Data as of Nov 9, 2026
203.235.128.0/18
No anonymizer space · no proxy exits in 30 daysSejong Networks
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 203.235.128.0/22 since Jun 2023 | AS9973 | Unknown | Sejong Networks | |
| 203.235.144.0/20 since Mar 2018 | AS9848 | Internet provider | Sejong Networks | |
| 203.235.185.0/24 since May 2005 | AS9848 | Internet provider | Sejong Networks |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
16,384 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 15,360 | 94% | 5 | |
| Unknown | 1,024 | 6.3% | 1 |
Network & registry
Origin network
AS9848
KR
- Name
- Sejong Networks
- Type
- Internet provider
- Registered
- Feb 4, 2000
- Domain
- sejongnetworks.com
- Website
- en.sejongnetworks.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 203.235.162.0/24 | AS9946 | RADB | contact [email protected] if necessary | MAINT-AS3786 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 203.
235. 128. 0/ 18 - 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
- Dec 14, 1995
- Status
- assigned
Report abuse
Abuse contact
- irt@
nic. or. kr - Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR