shell:$ nslookup -timeout=2 -retry=1 'links.o2.co.uk'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
links.o2.co.uk	canonical name = web-uk.mytelco.io.
web-uk.mytelco.io	canonical name = prd-o2uk-uksouth01.mytelco.io.
Name:	prd-o2uk-uksouth01.mytelco.io
Address: 20.157.120.51