Robtex

Up: 71.21.128.0/17
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Down left: 71.21.128.0/19
Down right: 71.21.160.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
71.21.128.1	PTR	71-21-128-1.txr.clearwire-wmx.net
71.21.130.229	PTR	71-21-130-229.txr.clearwire-wmx.net
71.21.131.189	A	mail.compnet-solutions.com
71.21.131.189	A	mail.shepjohnson.com
71.21.131.189	A	shepjohnson.com
71.21.132.27	PTR	71-21-132-27.txr.clearwire-wmx.net
71.21.134.135	PTR	71-21-134-135.txr.clearwire-wmx.net
71.21.134.246	PTR	71-21-134-246.txr.clearwire-wmx.net
71.21.136.2	PTR	71-21-136-2.txr.clearwire-wmx.net
71.21.136.128	PTR	71-21-136-128.txr.clearwire-wmx.net
71.21.136.130	PTR	71-21-136-130.txr.clearwire-wmx.net
71.21.138.91	PTR	71-21-138-91.txr.clearwire-wmx.net
71.21.138.91	A	mail.philipbrown.us
71.21.142.188	PTR	71-21-142-188.txr.clearwire-wmx.net
71.21.143.33	A	ns2.ns2.ns2.mail.518c2506e57106779f0cf55fcfd14fb065d00efe1d5a5a2a9b2d684d.6.mjuyh.com
71.21.145.3	PTR	71-21-145-3.txr.clearwire-wmx.net
71.21.145.64	PTR	71-21-145-64.txr.clearwire-wmx.net
71.21.145.131	PTR	71-21-145-131.txr.clearwire-wmx.net
71.21.146.24	PTR	71-21-146-24.txr.clearwire-wmx.net
71.21.147.207	PTR	71-21-147-207.txr.clearwire-wmx.net
71.21.147.234	PTR	71-21-147-234.txr.clearwire-wmx.net
71.21.148.1	PTR	71-21-148-1.txr.clearwire-wmx.net
71.21.148.3	PTR	71-21-148-3.txr.clearwire-wmx.net
71.21.148.129	PTR	71-21-148-129.txr.clearwire-wmx.net
71.21.148.130	PTR	71-21-148-130.txr.clearwire-wmx.net
71.21.148.192	PTR	71-21-148-192.txr.clearwire-wmx.net
71.21.148.193	PTR	71-21-148-193.txr.clearwire-wmx.net
71.21.151.20	PTR	71-21-151-20.txr.clearwire-wmx.net
71.21.151.129	PTR	71-21-151-129.txr.clearwire-wmx.net
71.21.152.130	PTR	71-21-152-130.txr.clearwire-wmx.net
71.21.152.189	A	mx.coloradoitpro.com
71.21.152.194	PTR	71-21-152-194.txr.clearwire-wmx.net
71.21.153.236	PTR	71-21-153-236.txr.clearwire-wmx.net
71.21.155.45	PTR	71-21-155-45.txr.clearwire-wmx.net
71.21.158.49	PTR	71-21-158-49.txr.clearwire-wmx.net
71.21.161.154	PTR	71-21-161-154.txr.clearwire-wmx.net
71.21.162.66	PTR	71-21-162-66.txr.clearwire-wmx.net
71.21.162.128	PTR	71-21-162-128.txr.clearwire-wmx.net
71.21.162.192	PTR	71-21-162-192.txr.clearwire-wmx.net
71.21.162.194	PTR	71-21-162-194.txr.clearwire-wmx.net
71.21.163.6	PTR	71-21-163-6.txr.clearwire-wmx.net
71.21.166.7	A	allenwan.com
71.21.167.96	PTR	71-21-167-96.txr.clearwire-wmx.net
71.21.167.183	PTR	71-21-167-183.txr.clearwire-wmx.net
71.21.168.57	PTR	71-21-168-57.txr.clearwire-wmx.net
71.21.170.131	PTR	71-21-170-131.txr.clearwire-wmx.net
71.21.174.134	PTR	71-21-174-134.txr.clearwire-wmx.net
71.21.174.218	PTR	71-21-174-218.txr.clearwire-wmx.net
71.21.176.3	PTR	71-21-176-3.txr.clearwire-wmx.net
71.21.176.66	PTR	71-21-176-66.txr.clearwire-wmx.net
71.21.176.129	PTR	71-21-176-129.txr.clearwire-wmx.net
71.21.176.131	PTR	71-21-176-131.txr.clearwire-wmx.net
71.21.183.239	PTR	71-21-183-239.txr.clearwire-wmx.net
71.21.184.28	PTR	71-21-184-28.txr.clearwire-wmx.net
71.21.189.129	PTR	71-21-189-129.txr.clearwire-wmx.net