shell:$ nslookup -timeout=2 -retry=1 'exchange.telstra.com.au'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
exchange.telstra.com.au	canonical name = d3blk76jcum585.cloudfront.net.
Name:	d3blk76jcum585.cloudfront.net
Address: 13.225.196.6
Name:	d3blk76jcum585.cloudfront.net
Address: 13.225.196.107
Name:	d3blk76jcum585.cloudfront.net
Address: 13.225.196.26
Name:	d3blk76jcum585.cloudfront.net
Address: 13.225.196.50
Name:	d3blk76jcum585.cloudfront.net
Address: 2600:9000:21a2:f800:a:16c0:7d40:93a1
Name:	d3blk76jcum585.cloudfront.net
Address: 2600:9000:21a2:f600:a:16c0:7d40:93a1
Name:	d3blk76jcum585.cloudfront.net
Address: 2600:9000:21a2:4c00:a:16c0:7d40:93a1
Name:	d3blk76jcum585.cloudfront.net
Address: 2600:9000:21a2:8a00:a:16c0:7d40:93a1
Name:	d3blk76jcum585.cloudfront.net
Address: 2600:9000:21a2:cc00:a:16c0:7d40:93a1
Name:	d3blk76jcum585.cloudfront.net
Address: 2600:9000:21a2:a00:a:16c0:7d40:93a1
Name:	d3blk76jcum585.cloudfront.net
Address: 2600:9000:21a2:9600:a:16c0:7d40:93a1
Name:	d3blk76jcum585.cloudfront.net
Address: 2600:9000:21a2:1a00:a:16c0:7d40:93a1