shell:$ nslookup -timeout=2 -retry=1 'tms.tescomobile.com'
Server:		75.98.161.224
Address:	75.98.161.224#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: 18.154.185.27
Name:	d173vboxjdq5zh.cloudfront.net
Address: 18.154.185.52
Name:	d173vboxjdq5zh.cloudfront.net
Address: 18.154.185.73
Name:	d173vboxjdq5zh.cloudfront.net
Address: 18.154.185.87
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:2507:8800:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:2507:bc00:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:2507:5e00:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:2507:4800:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:2507:2600:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:2507:da00:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:2507:a600:e:da02:7340:93a1
Name:	d173vboxjdq5zh.cloudfront.net
Address: 2600:9000:2507:a00:e:da02:7340:93a1