Robtex

Up: 63.144.4.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 63.144.4.0/25
Down right: 63.144.4.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
63.144.4.0	PTR	63-144-4-0.dia.static.qwest.net
63.144.4.1	PTR	63-144-4-1.dia.static.centurylink.net
63.144.4.1	A	63-144-4-1.dia.static.qwest.net
63.144.4.2	PTR	63-144-4-2.dia.static.qwest.net
63.144.4.5	PTR	63-144-4-5.dia.static.qwest.net
63.144.4.6	A+PTR	63-144-4-6.dia.static.qwest.net
63.144.4.7	PTR	63-144-4-7.dia.static.qwest.net
63.144.4.104	PTR	63-144-4-104.dia.static.centurylink.net
63.144.4.104	A	63-144-4-104.dia.static.qwest.net
63.144.4.105	PTR	63-144-4-105.dia.static.centurylink.net
63.144.4.106	A+PTR	63-144-4-106.dia.static.qwest.net
63.144.4.107	PTR	63-144-4-107.dia.static.qwest.net
63.144.4.108	A+PTR	63-144-4-108.dia.static.qwest.net
63.144.4.109	PTR	63-144-4-109.dia.static.qwest.net
63.144.4.110	PTR	63-144-4-110.dia.static.centurylink.net
63.144.4.111	PTR	63-144-4-111.dia.static.qwest.net
63.144.4.112	PTR	63-144-4-112.dia.static.centurylink.net
63.144.4.112	A	63-144-4-112.dia.static.qwest.net
63.144.4.113	PTR	63-144-4-113.dia.static.qwest.net
63.144.4.114	PTR	63-144-4-114.dia.static.qwest.net
63.144.4.115	PTR	63-144-4-115.dia.static.centurylink.net
63.144.4.116	PTR	63-144-4-116.dia.static.qwest.net
63.144.4.117	PTR	63-144-4-117.dia.static.centurylink.net
63.144.4.117	A	63-144-4-117.dia.static.qwest.net
63.144.4.118	PTR	63-144-4-118.dia.static.qwest.net
63.144.4.120	PTR	63-144-4-120.dia.static.qwest.net
63.144.4.121	A+PTR	63-144-4-121.dia.static.qwest.net
63.144.4.122	PTR	63-144-4-122.dia.static.centurylink.net
63.144.4.122	A	63-144-4-122.dia.static.qwest.net
63.144.4.124	PTR	63-144-4-124.dia.static.centurylink.net
63.144.4.124	A	63-144-4-124.dia.static.qwest.net
63.144.4.125	PTR	63-144-4-125.dia.static.centurylink.net
63.144.4.126	PTR	63-144-4-126.dia.static.qwest.net
63.144.4.127	A+PTR	63-144-4-127.dia.static.qwest.net
63.144.4.130	A	jsctruckingllc.com
63.144.4.130	A	mail.thomasbookkeepingandtax.com
63.144.4.130	A	mail.adlawnservice.com
63.144.4.131	PTR	mail.absolutecollection.com
63.144.4.131	PTR	mail.patientfinancialservices.com
63.144.4.137	PTR	63-144-4-137.dia.static.centurylink.net
63.144.4.138	A+PTR	63-144-4-138.dia.static.qwest.net
63.144.4.140	PTR	63-144-4-140.dia.static.centurylink.net
63.144.4.141	PTR	63-144-4-141.dia.static.centurylink.net
63.144.4.142	PTR	63-144-4-142.dia.static.centurylink.net
63.144.4.142	A	slackerpool.com
63.144.4.142	A	mail.slackerpool.com
63.144.4.143	PTR	63-144-4-143.dia.static.qwest.net
63.144.4.144	PTR	63-144-4-144.dia.static.centurylink.net
63.144.4.145	PTR	63-144-4-145.dia.static.qwest.net
63.144.4.146	A+PTR	63-144-4-146.dia.static.qwest.net
63.144.4.147	A+PTR	63-144-4-147.dia.static.qwest.net
63.144.4.149	PTR	63-144-4-149.dia.static.qwest.net
63.144.4.150	A+PTR	63-144-4-150.dia.static.qwest.net
63.144.4.151	PTR	63-144-4-151.dia.static.qwest.net