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Data as of Nov 6, 2026

210.103.248.0/21

No anonymizer space · no proxy exits in 30 days

Sejong Networks

Announcement
210.103.128.0/17
No RPKI
Announced by
AS9848
Type
Internet provider
75% of it

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
210.103.253.0/24
since Jun 2025
AS10178BusinessSejong Networks
210.103.254.0/24
since Jun 2025
AS10178BusinessSejong Networks

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
210.103.128.0/1732,768SEJONGSejong NetworksALLOCATED PORTABLE—irt@nic.or.kr
└ 210.103.224.0/198,192KRNIC-KRKRNICALLOCATED PORTABLE—irt@nic.or.kr

Composition

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

Announced space

Address share

Announced space

Types across the prefix

2,048 addresses
TypeAddressesShareRanges
Internet provider1,53675%2
Business51225%2

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 210.103.128.0/17

Prefix
210.103.128.0/17
Announced by
AS9848 Sejong Networks
Type
Internet provider
RPKI
No RPKI
Netname
SEJONG-KR
Registrant
Sejong Networks
RIR
APNIC
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