Question and response
Question
dig _nets.opendns.com. TXT
Answer
_nets.opendns.com. 120 TXT "v=spf1 ip6:2620:0:CC0::/44 ip4:67.215.92.0/23 ip4:67.215.68.0/23 ip4:38.99.20.0/23 ip4:208.67.219.0/24 ip4:204.194.232.0/21 ip4:208.69.32.0/24 ?all"
Authority
opendns.com. 604800 NS auth1.opendns.com.
opendns.com. 604800 NS auth2.opendns.com.
opendns.com. 604800 NS auth3.opendns.com.
Additional
. 32768 OPT ; payload 4000, xrcode 0, version 0, flags 32768
auth1.opendns.com. 172800 AAAA 2620:119:30:0:0:0:0:53
auth1.opendns.com. 172800 A 208.69.39.2
auth2.opendns.com. 172800 AAAA 2a04:e4c0:53:0:0:0:0:53
auth2.opendns.com. 172800 A 146.112.60.53
auth3.opendns.com. 172800 A 208.69.39.2