| Domain Name | Registered | Expiry | Registrar | Ownership | |
|---|---|---|---|---|---|
| 1 | c21.com | 10 Mar 1995 | 11 Mar 2025 | CSC CORPORATE DOMAINS, INC. | Century 21 Real Estate LLC |
| 2 | c21.net | 27 Dec 1996 | 26 Dec 2024 | IONOS SE | Century 21 Hometown Realty |
| 3 | c21.co.jp | 28 Oct 1997 | - | - | yamaichihausu,inc. |
| 4 | c21.nl | 8 Jun 1998 | - | Cronon GmbH | - |
| 5 | c21.com.cn | 9 Oct 1999 | 9 Oct 2025 | 阿里云计算有限公司（万网） | 北京埃菲特国际特许经营咨询服务有限公司 |
| 6 | c21.info | 30 Jul 2001 | 30 Jul 2025 | Domain Registration Services, Inc. dba dotEarth.com | GETANAME |
| 7 | c21.biz | 27 Mar 2002 | 26 Mar 2025 | CSC Corporate Domains, Inc. | Century 21 Real Estate LLC |
| 8 | c21.org.uk | 20 Jun 2003 | 20 Jun 2025 | Ionos SE [Tag = 1AND1] | - |
| 9 | c21.co.uk | 30 Jun 2006 | 30 Jun 2025 | Fasthosts Internet Ltd [Tag = LIVEDOMAINS] | - |
| 10 | c21.ru | 12 Feb 2008 | 12 Feb 2025 | REGRU-RU | Private Person |
| 11 | c21.com.br | 2 Nov 2008 | 2 Nov 2027 | - | Almeida, Rotenberg e Boscoli - Soc. de Advogados |
| 12 | c21.pt | 5 Jan 2012 | - | - | Rede Global - Gestao e Exploracao de Franquias S.A. |
| 13 | c21.ca | 17 Aug 2012 | 17 Aug 2025 | eNom Canada Corp. | Century 21 Canada |
| 14 | c21.it | 5 Oct 2013 | 27 Feb 2025 | CSC Corporate Domains, Inc. | CSC Digital Brand Services SAS |
| 15 | c21.solar | 1 Apr 2014 | 1 Apr 2025 | CSC Corporate Domains, Inc. | Solar Century Holdings |
| 16 | c21.guru | 12 May 2014 | 12 May 2025 | IONOS SE | Data Privacy Protected |
| 17 | c21.nyc | 30 Oct 2014 | 29 Oct 2024 | GoDaddy.com, LLC | Century 21 Department Store |
| 18 | c21.mobi | 31 Oct 2014 | 31 Oct 2024 | COREhub, S.R.L. | Channel21 GmbH |
| 19 | c21.property | 3 Dec 2014 | 3 Dec 2024 | 1API GmbH | Domains By Proxy, LLC |
| 20 | c21.paris | 9 Dec 2014 | 9 Dec 2024 | NAMESHIELD | CADET CADET |
| 21 | c21.properties | 23 Apr 2015 | 23 Apr 2025 | GoDaddy.com, LLC | Domains By Proxy, LLC |
| 22 | c21.sucks | 20 Jun 2015 | 20 Jun 2025 | CSC Corporate Domains, Inc. | Century 21 Real Estate LLC |
| 23 | c21.lat | 4 Aug 2015 | 4 Aug 2025 | Akky Online Solutions S.A. de C.V. | - |
| 24 | c21.space | 5 Nov 2015 | 5 Nov 2024 | eNom, Inc. | Opticrealm Ltd |
| 25 | c21.cymru | 13 Jan 2016 | 13 Jan 2025 | 1&1 IONOS SE | REDACTED FOR PRIVACY |
| 26 | c21.org | 17 Jan 2016 | 17 Jan 2025 | Dynadot Inc | REDACTED FOR PRIVACY |
| 27 | c21.online | 31 Jan 2016 | 31 Jan 2025 | Go Daddy, LLC | Domains By Proxy, LLC |
| 28 | c21.forsale | 7 Feb 2016 | 7 Feb 2025 | Network Solutions, LLC | Namespro Solutions Inc. |
| 29 | c21.news | 8 Jun 2016 | 8 Jun 2025 | NameSilo, LLC | See PrivacyGuardian.org |
| 30 | c21.homes | 27 Sep 2016 | 27 Sep 2024 | Lexsynergy Limited | Century 21 Real Estate LLC |
| 31 | c21.gd | 13 Dec 2016 | 13 Dec 2024 | Names.GD | - |
| 32 | c21.team | 27 Jan 2017 | 27 Jan 2025 | GoDaddy.com, LLC | Domains By Proxy, LLC |
| 33 | c21.tokyo | 18 Apr 2017 | 18 Apr 2033 | GMO Internet Group, Inc. | - |
| 34 | c21.hr | 29 Jun 2017 | 29 Jun 2025 | Webtasy, d.o.o. | CSLO REGIONALNA d.o.o. |
| 35 | c21.website | 8 Aug 2017 | 8 Aug 2025 | Realtime Register B.V. | My Domain Provider |
| 36 | c21.site | 8 Aug 2017 | 8 Aug 2025 | Realtime Register B.V. | My Domain Provider |
| 37 | c21.cloud | 19 Sep 2017 | 19 Sep 2024 | OVH sas | YGL |
| 38 | c21.digital | 19 Sep 2017 | 19 Sep 2024 | OVH SAS | YGL |
| 39 | c21.srl | 11 Oct 2017 | 11 Oct 2024 | Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA | C21 SRL |
| 40 | c21.ag | 16 Jan 2018 | 16 Jan 2025 | OVH SAS | YGL |
| 41 | c21.app | 8 May 2018 | 8 May 2025 | GoDaddy.com, LLC | Domains By Proxy, LLC |
| 42 | c21.co.th | 9 May 2018 | 8 May 2028 | THNIC | Century 21 Fortune Co., Ltd. (บริษัท เซ็นจูรี่ 21 ฟอร์จูน จำกัด) |
| 43 | c21.house | 30 May 2018 | 30 May 2026 | GoDaddy.com, LLC | Domains By Proxy, LLC |
| 44 | c21.be | 9 Sep 2018 | - | Combell nv | - |
| 45 | c21.direct | 10 Sep 2018 | 10 Sep 2025 | 101domain GRS Limited | Digital Privacy Corporation |
| 46 | c21.promo | 22 Sep 2018 | 22 Sep 2025 | Dreamscape Networks International Pte Ltd | Stronghold Trading Pty Ltd |
| 47 | c21.pl | 4 Dec 2018 | 4 Dec 2024 | OVH SAS | - |
| 48 | c21.sale | 12 Jan 2019 | 12 Jan 2027 | Cloudflare, Inc | Selling Sarasota, LLC |
| 49 | c21.tv | 21 Feb 2019 | 21 Feb 2025 | Corehub, S.R.L. | Channel21 GmbH |
| 50 | c21.ninja | 6 Mar 2019 | 6 Mar 2025 | eNom, LLC | Data Protected |
You can fetch the above results in JSON or XML format through our API:
API Pricing and Packages
Can be used for Current WHOIS API, Bulk WHOIS API, WHOIS History API, Reverse WHOIS API and Fuzzy Domains API.
| Package | Quantity | Price | Rate ⇩ | Order |
|---|---|---|---|---|
| 5,000 API Credits | 5,000 | $25 | $5.00 | Buy Now |
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Similar Domains Finder
Find domains that contain your domain name's exact keyword through our free Similar Domains Finder tool.
Our Current WHOIS Database contains the latest WHOIS of over 266 Million active domain names, that are currently registered. This powers our Reverse WHOIS API, which lets you quickly find all the domains contain your domain's exact keyword.