It can be anything! An apex, subdomain, or even a URL.

Results for_sub2.broadcom.com

Resolver

Location

TXT

Name	TTL	Value
_sub2.broadcom.com	300	v=spf1 ip4:37.98.232.26 ip4:37.98.232.12 ip4:103.23.64.26 ip4:103.23.65.26 ip4:37.98.235.26 ip4:37.98.234.26 ip4:103.23.66.26 ip4:103.23.67.26 ip4:207.211.35.128/25 ip4:199.91.136.0/21 ip4:149.96.0.0/16 ~all