AS4721 is an AS number in Japan assigned to JCOM Co., Ltd..

OrganizationJCOM Co., Ltd.
Registered nameJCN
CountryJapan (JP)
IPv4 addresses631,808
IPv4 ranges54
IPv6 ranges1
RegistrationLook up the holder and the abuse contact in IP Lookup

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IPv4 address ranges (largest 20)

Range (CIDR)AddressesCheck
118.86.0.0/15 131,072 Check if your IP is in this range
14.193.0.0/16 65,536 Check if your IP is in this range
118.83.0.0/16 65,536 Check if your IP is in this range
111.90.0.0/17 32,768 Check if your IP is in this range
122.255.128.0/17 32,768 Check if your IP is in this range
112.137.64.0/18 16,384 Check if your IP is in this range
114.134.192.0/18 16,384 Check if your IP is in this range
116.70.128.0/18 16,384 Check if your IP is in this range
175.41.64.0/18 16,384 Check if your IP is in this range
220.208.64.0/18 16,384 Check if your IP is in this range
221.132.128.0/18 16,384 Check if your IP is in this range
61.203.224.0/19 8,192 Check if your IP is in this range
110.232.0.0/19 8,192 Check if your IP is in this range
114.198.192.0/19 8,192 Check if your IP is in this range
123.98.224.0/19 8,192 Check if your IP is in this range
180.92.32.0/19 8,192 Check if your IP is in this range
180.149.160.0/19 8,192 Check if your IP is in this range
182.50.192.0/19 8,192 Check if your IP is in this range
203.89.32.0/19 8,192 Check if your IP is in this range
203.124.64.0/19 8,192 Check if your IP is in this range

AS numbers of a similar size

About the data

Compiled by this site from publicly available internet registry assignment information and IP address range data. The data date is the build date of the data when the content of this page last changed. Adjacent ranges are merged and expressed as CIDR blocks, so they may differ from the routes actually announced.

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