shell:$ nslookup -timeout=2 -retry=1 'mobile.o2.co.uk'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
mobile.o2.co.uk	canonical name = wap.o2.co.uk.
wap.o2.co.uk	canonical name = d1evsoacg6eeum.cloudfront.net.
Name:	d1evsoacg6eeum.cloudfront.net
Address: 18.172.134.76
Name:	d1evsoacg6eeum.cloudfront.net
Address: 18.172.134.37
Name:	d1evsoacg6eeum.cloudfront.net
Address: 18.172.134.28
Name:	d1evsoacg6eeum.cloudfront.net
Address: 18.172.134.72
Name:	d1evsoacg6eeum.cloudfront.net
Address: 2600:9000:24bf:7e00:8:da62:2b80:93a1
Name:	d1evsoacg6eeum.cloudfront.net
Address: 2600:9000:24bf:a000:8:da62:2b80:93a1
Name:	d1evsoacg6eeum.cloudfront.net
Address: 2600:9000:24bf:8000:8:da62:2b80:93a1
Name:	d1evsoacg6eeum.cloudfront.net
Address: 2600:9000:24bf:2c00:8:da62:2b80:93a1
Name:	d1evsoacg6eeum.cloudfront.net
Address: 2600:9000:24bf:f200:8:da62:2b80:93a1
Name:	d1evsoacg6eeum.cloudfront.net
Address: 2600:9000:24bf:f800:8:da62:2b80:93a1
Name:	d1evsoacg6eeum.cloudfront.net
Address: 2600:9000:24bf:7c00:8:da62:2b80:93a1
Name:	d1evsoacg6eeum.cloudfront.net
Address: 2600:9000:24bf:2400:8:da62:2b80:93a1