Data as of Nov 9, 2026
103.144.123.0/24
No anonymizer space · no proxy exits in 30 daysTama Cable Network Co.,Ltd.
Network & registry
Announced by
Covering announcement 103.144.122.0/23
- Prefix
- 103.144.122.0/23
- Announced by
- AS131958 Tama Cable Network Co.,Ltd.
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- t-net-CIDR-BLK-JP
- Registrant
- Tama Cable Network Co.,Ltd
- RIR
- APNIC
Origin network
AS131958
JP
- Name
- Tama Cable Network Co.,Ltd.
- Type
- Internet provider
- Registered
- Aug 4, 2011
- Domain
- t-net.ne.jp
- Website
- www2.t-net.ne.jp/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 103.144.122.0/23
103.144.122.0/23
Routing history
- Pattern
- Stable
- First seen
- Jun 2020
- Current origin since
- Jun 2020 · 6.4 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 103.144.122.0/23 | AS131958 | /32 | APNIC | RPKI valid |
IRR
Route objects on 103.144.122.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS131958 | JPIRR | Tama Cable Network Co.,Ltd expire=12 | MAINT-AS131958 | Oct 1, 2025 |
Whois
Registration for this announcement
- Range
- 103.
144. 122. 0/ 23 - Netname
- t-net-CIDR-BLK-JP
- Registrant
- Tama Cable Network Co.,Ltd
- Registrant country
- JP
- Organization
- Tama Cable Network Co.,Ltd
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Oct 24, 2019
- RIR
- APNIC
- Country
- JP
- Delegated
- Oct 23, 2019
- Status
- assigned
Report abuse
Abuse contact
- noc@
tcnnet. co. jp