shell:$ nslookup -timeout=2 -retry=1 'fb-s-a-a.akamaihd.net'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
fb-s-a-a.akamaihd.net	canonical name = a2047.dscg.akamai.net.
Name:	a2047.dscg.akamai.net
Address: 23.1.254.199
Name:	a2047.dscg.akamai.net
Address: 23.1.254.221
Name:	a2047.dscg.akamai.net
Address: 23.1.254.200
Name:	a2047.dscg.akamai.net
Address: 23.1.254.212
Name:	a2047.dscg.akamai.net
Address: 23.1.254.223
Name:	a2047.dscg.akamai.net
Address: 23.1.254.213
Name:	a2047.dscg.akamai.net
Address: 23.1.254.204
Name:	a2047.dscg.akamai.net
Address: 23.1.254.201
Name:	a2047.dscg.akamai.net
Address: 23.1.254.218
Name:	a2047.dscg.akamai.net
Address: 2600:140a:5000:4::17df:11ac
Name:	a2047.dscg.akamai.net
Address: 2600:140a:5000:4::17df:11ad
Name:	a2047.dscg.akamai.net
Address: 2600:140a:5000:4::17df:11b0
Name:	a2047.dscg.akamai.net
Address: 2600:140a:5000:4::17df:11ae
Name:	a2047.dscg.akamai.net
Address: 2600:140a:5000:4::17df:11af