Autonomous System
AS18097 D.C.N. Corporation
ISPActiveJapanAPNIC
AS18097 (DCN) is an ISP network operated by D.C.N. Corporation in Japan, registered with APNIC. It has 19 IPv4 prefixes with 19,968 addresses and 1 IPv6 prefix, which makes it the 6,868th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses19,968in 19 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#6,868of 82,200 active ASNs
Details
OrganizationD.C.N. Corporation
AS nameDCN
Websitedcn.ad.jp
Country Japan (JP)
Network typeISP
RegistryAPNIC
Abuse contacthostmaster@nic.ad.jp
Registered—
Last updated2024-10-03
IPv4 prefixes
19 prefixes · 19,968 addresses| Network | Addresses | First – last address |
|---|---|---|
| 219.105.32.0/20 | 4,096 | 219.105.32.0 – 219.105.47.255 |
| 119.15.144.0/21 | 2,048 | 119.15.144.0 – 119.15.151.255 |
| 27.109.120.0/22 | 1,024 | 27.109.120.0 – 27.109.123.255 |
| 45.113.172.0/22 | 1,024 | 45.113.172.0 – 45.113.175.255 |
| 103.36.140.0/22 | 1,024 | 103.36.140.0 – 103.36.143.255 |
| 103.53.96.0/22 | 1,024 | 103.53.96.0 – 103.53.99.255 |
| 103.83.24.0/22 | 1,024 | 103.83.24.0 – 103.83.27.255 |
| 121.100.56.0/22 | 1,024 | 121.100.56.0 – 121.100.59.255 |
| 121.100.60.0/22 | 1,024 | 121.100.60.0 – 121.100.63.255 |
| 123.108.84.0/22 | 1,024 | 123.108.84.0 – 123.108.87.255 |
| 210.189.176.0/22 | 1,024 | 210.189.176.0 – 210.189.179.255 |
| 210.189.180.0/22 | 1,024 | 210.189.180.0 – 210.189.183.255 |
| 210.189.184.0/22 | 1,024 | 210.189.184.0 – 210.189.187.255 |
| 210.189.188.0/22 | 1,024 | 210.189.188.0 – 210.189.191.255 |
| 216.179.198.0/23 | 512 | 216.179.198.0 – 216.179.199.255 |
| 153.124.232.0/24 | 256 | 153.124.232.0 – 153.124.232.255 |
| 153.124.233.0/24 | 256 | 153.124.233.0 – 153.124.233.255 |
| 153.124.234.0/24 | 256 | 153.124.234.0 – 153.124.234.255 |
| 153.124.235.0/24 | 256 | 153.124.235.0 – 153.124.235.255 |
219.105.32.0/20 119.15.144.0/21 27.109.120.0/22 45.113.172.0/22 103.36.140.0/22 103.53.96.0/22 103.83.24.0/22 121.100.56.0/22 121.100.60.0/22 123.108.84.0/22 210.189.176.0/22 210.189.180.0/22 210.189.184.0/22 210.189.188.0/22 216.179.198.0/23 153.124.232.0/24 153.124.233.0/24 153.124.234.0/24 153.124.235.0/24
IPv6 prefixes
1 prefix- 2402:c400::/32
2402:c400::/32
Query AS18097 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=AS18097&key=YOUR_API_KEY"Any address in its prefixes resolves to AS18097, with or without a key:
curl "https://api.ipapi.is/?q=219.105.32.1"Largest networks in Japan
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