2001:3c8::/32

Currently announced by AS4621 UniNet Thailand, in the routed prefix 2001:3c8::/32.

Current ASN: AS4621; UniNet Thailand
Routed prefix: 2001:3c8::/32; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: —; No allocation record found

Routing data · Nov 2, 2026, 02:24 UTC

ASN historyEvery routed prefix covering 2001:3c8::/32

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
2001:3c8::/32	AS4621	UniNet Thailand	Thailand	Before monitoring	2026-11-02 02:24	Announcing

More specific routes30 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
2001:3c8:243::/48	AS138685	Mahidol Wittayanusorn School	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:100f::/48	AS133919	University campus network, Rajamangala University of Technology Phra Nakhon	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:1012::/48	AS24475	ThaiREN.Thailand Research and Education Network Thailand	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:10ff::/48	AS139657	University of the Thai Chamber of Commerce	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:1202::/48	AS4762	Mahidol University, Thailand	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:1303::/48	AS9411	NontriNet	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:1306::/48	AS137198	Phranakorn Rajabhat University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:130a::/48	AS17827	Sukhothai Thammathirat Open University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:1401::/48	AS3839	Chulalongkorn University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:1408::/48	AS137261	Education Network	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:1606::/48	AS4762	Mahidol University, Thailand	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:2705::/48	AS132482	Rajamangala University of Technology Rattanakosin	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:2707::/48	AS4762	Mahidol University, Thailand	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:2808::/48	AS141714	Nakhon Pathom Rajabhat University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:2a07::/48	AS135528	Muban Chombueng Rajabhat University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:4007::/48	AS137241	PibulSongkramRajabhat University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:5007::/48	AS17479	Chiang Mai University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:5505::/48	AS137850	Mae Fah Luang University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:9006::/48	AS135616	Name: Thaksin University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:9009::/48	AS9464	Prince of Songkla University (Sritrang'NET)	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:900c::/48	AS45575	Rajamangala University of Technology Srivijaya	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:a701::/48	AS9562	Mahasarakham University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:a702::/48	AS132879	Rajabhat Mahasarakham University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:c109::/48	AS37932	Rajamangala University of Technology Isan	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:c10a::/48	AS37932	Rajamangala University of Technology Isan	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:c301::/48	AS55545	Suranaree University of Technology	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:c305::/48	AS37932	Rajamangala University of Technology Isan	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:cb01::/48	AS136624	Sakon Nakhon Rajabhat University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:d109::/48	AS138547	Ubon Ratchathani Rajabhat University	Thailand	Before monitoring	2026-11-02 02:24	Announcing
2001:3c8:e10e::/48	AS137546	Faculty of Engineering , Rajamangala University of	Thailand	Before monitoring	2026-11-02 02:24	Announcing

Change logAll changes

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

Look up another address

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.