Data as of Nov 8, 2026
219.117.54.0/23
No anonymizer space · no proxy exits in 30 daysKyushu Tele Communications Company · space held by Japan Network Information Center
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 219.117.48.0/20 since May 2005 | AS18092 | Residential | 9 2 always on | 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 219.117.52.0/22
- Prefix
- 219.117.52.0/22
- Announced by
- AS18092 Kyushu Tele Communications Company
- Type
- Residential
- RPKI
- No RPKI
- Netname
- CSF-NET
- Registrant
- Sasebo Cable Television
- RIR
- APNIC
IPv4 market
Holder
- Organization
- Japan Network Information Center
- Range
- 219.
96. 0. 0/ 11 - Registration type
- ALLOCATED PORTABLE
Origin network
AS18092
JP
- Name
- Kyushu Tele Communications Company
- Type
- Internet provider
- Registered
- Dec 27, 2001
- Domain
- csf.ne.jp
- Website
- csf.ne.jp/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
219.117.52.0/22
Routing history
- Pattern
- Stable
- First seen
- May 2008
- Current origin since
- May 2008 · 18 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 219.
117. 52. 0/ 22 - Netname
- CSF-NET
- Registrant
- Sasebo Cable Television
- Registrant country
- JP
- Organization
- Sasebo Cable Television
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Aug 8, 2008
- RIR
- APNIC
- Country
- JP
- Delegated
- Mar 7, 2002
- Status
- assigned