Whois: 61.21.0.0/16
| IP Range: | 61.21.0.0 - 61.23.255.255 (197,608 total) |
| IP Location: |  Japan |
| ISP Company: | JCOM Co., Ltd.  |
| ISP ASN: | AS9824 |
| ISP Address: | Tokyo |
| ISP Website: | https://www.jcom.co.jp/english/ |
| ISP Country: | Japan, Chiyoda-ku |
61.21.0.0/16 domains
| # | Name | IPv4 | IPv6 | Rank | Updated |
|---|---|---|---|---|---|
| No results |
61.21.0.0/16 Nameservers
| # | NameServer | IPv4 | IPv6 | Updated |
|---|---|---|---|---|
| No results |
61.21.0.0/16 users
| # | IP | OS | Browser | Updated |
|---|---|---|---|---|
| 1 | 61.23.155.222 |  Mac OS X |
 Firefox 126.0 |
Last seen: 05.05.2026 |
| 2 | 61.23.94.124 | Mac OS X |
Firefox 132.0 |
Last seen: 04.05.2026 |
| 3 | 61.23.32.180 |  Windows 10 |
 Chrome 125.0 |
Last seen: 02.05.2026 |
