59.0.0.0/13

Currently announced by AS4766 KT Corporation (Korea Telecom), in the routed prefix 59.0.0.0/13.

Current ASN: AS4766; KT Corporation (Korea Telecom)
Routed prefix: 59.0.0.0/13; Most specific route covering this prefix
ASNs over time: 1; 3 announcement records
RIR allocation: APNIC; South Korea · 59.0.0.0/11

Routing data · Nov 10, 2026, 12:46 UTC

ASN historyEvery routed prefix covering 59.0.0.0/13

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
59.0.0.0/13	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.0.0/12	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.0.0/11	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing

More specific routes31 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
59.0.113.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.144.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.170.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.171.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.172.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.173.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.174.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.175.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.176.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.0.177.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.1.40.0/24	AS7560	Jeonbuk National University	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.1.41.0/24	AS7560	Jeonbuk National University	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.1.92.0/24	AS131814	Presbyterian Medical Center	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.2.109.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.2.112.0/24	AS9954	Kunsan National University (KNU)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.3.221.0/24	AS38681	Jeollanamdo Educational Research Information Institute	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.4.89.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.4.90.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.4.91.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.4.92.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.4.93.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.4.94.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.4.95.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.4.96.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.4.97.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.4.98.0/24	AS4766	KT Corporation (Korea Telecom)	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.5.12.0/24	AS131835	samyangfoods.co	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.5.41.0/24	AS23587	Korea Credit Bureau	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.7.252.0/24	AS23554	Shinhan Bank	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.7.254.0/24	AS23555	Shinhan Bank	South Korea	Before monitoring	2026-11-10 12:46	Announcing
59.7.255.0/24	AS23555	Shinhan Bank	South Korea	Before monitoring	2026-11-10 12:46	Announcing

Change logAll changes

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

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RIR allocation record

Registry: APNIC
Allocated block: 59.0.0.0/11
Country: South Korea
Allocation date: 2004-08-02
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.