Data as of Nov 6, 2026
203.228.136.0/24
No anonymizer space · no proxy exits in 30 daysHCN Dongjak · space held by Sejong Networks
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.228.128.0/18 since May 2005 | AS4670 | Residential | 2 | Sejong Networks | |
| 203.228.128.0/17 since May 2005 | AS4670 | Residential | 4 | Sejong Networks |
Network & registry
Origin network
AS7562
KR
- Name
- HCN Dongjak
- Type
- Internet provider
- Registered
- May 13, 1997
- Domain
- hcn.co.kr
- Website
- www.hcn.co.kr
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 2007
- Current origin since
- Mar 2011 · 16 yr
- Origin networks
- 2
- Last change of origin
- Mar 2011
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 203.
228. 128. 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
- Apr 23, 1996
- Status
- assigned
Report abuse
Abuse contact
- irt@
nic. or. kr - Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR