The current registrars for ".ai" are below and growing fast:
- 101domain.com
- instra.com
- marcaria.com
- nameaction.com
- idcicp.com
- quyu.net
- markmonitor.com
- 1api.net
- ai-domain.com
- zhuce.ai
- EPAG Domainservices GmbH
- EU Technology(HK) Limited
- Domain Club
- bNamed.net
- Tool Domains
- Nameshield
- 007Names
- Netz0
- zenaida.cate.ai
- Porkbun.com
- Namecheap.com
- NameSilo.com
- InternetX.com
To be on this list a registrar just has to handle ".ai" registrations,
renewals, and transfers (in and out).