Data as of Nov 7, 2026
210.121.21.0/24
1 residential-proxy exit · 30 daysCCS · space held by Sejong Networks
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Always-on exits
1
100% of its exits
Providers
5
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
774 observations
Proxy providers listing exits
- EnigmaProxy
- NovaProxy
- Proxiware
- ProxyEmpire
- VantageProxies
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 210.121.0.0/17 since May 2005 | AS9848 | Internet provider | 74 5 always on | Sejong Networks |
Network & registry
Announced by
Covering announcement 210.121.16.0/21
- Prefix
- 210.121.16.0/21
- Announced by
- AS45374 CCS
- Type
- Residential
- Proxy exits
- 12
- Always-on exits
- 2
- RPKI
- No RPKI
- Netname
- SEJONG-KR
- Registrant
- Sejong Networks
- RIR
- APNIC
Origin network
AS45374
KR
- Name
- CCS
- Type
- Internet provider
- Registered
- Aug 19, 2008
- Domain
- ccs.co.kr
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
210.121.16.0/21
Routing history
- Pattern
- Stable
- First seen
- Sep 2013
- Current origin since
- Sep 2013 · 13 yr
- Origin networks
- 1
IRR
Route objects on 210.121.16.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS45374 | RADB | CCS-AS-KR | MAINT-AS9318 | Apr 3, 2024 |
Whois
Registration for this announcement
- Range
- 210.
121. 0. 0/ 17 - Netname
- SEJONG-KR
- Registrant
- Sejong Networks
- Registrant country
- KR
- Organization
- Sejong Networks
- Org country
- KR
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Maintainer
- MNT-KRNIC-AP
- RIR
- APNIC
- Country
- KR
- Delegated
- Nov 26, 1996
- Status
- assigned
Report abuse
Abuse contact
- irt@
nic. or. kr - Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR