Each DNS server has an api endpoint at https://{{location}}.teradns.org/dns-query that supports the DNS Wireformat.
All DoH endpoints are listed below. They require strict SNI.

United Kingdom

https://uk.teradns.org/dns-query
IPv4: 45.147.54.7
IPv6: N/A

Sydney

https://au.teradns.org/dns-query
IPv4: 194.29.100.68
IPv6: N/A

Germany

https://de.teradns.org/dns-query
IPv4: 2.58.59.12
IPv6: N/A

New York

https://ny.teradns.org/dns-query
IPv4: 45.61.162.132
IPv6: 2605:aa80:1:1688::0001

Texas

https://tx.teradns.org/dns-query
IPv4: 45.79.38.174
IPv6: 2600:3c00::f03c:93ff:fe79:3686

Singapore

https://sg.teradns.org
IPv4: 103.167.151.201
IPv6: 2400:8901::f03c:93ff:fe0a:6eec