Nmap scan report for whocalld.com (108.181.100.77)
Host is up (0.19s latency).
Other addresses for whocalld.com (not scanned): 2604:6600:2000:7::2
rDNS record for 108.181.100.77: m5.global.network.pigop.com
Not shown: 96 filtered tcp ports (no-response)
PORT    STATE SERVICE
25/tcp  open  smtp
53/tcp  open  domain
80/tcp  open  http
443/tcp open  https

Nmap done: 1 IP address (1 host up) scanned in 5.41 seconds