Data as of Nov 5, 2026
211.172.100.0/22
No anonymizer space · no proxy exits in 30 daysSejong Networks
Announced by
Type
Internet provider
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Jul 2026
from AS18305 Posco DX, after 21.1 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 211.172.96.0/20 since Aug 2025 | AS9848 | Internet provider | Sejong Networks |
Network & registry
Announced by
Covering announcement 211.172.96.0/21
- Prefix
- 211.172.96.0/21
- Announced by
- AS9848 Sejong Networks
- Type
- Internet provider
- RPKI
- No RPKI
- Netname
- SEJONG-KR
- Registrant
- Sejong Networks
- RIR
- APNIC
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
Covering aggregate above, the prefix's own history below
211.172.96.0/21
Routing history
- Pattern
- Reactivated
- First seen
- May 2005
- Current origin since
- Jul 2026 · 3 mo
- Origin networks
- 2
- Last change of origin
- Jul 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 211.
172. 96. 0/ 20 - 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
- May 26, 2000
- Status
- assigned
Report abuse
Abuse contact
- irt@
nic. or. kr - Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR