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Data as of Nov 9, 2026

203.236.144.0/20

3,840 anonymizer addresses · 94% · ISP proxy5 residential-proxy exits · 30 days

Sejong Networks

Announcement
this exact prefix
No RPKI
Announced by
AS9848
Type
ISP proxy
94% of it

Residential-proxy exits

Proxy exits
5
0.12% of its addresses · 30 days
Spread
3 of 16
/24s with at least one exit
Providers
2
selling exits here
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

15 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
203.236.149.0/2402
203.236.155.0/2402
203.236.145.0/2401

Proxy providers listing exits

  • DataImpulse
  • EVOPROXY
IPv4 market

Path

1 · Holder
Sejong Networks
2 · Leased from
not leased
3 · Announced by
AS9848 Sejong Networks
since Jan 2025 · 22 mo ago
4 · Use
Proxy providersnamed Novada, SkyQuantum, LumiProxy
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 203.236.144.0/20/24sRole
Novada
3,84094%
15
Sells it
SkyQuantum
1,28031%
5
Runs it
LumiProxy
76819%
3
Sells it
Runs itSells it

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

203.236.144.0/20

From the registry to its use

  1. May 9, 2005– today
    Announced
    AS9848 Sejong Networks
    as part of 203.236.128.0/18
    203.236.128.0/18
  2. Jan 12, 2025– today
    Announced
    AS9848 Sejong Networks
    Internet provider
  3. Nov 11, 2025
    Route object
    AS9848 Sejong Networks
    RADB route object for AS9848 Sejong Networks, maintainer MAINT-AS4670
  4. today
    Registry record
    Sejong Networks
    ALLOCATED PORTABLE
    203.236.128.0/18
  5. today
    Used
    Novada
    Proxy seller
  6. today
    Used
    SkyQuantum
    Proxy seller
  7. today
    Used
    LumiProxy
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
203.236.128.0/18
since May 2005
AS9848Internet provider6Sejong Networks
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
203.236.146.0/24
since Feb 2025
AS138195HostingSejong Networks

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

4,096 addresses
TypeAddressesShareRanges
ISP proxyanonymizer3,84094%14
Hosting2566.3%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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