Autonomous System
AS17958 Kasaoka Cable Vision LIMITED
ISPActiveJapanAPNIC
AS17958 (KCV) is an ISP network operated by Kasaoka Cable Vision LIMITED in Japan, registered with APNIC. It has 7 IPv4 prefixes with 21,504 addresses and 1 IPv6 prefix, which makes it the 6,541st largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses21,504in 7 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#6,541of 82,200 active ASNs
Details
OrganizationKasaoka Cable Vision LIMITED
AS nameKCV
Websitekcv.ne.jp
Country Japan (JP)
Network typeISP
RegistryAPNIC
Abuse contacthostmaster@nic.ad.jp
Registered—
Last updated2024-08-23
IPv4 prefixes
7 prefixes · 21,504 addresses| Network | Addresses | First – last address |
|---|---|---|
| 133.226.160.0/20 | 4,096 | 133.226.160.0 – 133.226.175.255 |
| 157.112.160.0/20 | 4,096 | 157.112.160.0 – 157.112.175.255 |
| 218.40.96.0/20 | 4,096 | 218.40.96.0 – 218.40.111.255 |
| 219.103.48.0/20 | 4,096 | 219.103.48.0 – 219.103.63.255 |
| 180.178.80.0/21 | 2,048 | 180.178.80.0 – 180.178.87.255 |
| 220.247.184.0/21 | 2,048 | 220.247.184.0 – 220.247.191.255 |
| 103.2.96.0/22 | 1,024 | 103.2.96.0 – 103.2.99.255 |
133.226.160.0/20 157.112.160.0/20 218.40.96.0/20 219.103.48.0/20 180.178.80.0/21 220.247.184.0/21 103.2.96.0/22
IPv6 prefixes
1 prefix- 2401:a240::/32
2401:a240::/32
Query AS17958 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=AS17958&key=YOUR_API_KEY"Any address in its prefixes resolves to AS17958, with or without a key:
curl "https://api.ipapi.is/?q=133.226.160.1"Largest networks in Japan
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