117.52.0.0/16

Currently announced by AS3786 LG Uplus, in the routed prefix 117.52.0.0/16.

Current ASN: AS3786; LG Uplus
Routed prefix: 117.52.0.0/16; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: APNIC; South Korea · 117.52.0.0/16

Routing data · Nov 8, 2026, 10:26 UTC

ASN historyEvery routed prefix covering 117.52.0.0/16

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
117.52.0.0/16	AS3786	LG Uplus	South Korea	Before monitoring	2026-11-08 10:26	Announcing

More specific routes42 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
117.52.3.0/24	AS131093	viva republica	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.5.0/24	AS45974	NHN Cloud	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.6.0/24	AS57976	Blizzard Entertainment	United States	Before monitoring	2026-11-08 10:26	Announcing
117.52.20.0/24	AS45974	NHN Cloud	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.23.0/24	AS131093	viva republica	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.26.0/23	AS57976	Blizzard Entertainment	United States	Before monitoring	2026-11-08 10:26	Announcing
117.52.30.0/24	AS10059	LG DACOM KIDC	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.33.0/24	AS57976	Blizzard Entertainment	United States	Before monitoring	2026-11-08 10:26	Announcing
117.52.34.0/23	AS57976	Blizzard Entertainment	United States	Before monitoring	2026-11-08 10:26	Announcing
117.52.36.0/23	AS57976	Blizzard Entertainment	United States	Before monitoring	2026-11-08 10:26	Announcing
117.52.39.0/24	AS55614	danal.co	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.40.0/24	AS55614	danal.co	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.41.0/24	AS55614	danal.co	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.42.0/24	AS55614	danal.co	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.56.0/24	AS3786	LG Uplus	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.57.0/24	AS3786	LG Uplus	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.58.0/24	AS3786	LG Uplus	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.59.0/24	AS3786	LG Uplus	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.60.0/24	AS3786	LG Uplus	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.79.0/24	AS131093	viva republica	South Korea	2026-11-06 14:26	2026-11-08 10:26	Announcing
117.52.112.0/24	AS4791	JoongAng Ilbo	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.113.0/24	AS4791	JoongAng Ilbo	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.114.0/24	AS4791	JoongAng Ilbo	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.115.0/24	AS4791	JoongAng Ilbo	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.116.0/24	AS4791	JoongAng Ilbo	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.117.0/24	AS4791	JoongAng Ilbo	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.118.0/24	AS4791	JoongAng Ilbo	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.122.0/24	AS45974	NHN Cloud	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.123.0/24	AS45974	NHN Cloud	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.126.0/24	AS131093	viva republica	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.128.0/20	AS23576	NAVER	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.128.0/21	AS23576	NAVER	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.136.0/21	AS23576	NAVER	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.154.0/24	AS45974	NHN Cloud	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.155.0/24	AS45974	NHN Cloud	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.164.0/24	AS10155	JBCTV	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.165.0/24	AS10155	JBCTV	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.222.0/24	AS152211	Toss Securities Co., Ltd.	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.243.0/24	AS38688	GSNeotek	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.244.0/24	AS55614	danal.co	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.246.0/24	AS55614	danal.co	South Korea	Before monitoring	2026-11-08 10:26	Announcing
117.52.255.0/24	AS3786	LG Uplus	South Korea	Before monitoring	2026-11-08 10:26	Announcing

Change logAll changes

The routes covering this address have had no origin changes since ASNBase started monitoring.

Look up another address

RIR allocation record

Registry: APNIC
Allocated block: 117.52.0.0/16
Country: South Korea
Allocation date: 2011-01-10
Status: allocated

From the RIRs’ delegated statistics files. Shows where the addresses are registered, not where they are used.

How monitoring works

Every 2 hours ASNBase takes the bgp.tools global routing table (prefix → origin ASN) and compares it with the previous one. The detected time is the time of that comparison; the actual change can be up to about 2 hours earlier.
Only routes seen by more than 100 bgp.tools peers are listed as changes; routes with less visibility are only kept in the history.
A new announcement counts only if it is still in the next routing table, and a withdrawal only if the prefix is missing from two tables in a row, so short flaps are ignored.
ASNBase has been monitoring since 2026-10-19. “Before monitoring” under “First seen” means the route was already announced when monitoring started; the earlier date is unknown.
Prefixes first seen during the first day of monitoring do not count as new announcements: most of them were simply missing from the table at the moment monitoring started.
Countries and regions follow the ASN’s registration, not the actual location of the IP addresses.