Neustar Registry
Scheduled for Apr 22, 21:00 PDT  -  Apr 23, 03:00 PDT
Scheduled
During this scheduled system maintenance, the following services may be unavailable:

Availability Checks
Whois Services
Domain Purchases
Domain Renewals
Domain Updates

For a list of affected TLD's, please see below:
.biz
.travel
.tel
.us
Posted 2 days ago. Apr 16, 2019 - 23:21 PDT
This scheduled maintenance affects: Domain Services (Other gTLDs, Other ccTLDs).