Robtex

Up: 5.150.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 5.150.168.0/22
Down right: 5.150.172.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.150.168.0	PTR	ns1.performancehorizon.com
5.150.168.0	A	ns1.phgsupport.net
5.150.168.0	A	ns1.phgsupport.com
5.150.168.1	PTR	ns2.performancehorizon.com
5.150.168.1	A	ns2.performancehorizon.co
5.150.168.10	A+PTR	mail-1.performancehorizon.com
5.150.168.10	A	mail.performancehorizon.com
5.150.168.10	A	burravoe.performancehorizon.com
5.150.168.17	A	performancehorizon.co
5.150.168.19	PTR	mail.performancehorizon.com
5.150.169.1	A	itunes.performancehorizon.com
5.150.169.2	A	itunes.performancehorizon.com
5.150.169.3	A	itunes.performancehorizon.com
5.150.170.1	A	*.performancehorizon.com
5.150.170.1	A	stagingphgconsolenode.performancehorizon.com
5.150.170.1	A	stagingapi.performancehorizon.com
5.150.170.2	A	*.performancehorizon.com
5.150.170.2	A	stagingphgconsolenode.performancehorizon.com
5.150.170.2	A	stagingapi.performancehorizon.com
5.150.170.3	A	*.performancehorizon.com
5.150.170.3	A	stagingphgconsolenode.performancehorizon.com
5.150.170.3	A	stagingapi.performancehorizon.com
5.150.170.4	A	aos-creative.prf.hn
5.150.170.4	A	creative.prf.hn
5.150.170.5	A	aos-creative.prf.hn
5.150.170.5	A	creative.prf.hn
5.150.170.6	A	aos-creative.prf.hn
5.150.170.6	A	creative.prf.hn
5.150.170.7	A	aos-creative.prf.hn
5.150.170.7	A	creative.prf.hn
5.150.170.8	A	aos-creative.prf.hn
5.150.170.8	A	creative.prf.hn
5.150.170.9	A	aos-creative.prf.hn
5.150.170.9	A	creative.prf.hn
5.150.172.10	A	ns1.performancehorizon.co
5.150.172.10	A	ns1.performancehorizon.co.uk
5.150.172.10	A	ns1.prf.hn
5.150.172.20	A	mail.performancehorizon.net
5.150.172.20	A	burravoe.performancehorizon.net
5.150.172.20	A	mail2.performancehorizon.com
5.150.172.21	A	burravoe.performancehorizon.com
5.150.172.21	A	smtp.phg.io
5.150.172.21	A	burravoe.performancehorizon.co
5.150.172.30	A	performancehorizon.net
5.150.172.30	A	performancehorizon.co.uk