Robtex

Up: 27.51.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 27.51.144.0/21
Down right: 27.51.152.0/21

IP	Type	Hostname
27.51.144.21	A	27-51-144-21.adsl.fetnet.net
27.51.144.108	A	27-51-144-108.adsl.fetnet.net
27.51.144.214	A	27-51-144-214.adsl.fetnet.net
27.51.145.163	A+PTR	27-51-145-163.adsl.fetnet.net
27.51.146.15	A	27-51-146-15.adsl.fetnet.net
27.51.147.1	PTR	27-51-147-1.adsl.fetnet.net
27.51.148.98	A	27-51-148-98.adsl.fetnet.net
27.51.149.158	A	27-51-149-158.adsl.fetnet.net
27.51.151.3	A+PTR	27-51-151-3.adsl.fetnet.net
27.51.152.32	A+PTR	27-51-152-32.adsl.fetnet.net
27.51.152.240	A+PTR	27-51-152-240.adsl.fetnet.net
27.51.153.4	PTR	27-51-153-4.adsl.fetnet.net
27.51.154.77	A	27-51-154-77.adsl.fetnet.net
27.51.157.243	A+PTR	27-51-157-243.adsl.fetnet.net