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Data as of Nov 6, 2026

203.236.158.0/24

Anonymizer · ISP proxy

Skyquantum Telecom Ltd. · space held by Sejong Networks

Announcement
this exact prefix
No RPKI
Announced by
AS216138
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Sejong Networks
2 · Leased from
Sejong Networks
its owner, directly
3 · Announced by
AS216138 Skyquantum Telecom Ltd.
4 · Use
Proxy providersnamed Novada, SkyQuantum
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 203.236.158.0/24/24sRole
Novada
256100%
1
Sells it
SkyQuantum
256100%
1
Runs it
Runs itSells it
Leased from

Owners leasing their own space

NameIn 203.236.158.0/24/24s
Sejong Networks
256100%
1

Lineage

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

203.236.158.0/24

From the registry to its use

  1. Jan 12, 2025– today
    Announced
    AS9848 Sejong Networks
    as part of 203.236.144.0/20
    203.236.144.0/20
  2. Jan 12, 2025– Nov 7, 2025
    Announced
    AS9848 Sejong Networks
    Internet provider
  3. Oct 14, 2026
    Route object
    AS216138 Skyquantum Telecom Ltd.
    RADB route object for AS216138 Skyquantum Telecom Ltd., maintainer MAINT-AS135605
  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

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorProxy exitsHolderRPKI
203.236.144.0/20
since Jan 2025
AS9848ISP proxy2,56063%Proxy providerssold by Novada, LumiProxy1Sejong Networks
203.236.128.0/18
since May 2005
AS9848Internet provider2Sejong Networks

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS216138

GB
Name
Skyquantum Telecom Ltd.
Type
Hosting
Registered
Oct 17, 2023
Domain
skyquantum.net
Website
skyquantum.net
Spamhaus ASN-DROP
not listed