.0 – 27.127.255.255

IPv6 prefixes

1 prefix
  • 2405:2a00::/32

Query AS55388 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS55388&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS55388, with or without a key:

curl "https://api.ipapi.is/?q=219.118.192.1"

Largest networks in Japan

AS17676 SoftBank Mobile Corp.49,061,888 IPv4 addressesAS4713 NTT DOCOMO BUSINESS,Inc.28,624,896 IPv4 addressesAS2516 KDDI CORPORATION18,152,448 IPv4 addressesAS9824 JCOM Co., Ltd.10,315,776 IPv4 addressesAS2907 Authoritative information regarding AS Number8,960,512 IPv4 addressesAS17506 UCOM Corp.5,508,096 IPv4 addresses