Data as of Nov 15, 2026
121.50.52.0/24
No anonymizer space · no proxy exits in 30 daysIX-layers, Inc. · space held by Foresightwave INC.
Network & registry
Announced by
Covering announcement 121.50.48.0/21
- Prefix
- 121.50.48.0/21
- Announced by
- AS151374 IX-layers, Inc.
- Type
- Residential
- Proxy exits
- 6
- RPKI
- RPKI valid
- Netname
- FSWnetworks
- Registrant
- Foresightwave INC.
- RIR
- APNIC
Origin network
AS151374
JP
- Name
- IX-layers, Inc.
- Type
- Internet provider
- Registered
- Jun 5, 2023
- Domain
- iwk-works.com
- Website
- www.iwk-works.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 121.50.48.0/21
121.50.48.0/21
Routing history
- Pattern
- Reactivated
- First seen
- Nov 2006
- Current origin since
- Feb 2024 · 2.8 yr
- Origin networks
- 3
- Last change of origin
- Feb 2024
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 121.50.48.0/21 | AS151374 | /24 | APNIC | RPKI valid |
IRR
Route objects on 121.50.48.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS151374 | APNIC | Foresightwave INC. | MAINT-JP-FSW | Dec 10, 2023 |
Whois
Registration for this announcement
- Range
- 121.
50. 48. 0/ 21 - Netname
- FSWnetworks
- Registrant
- Foresightwave INC.
- Registrant country
- JP
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 7, 2024
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- JP
- Delegated
- Oct 5, 2006
- Status
- assigned
Report abuse
Abuse contact
- tsujii@
foresightwave. net - Name
- ABUSE FSWJP
- Handle
- AF487-AP