in-addr.btopenworld.com NS records

NS Authoritative DNS server
1d
a-ns.bt.com
b-ns.bt.com

Question and response

Question

dig in-addr.btopenworld.com. NS

Answer

in-addr.btopenworld.com. 86400 NS b-ns.bt.com. in-addr.btopenworld.com. 86400 NS a-ns.bt.com.

Authority

The response has no authority records.

Additional

. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0