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Data as of Nov 6, 2026

211.255.240.0/20

2,048 anonymizer addresses · 50% · ISP proxy

Sejong Networks

Announcement
this exact prefix
No RPKI
Announced by
AS9848
Type
Internet provider
50% of it
IPv4 market

Path

1 · Holder
Sejong Networks
2 · Leased from
not leased
3 · Announced by
AS9848 Sejong Networks
since May 2005 · 21.5 yr ago
4 · Use
Proxy providersnamed Novada
Internet provider

Operators, sellers and brokers

Proxy providers

NameParentIn 211.255.240.0/20/24s
Novada
2,04850%
8

Lineage

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

211.255.240.0/20

From the registry to its use

  1. May 9, 2005– today
    Announced
    AS9848 Sejong Networks
    Internet provider
  2. Aug 19, 2005
    Route object
    AS9848 Sejong Networks
    REACH route object for AS9848 Sejong Networks, maintainer MAINT-REACH-NOC
  3. Feb 15, 2017
    Route object
    AS9848 Sejong Networks
    RADB route object for AS9848 Sejong Networks, maintainer MAINT-AS9318
  4. today
    Registry record
    Sejong Networks
    ALLOCATED PORTABLE
    211.255.224.0/19
  5. today
    Used
    Novada
    Proxy seller

Announcements

More specific

Announcements inside

PrefixOriginTypeAnonymizer addressesOperatorHolderRPKI
211.255.240.0/21
since Aug 2025
AS9848ISP proxy1,79288%Proxy providerssold by NovadaSejong Networks
211.255.244.0/24
since Oct 22, 2026
AS9848ISP proxyProxy providerssold by NovadaSejong 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
Internet provider2,04850%1
ISP proxyanonymizer2,04850%4

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