Data as of Nov 10, 2026
221.133.48.0/21
4 residential-proxy exits · 30 daysINet Technologies Co., Ltd.
Residential-proxy exits
Proxy exits
4
0.20% of its addresses · 30 days
Spread
2 of 8
/24s with at least one exit
Providers
2
selling exits here
Oct 11, 2026 – Nov 8, 2026
Exits seen per day
37 observations
- Hosting
- Unknown
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 221.133.55.0/24 | 0 | 3 | |
| 221.133.54.0/24 | 0 | 1 |
Proxy providers listing exits
- Thordata
- ThunderProxy
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 221.133.54.0/24 since Oct 2025 | AS9712 | Unknown | 1 | INet Technologies Co., Ltd. | |
| 221.133.55.0/24 since Oct 2011 | AS55615 | Business | 3 | DOUZONEBIZON |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 221.133.48.0/24 | 256 | KPIN | INet Technologies Co., Ltd. | ALLOCATED PORTABLE | — | hostmaster@ |
| 221.133.49.0/24 | 256 | KPIN | INet Technologies Co., Ltd. | ALLOCATED PORTABLE | — | hostmaster@ |
| 221.133.50.0/24 | 256 | KPIN | INet Technologies Co., Ltd. | ALLOCATED PORTABLE | — | hostmaster@ |
| 221.133.51.0/24 | 256 | KPIN | INet Technologies Co., Ltd. | ALLOCATED PORTABLE | — | hostmaster@ |
| 221.133.52.0/24 | 256 | KPIN | INet Technologies Co., Ltd. | ALLOCATED PORTABLE | — | hostmaster@ |
| 221.133.53.0/24 | 256 | KPIN | INet Technologies Co., Ltd. | ALLOCATED PORTABLE | — | hostmaster@ |
| 221.133.54.0/24 | 256 | KPIN | INet Technologies Co., Ltd. | ALLOCATED PORTABLE | — | hostmaster@ |
| 221.133.55.0/24 | 256 | DOUZONE | DOUZONEBIZON | ALLOCATED PORTABLE | — | hostmaster@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
2,048 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Unknown | 1,792 | 88% | 7 | |
| Hosting | 256 | 13% | 1 |
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS9712
KR
- Name
- INet Technologies Co., Ltd.
- Registered
- Oct 5, 1999
- Domain
- inettech.co.kr
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2007
- Current origin since
- Mar 2007 · 20 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS9712 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Sep 15, 2010 |
Whois
Registration for this announcement
221.133.48.0/21 spans several registrations: 8 records are listed under Registrations.
- Registrant country
- AU
- RIR
- APNIC
- Country
- KR
- Delegated
- Aug 3, 2006
- Status
- assigned