Data as of Nov 7, 2026
203.249.0.0/18
11 residential-proxy exits · 30 daysKorea Telecom
Residential-proxy exits
Proxy exits
11
0.07% of its addresses · 30 days
Always-on exits
1
9.1% of its exits
Spread
6 of 64
/24s with at least one exit
Providers
7
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
2.7K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 203.249.30.0/24 | 1 | 1 | |
| 203.249.2.0/24 | 0 | 3 | |
| 203.249.8.0/24 | 0 | 2 | |
| 203.249.10.0/24 | 0 | 2 | |
| 203.249.24.0/24 | 0 | 2 | |
| 203.249.4.0/24 | 0 | 1 |
Proxy providers listing exits
- FastProxy
- LemonBright
- ProxyRack
- Proxying
- RainProxy
- Shifter
- Thordata
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.249.0.0/19 since Jun 2025 | AS4766 | Residential | 11 1 always on | Korean Education Network | |
| 203.249.11.0/24 since Jan 2015 | AS4766 | Residential | Korean Education Network | ||
| 203.249.11.0/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.11.128/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.12.0/24 since Jan 2015 | AS4766 | Residential | Korean Education Network | ||
| 203.249.12.0/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.12.128/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.13.0/24 since Jan 2015 | AS4766 | Residential | Korean Education Network | ||
| 203.249.13.0/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.13.128/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.14.0/24 since Jan 2015 | AS4766 | Residential | Korean Education Network | ||
| 203.249.14.0/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.14.128/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.15.0/24 since Jan 2015 | AS4766 | Residential | Korean Education Network | ||
| 203.249.15.0/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.15.128/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.16.0/24 since Jan 2015 | AS4766 | Residential | Korean Education Network | ||
| 203.249.16.0/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.16.128/25 | AS4766 | Residential | Korean Education Network | ||
| 203.249.32.0/24 since Dec 2017 | AS4766 | Residential | Korean Education Network | ||
| 203.249.33.0/24 since Jun 2020 | AS9318 | Residential | Korean Education Network | ||
| 203.249.34.0/24 since Sep 2012 | AS10073 | Business | Korean Education Network | ||
| 203.249.35.0/24 since May 2005 | AS9867 | Business | Korean Education Network | ||
| 203.249.36.0/24 since May 2010 | AS10073 | Business | Korean Education Network | ||
| 203.249.37.0/24 since Mar 2020 | AS3786 | Business | Korean Education Network | ||
| 203.249.38.0/24 since Oct 2017 | AS55611 | Business | Korean Education Network | ||
| 203.249.39.0/24 since Dec 2023 | AS3786 | Business | Korean Education Network | ||
| 203.249.40.0/24 since May 2012 | AS10073 | Business | Korean Education Network | ||
| 203.249.41.0/24 since Sep 2012 | AS10073 | Business | Korean Education Network | ||
| 203.249.42.0/24 since Sep 2012 | AS10073 | Business | Korean Education Network | ||
| 203.249.43.0/24 since Sep 2012 | AS10073 | Business | Korean Education Network | ||
| 203.249.44.0/24 since Sep 2012 | AS10073 | Business | Korean Education Network | ||
| 203.249.45.0/24 since May 2010 | AS10073 | Business | Korean Education Network | ||
| 203.249.47.0/24 since May 2005 | AS10071 | Business | Korean Education Network | ||
| 203.249.48.0/20 since Jan 2020 | AS9271 | Business | Korean Education Network |
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 |
|---|---|---|---|---|---|---|
| 203.249.0.0/18 | 16,384 | KREN | Korean Education Network | ALLOCATED PORTABLE | — | hostmaster@ |
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 | |
|---|---|---|---|---|
| Residential | 8,960 | 55% | 17 | |
| Business | 7,424 | 45% | 14 |
Network & registry
Announced by
Covering announcement 203.249.0.0/17
- Prefix
- 203.249.0.0/17
- Announced by
- AS4766 Korea Telecom
- Type
- Residential
- Proxy exits
- 53
- Always-on exits
- 4
- 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
- 1
Routing timeline
Who has announced 203.249.0.0/17
203.249.0.0/17
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
IRR
Route objects on 203.249.0.0/17
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4766 | RADB | Korea Telecom | MAINT-AS4766 | Nov 13, 2023 |
Whois
Registration for this announcement
203.249.0.0/17 spans several registrations: 3 records are listed under Registrations.
- Registrant country
- AU
- RIR
- APNIC
- Country
- KR
- Delegated
- Sep 29, 1996
- Status
- assigned