Data as of Nov 13, 2026
219.103.63.0/24
No anonymizer space · no proxy exits in 30 daysKasaoka Cable Vision Co,LTD. · space held by Japan Network Information Center
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 219.96.0.0/11 | 2,097,152 | JPNIC-NET-JP | Japan Network Information Center | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
Announced by
Covering announcement 219.103.48.0/20
- Prefix
- 219.103.48.0/20
- Announced by
- AS17958 Kasaoka Cable Vision Co,LTD.
- Type
- Residential
- Proxy exits
- 39
- Always-on exits
- 7
- RPKI
- RPKI valid
- Netname
- KCV-CIDR-BLK-JP
- Registrant
- Kasaoka Cable Vision LIMITED
- RIR
- APNIC
IPv4 market
Holder
- Organization
- Japan Network Information Center
- Range
- 219.
96. 0. 0/ 11 - Registration type
- ALLOCATED PORTABLE
Origin network
AS17958
JP
- Name
- Kasaoka Cable Vision Co,LTD.
- Type
- Internet provider
- Registered
- Sep 21, 2001
- Domain
- yumenet.jp
- Website
- yumenet.jp/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 219.103.48.0/20
219.103.48.0/20
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 219.103.48.0/20 | AS17958 | /32 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 219.
103. 48. 0/ 20 - Netname
- KCV-CIDR-BLK-JP
- Registrant
- Kasaoka Cable Vision LIMITED
- Registrant country
- JP
- Organization
- Kasaoka Cable Vision LIMITED
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Aug 29, 2009
- RIR
- APNIC
- Country
- JP
- Delegated
- Mar 7, 2002
- Status
- assigned
Report abuse
Abuse contact
- nic@
nsg. kcv. ne. jp