comcast.net NSEC records

NSEC
15m
12c.comcast.net. A NS SOA MX TXT RRSIG NSEC DNSKEY

Question and response

Question

dig comcast.net. NSEC

Answer

comcast.net. 900 NSEC 12c.comcast.net. A NS SOA MX TXT RRSIG NSEC DNSKEY

Authority

The response has no authority records.

Additional

. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0