Robtex

Up: 207.65.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 207.65.52.0/23
Down right: 207.65.54.0/23

IP	Type	Hostname
207.65.53.5	PTR	host5-53-65-207.isdn.net
207.65.53.7	PTR	host7-53-65-207.isdn.net
207.65.53.21	PTR	host21-53-65-207.isdn.net
207.65.53.29	PTR	host29-53-65-207.isdn.net
207.65.53.33	PTR	host33-53-65-207.isdn.net
207.65.53.35	PTR	host35-53-65-207.isdn.net
207.65.53.42	PTR	host42-53-65-207.isdn.net
207.65.53.44	PTR	host44-53-65-207.isdn.net
207.65.53.53	PTR	host53-53-65-207.isdn.net
207.65.53.54	PTR	host54-53-65-207.isdn.net
207.65.53.59	PTR	host59-53-65-207.isdn.net
207.65.53.75	PTR	host75-53-65-207.isdn.net
207.65.53.81	PTR	host81-53-65-207.isdn.net
207.65.53.82	PTR	host82-53-65-207.isdn.net
207.65.53.87	PTR	host87-53-65-207.isdn.net
207.65.53.90	PTR	host90-53-65-207.isdn.net
207.65.53.91	PTR	host91-53-65-207.isdn.net
207.65.53.92	PTR	host92-53-65-207.isdn.net
207.65.53.96	PTR	host96-53-65-207.isdn.net
207.65.53.99	PTR	host99-53-65-207.isdn.net
207.65.53.102	PTR	host102-53-65-207.isdn.net
207.65.53.105	PTR	host105-53-65-207.isdn.net
207.65.53.106	PTR	host106-53-65-207.isdn.net
207.65.53.111	PTR	host111-53-65-207.isdn.net
207.65.53.112	PTR	host112-53-65-207.isdn.net
207.65.53.117	PTR	host117-53-65-207.isdn.net
207.65.53.118	PTR	host118-53-65-207.isdn.net
207.65.53.126	PTR	host126-53-65-207.isdn.net
207.65.53.127	PTR	host127-53-65-207.isdn.net
207.65.53.140	PTR	host140-53-65-207.isdn.net
207.65.53.142	PTR	host142-53-65-207.isdn.net
207.65.53.146	PTR	host146-53-65-207.isdn.net
207.65.53.148	PTR	host148-53-65-207.isdn.net
207.65.53.150	PTR	host150-53-65-207.isdn.net
207.65.53.164	PTR	host164-53-65-207.isdn.net
207.65.53.165	PTR	host165-53-65-207.isdn.net
207.65.53.168	PTR	host168-53-65-207.isdn.net
207.65.53.169	PTR	host169-53-65-207.isdn.net
207.65.53.171	PTR	host171-53-65-207.isdn.net
207.65.53.176	PTR	host176-53-65-207.isdn.net
207.65.53.177	PTR	host177-53-65-207.isdn.net
207.65.53.186	PTR	host186-53-65-207.isdn.net
207.65.53.188	PTR	host188-53-65-207.isdn.net
207.65.53.191	PTR	host191-53-65-207.isdn.net
207.65.53.199	PTR	host199-53-65-207.isdn.net
207.65.53.201	PTR	host201-53-65-207.isdn.net
207.65.53.205	PTR	host205-53-65-207.isdn.net
207.65.53.207	PTR	host207-53-65-207.isdn.net
207.65.53.215	PTR	host215-53-65-207.isdn.net
207.65.53.216	PTR	host216-53-65-207.isdn.net
207.65.53.217	PTR	host217-53-65-207.isdn.net
207.65.53.220	PTR	host220-53-65-207.isdn.net
207.65.53.222	PTR	host222-53-65-207.isdn.net
207.65.53.229	PTR	host229-53-65-207.isdn.net
207.65.53.234	PTR	host234-53-65-207.isdn.net
207.65.53.235	PTR	host235-53-65-207.isdn.net
207.65.53.238	PTR	host238-53-65-207.isdn.net
207.65.53.240	PTR	host240-53-65-207.isdn.net
207.65.53.247	PTR	host247-53-65-207.isdn.net
207.65.53.254	PTR	host254-53-65-207.isdn.net