Data as of Nov 14, 2026
61.72.237.0/24
No anonymizer space · no proxy exits in 30 daysKorea Telecom
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 61.72.237.128/25 | AS17841 | Business | Korea Telecom |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 61.72.0.0/14 | 262,144 | KORNET | Korea Telecom | ALLOCATED PORTABLE | — | hostmaster@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 128 | 50% | 1 | |
| Residential | 128 | 50% | 1 |
Network & registry
Announced by
Covering announcement 61.72.0.0/13
- Prefix
- 61.72.0.0/13
- Announced by
- AS4766 Korea Telecom
- Type
- Residential
- Proxy exits
- 3,610
- Always-on exits
- 132
- RPKI
- No RPKI
- RIR
- APNIC
IPv4 market
Holder
- Organization
- Not stated by the registry
Origin network
AS4766
KR
- Name
- Korea Telecom
- Type
- Internet provider
- Registered
- Apr 22, 1996
- Domain
- kt.com
- Website
- www.kt.com/eng/main.jsp
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 2
Routing timeline
Who has announced 61.72.0.0/13
61.72.0.0/13
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
IRR
Route objects on 61.72.0.0/13
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4766 | RADB | KORnet Powered BY Korea Telecom | MAINT-AS4766 | Nov 13, 2023 |
Whois
Registration for this announcement
61.72.0.0/13 spans several registrations: 3 records are listed under Registrations.
- Registrant country
- AU
- RIR
- APNIC
- Country
- KR
- Delegated
- Dec 12, 2000
- Status
- assigned