Robtex

Up: 67.45.128.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 67.45.132.0/23
Down right: 67.45.134.0/23

IP	Type	Hostname
67.45.132.1	PTR	dpc6745132001.direcpc.com
67.45.132.16	PTR	dpc6745132016.direcpc.com
67.45.132.17	PTR	dpc6745132017.direcpc.com
67.45.132.38	PTR	dpc6745132038.direcpc.com
67.45.132.43	PTR	dpc6745132043.direcpc.com
67.45.132.51	PTR	dpc6745132051.direcpc.com
67.45.132.102	PTR	dpc6745132102.direcpc.com
67.45.132.120	PTR	dpc6745132120.direcpc.com
67.45.132.160	A+PTR	dpc6745132160.direcpc.com
67.45.132.166	PTR	dpc6745132166.direcpc.com
67.45.132.184	PTR	dpc6745132184.direcpc.com
67.45.132.189	PTR	dpc6745132189.direcpc.com
67.45.132.195	PTR	dpc6745132195.direcpc.com
67.45.132.226	PTR	dpc6745132226.direcpc.com
67.45.132.241	PTR	dpc6745132241.direcpc.com
67.45.133.7	PTR	dpc6745133007.direcpc.com
67.45.133.31	PTR	dpc6745133031.direcpc.com
67.45.133.32	PTR	dpc6745133032.direcpc.com
67.45.133.34	PTR	dpc6745133034.direcpc.com
67.45.133.45	PTR	dpc6745133045.direcpc.com
67.45.133.47	PTR	dpc6745133047.direcpc.com
67.45.133.55	PTR	dpc6745133055.direcpc.com
67.45.133.64	PTR	dpc6745133064.direcpc.com
67.45.133.79	PTR	dpc6745133079.direcpc.com
67.45.133.90	PTR	dpc6745133090.direcpc.com
67.45.133.95	PTR	dpc6745133095.direcpc.com
67.45.133.123	PTR	dpc6745133123.direcpc.com
67.45.133.125	PTR	dpc6745133125.direcpc.com
67.45.133.134	PTR	dpc6745133134.direcpc.com
67.45.133.165	PTR	dpc6745133165.direcpc.com
67.45.133.171	PTR	dpc6745133171.direcpc.com
67.45.133.173	PTR	dpc6745133173.direcpc.com
67.45.133.180	PTR	dpc6745133180.direcpc.com
67.45.133.184	PTR	dpc6745133184.direcpc.com
67.45.133.187	A+PTR	dpc6745133187.direcpc.com
67.45.133.201	PTR	dpc6745133201.direcpc.com
67.45.133.227	PTR	dpc6745133227.direcpc.com
67.45.133.245	PTR	dpc6745133245.direcpc.com
67.45.135.90	A	dpc6745135090.direcpc.com
67.45.135.234	A	dpc6745135234.direcpc.com