shell:$ nslookup -timeout=2 -retry=1 'tms.tescomobile.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
tms.tescomobile.com	canonical name = tms.tescomobile.com.greylabeldelivery.com.
tms.tescomobile.com.greylabeldelivery.com	canonical name = d173vboxjdq5zh.cloudfront.net.
Name:	d173vboxjdq5zh.cloudfront.net
Address: 108.156.184.97
Name:	d173vboxjdq5zh.cloudfront.net
Address: 108.156.184.31
Name:	d173vboxjdq5zh.cloudfront.net
Address: 108.156.184.73
Name:	d173vboxjdq5zh.cloudfront.net
Address: 108.156.184.74
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:24fd:6c00:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:24fd:6800:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:24fd:ac00:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:24fd:ce00:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:24fd:a00:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:24fd:1800:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:24fd:6000:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:24fd:7e00:e:da02:7340:93a1