Every extension, oldest first
sejong
We have seen sejong registered in 51 extensions. The oldest is sejong.co.kr, registered on 6 Jun 1996; the newest, sejong.si, on 5 Oct 2026.
Checking which of them answer in DNS today…
- Seen in
- 51 extensions
- Oldest
- 1996 sejong.co.kr
- Newest
- 2026 sejong.si
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 1996 | sejong.co.kr | 6 Jun 1996 | Oct 2027 | — | 6 Jun 1996 expires Oct 2027 | checking… | |
| 1996 | sejong.ac.kr | 5 Dec 1996 | Oct 2027 | — | 5 Dec 1996 expires Oct 2027 | checking… |  |
| 1998 | sejong.com | 11 Mar 1998 | Mar 2027 | Network Solutions, LLC | 11 Mar 1998 expires Mar 2027 | checking… | |
| 1998 | sejong.org | 1 Sep 1998 | Aug 2031 | Gabia, Inc. | 1 Sep 1998 expires Aug 2031 | checking… |  |
| 2001 | sejong.cz | 24 Oct 2001 | Oct 2027 | REG-INTERNET-CZ | 24 Oct 2001 expires Oct 2027 | checking… |  |
| 2007 | sejong.go.kr | 7 Mar 2007 | Mar 2027 | — | 7 Mar 2007 expires Mar 2027 | checking… | |
| 2008 | sejong.us | 20 Sep 2008 | Sep 2027 | Wild West Domains, Inc. | 20 Sep 2008 expires Sep 2027 | checking… |  |
| 2009 | sejong.me | 2 Jun 2009 | Jun 2027 | Wild West Domains, LLC | 2 Jun 2009 expires Jun 2027 | checking… |  |
| 2011 | sejong.asia | 27 Apr 2011 | Apr 2035 | Tucows Domains Inc. | 27 Apr 2011 expires Apr 2035 | checking… |  |
| 2012 | sejong.co.jp | 12 Nov 2012 | Nov 2026 | — | 12 Nov 2012 expires Nov 2026 | checking… |  |
| 2013 | sejong.pro | 29 May 2013 | May 2028 | Whois Corp. | 29 May 2013 expires May 2028 | checking… |  |
| 2013 | sejong.ca | 30 May 2013 | May 2028 | Tucows.com Co. | 30 May 2013 expires May 2028 | checking… | |
| 2018 | sejong.tech | 18 Oct 2018 | Oct 2027 | Whois Corp. | 18 Oct 2018 expires Oct 2027 | checking… |  |
| 2019 | sejong.online | 27 May 2019 | May 2029 | Alibaba Cloud Computing Ltd.… | 27 May 2019 expires May 2029 | checking… | |
| 2024 | sejong.world | 16 Jan 2024 | Jan 2027 | Gabia Inc. | 16 Jan 2024 expires Jan 2027 | checking… |  |
| 2024 | sejong.jp | 9 Jun 2024 | Jun 2027 | — | 9 Jun 2024 expires Jun 2027 | checking… | |
| 2025 | sejong.today | 8 Jan 2025 | Jan 2027 | Megazone Corp., dba HOSTING.KR | 8 Jan 2025 expires Jan 2027 | checking… |  |
| 2025 | sejong.com.mx | 26 Feb 2025 | Feb 2027 | Key-Systems GmbH | 26 Feb 2025 expires Feb 2027 | checking… |  |
| 2025 | sejong.net | 14 Apr 2025 | Apr 2027 | HANGANG SYSTEMS,INC. D/B/A DO… | 14 Apr 2025 expires Apr 2027 | checking… | |
| 2025 | sejong.ngo | 14 May 2025 | May 2026 (passed) | NameCheap, Inc. | 14 May 2025 expiry May 2026 (passed) | checking… |  |
| 2025 | sejong.xyz | 15 Jul 2025 | Jul 2026 (passed) | GMO Internet Group, Inc. d/b/… | 15 Jul 2025 expiry Jul 2026 (passed) | checking… | |
| 2025 | sejong.app | 9 Sep 2025 | Sep 2026 (passed) | Dynadot LLC. | 9 Sep 2025 expiry Sep 2026 (passed) | checking… | |
| 2025 | sejong.fun | 9 Sep 2025 | Sep 2026 (passed) | Alibaba Cloud Computing Ltd.… | 9 Sep 2025 expiry Sep 2026 (passed) | checking… |  |
| 2025 | sejong.io | 19 Sep 2025 | Sep 2027 | GoDaddy.com, LLC | 19 Sep 2025 expires Sep 2027 | checking… | |
| 2026 | sejong.co | 14 Feb 2026 | Feb 2027 | Dynadot Inc | 14 Feb 2026 expires Feb 2027 | checking… | |
| 2026 | sejong.ai | 2 May 2026 | May 2028 | DotGuard | 2 May 2026 expires May 2028 | checking… |  |
| 2026 | sejong.store | 9 Jun 2026 | Jun 2027 | Gabia, Inc. | 9 Jun 2026 expires Jun 2027 | checking… | |
| 2026 | sejong.dev | 11 Jun 2026 | Jun 2029 | Gabia, Inc. | 11 Jun 2026 expires Jun 2029 | checking… |  |
| 2026 | sejong.cc | 25 Jul 2026 | Jul 2027 | Spaceship, Inc. | 25 Jul 2026 expires Jul 2027 | checking… |  |
| 2026 | sejong.si | 5 Oct 2026 | Oct 2027 | Dynadot Inc | 5 Oct 2026 expires Oct 2027 | checking… | |
| — | sejong.ac | no date on record | — | — | no date on record | checking… | |
| — | sejong.city | no date on record | — | — | no date on record | checking… |  |
| — | sejong.cloud | no date on record | — | — | no date on record | checking… | |
| — | sejong.cn | no date on record | — | — | no date on record | checking… | |
| — | sejong.coffee | no date on record | — | — | no date on record | checking… | |
| — | sejong.com.hk | no date on record | — | — | no date on record | checking… |  |
| — | sejong.com.sg | no date on record | — | — | no date on record | checking… |  |
| — | sejong.com.vn | no date on record | — | — | no date on record | checking… | |
| — | sejong.edu | no date on record | — | — | no date on record | checking… | |
| — | sejong.edu.vn | no date on record | — | — | no date on record | checking… | |
| — | sejong.land | no date on record | — | — | no date on record | checking… | |
| — | sejong.law | no date on record | — | — | no date on record | checking… |  |
| — | sejong.mobi | no date on record | — | — | no date on record | checking… |  |
| — | sejong.mx | no date on record | Dec 2028 | NEUBOX Internet SA de CV | no date on record expires Dec 2028 | checking… |  |
| — | sejong.or.kr | no date on record | — | — | no date on record | checking… | |
| — | sejong.pe.kr | no date on record | — | — | no date on record | checking… |  |
| — | sejong.re.kr | no date on record | — | — | no date on record | checking… |  |
| — | sejong.ru | no date on record | — | — | no date on record | checking… |  |
| — | sejong.sbs | no date on record | — | — | no date on record | checking… | |
| — | sejong.vip | no date on record | — | — | no date on record | checking… |  |
| — | sejong.wiki | no date on record | — | — | no date on record | checking… |  |
Seen before, not in DNS now
These names were registered when we last saw them, but they have no nameservers today. They may have lapsed, or be registered and parked without DNS. Not in DNS does not mean free: only the registry can say that.
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|
How to read this
Registered is the creation date in the registry's own record (WHOIS or RDAP) when we last looked. A name that lapsed and was registered again shows its newest registration.
No date on record means we do not have the date yet, or the registry does not publish one. Missing years fill in over time, and so do registrations we have not seen yet.
Not in DNS means the name has no nameservers today. It never means the name is free to register: only a registry can tell you that.