Data as of Nov 9, 2026
112.137.156.0/23
No anonymizer space · no proxy exits in 30 daysKyushu Tele Communications Company
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 112.137.144.0/20 since Feb 2014 | AS18092 | Residential | 27 2 always on | Kyushu Tele Communications Company |
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 |
|---|---|---|---|---|---|---|
| 112.137.144.0/20 | 4,096 | CSF-NET | Kyushu Tele Communications Company | ALLOCATED PORTABLE | — | infome@ |
Network & registry
Announced by
Covering announcement 112.137.152.0/21
- Prefix
- 112.137.152.0/21
- Announced by
- AS18092 Kyushu Tele Communications Company
- Type
- Residential
- Proxy exits
- 12
- RPKI
- No RPKI
- Netname
- CSF-NET
- Registrant
- Kyushu Tele Communications Company
- RIR
- APNIC
Registry
Holder
- Organization
- Kyushu Tele Communications Company
- Range
- 112.
137. 144. 0/ 20 - 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
112.137.152.0/21
Routing history
- Pattern
- Stable
- First seen
- Feb 2009
- Current origin since
- Feb 2009 · 18 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 112.
137. 152. 0/ 21 - Netname
- CSF-NET
- Registrant
- Kyushu Tele Communications Company
- Registrant country
- JP
- Organization
- Kyushu Tele Communications Company
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Feb 8, 2009
- RIR
- APNIC
- Country
- JP
- Delegated
- Feb 6, 2009
- Status
- assigned