Robtex

Up: 206.196.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 206.196.128.0/21
Down right: 206.196.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
206.196.128.1	A+PTR	old-ns2.uswest.net
206.196.128.1	PTR	old-ns2.dnvr.uswest.net
206.196.128.1	A	shellymeinhardt.com
206.196.128.3	A+PTR	thn-dns-01.inet.qwest.net
206.196.128.3	A	dnvr.uswest.net
206.196.128.36	A	dnvr-asc4.dnvr.uswest.net
206.196.128.129	A	voip1.dnvr.uswest.net
206.196.128.130	A	voip2.dnvr.uswest.net
206.196.130.37	PTR	hlr-edge-06.inet.qwest.net
206.196.131.193	PTR	35.atm4-1-0.dnvr-cust1.dnvr.uswest.net
206.196.131.221	A	85.s10-1-0.dnvr-cust1.dnvr.uswest.net
206.196.132.1	PTR	hlrn-lns-gw01.inet.qwest.net
206.196.132.1	PTR	hlrn-lns-gw01-lb-231.hlrn.qwest.net.132.196.206.in-addr.arpa
206.196.132.2	PTR	hlrn-lns-gw01.inet.qwest.net
206.196.132.2	PTR	hlrn-lns-gw01-lb-232.hlrn.qwest.net.132.196.206.in-addr.arpa
206.196.132.3	A	hlrn-lns-gw01-lb-233.hlrn.qwest.net
206.196.132.4	PTR	hlrn-lns-gw01.inet.qwest.net
206.196.132.4	PTR	hlrn-lns-gw01-lb-234.hlrn.qwest.net
206.196.132.6	A	hlrn-lns-gw01-lb-236.hlrn.qwest.net
206.196.132.21	A	hlrn-lns-gw02-lb-235.hlrn.qwest.net
206.196.132.25	A	hlrn-lns-gw02-lb-239.hlrn.qwest.net
206.196.132.26	A	hlrn-lns-gw02-lb-240.hlrn.qwest.net
206.196.132.33	PTR	hlrn-lns-gw03.inet.qwest.net
206.196.132.33	A+PTR	hlrn-lns-gw03-lb-231.hlrn.qwest.net
206.196.132.35	PTR	hlrn-lns-gw03.inet.qwest.net
206.196.132.35	A+PTR	hlrn-lns-gw03-lb-233.hlrn.qwest.net
206.196.132.36	A+PTR	hlrn-lns-gw03-lb-234.hlrn.qwest.net
206.196.132.36	PTR	hlrn-lns-gw03.inet.qwest.net
206.196.132.37	A	hlrn-lns-gw03-lb-235.hlrn.qwest.net
206.196.132.51	PTR	hlrn-lns-gw04.inet.qwest.net
206.196.132.51	A+PTR	hlrn-lns-gw04-lb-233.hlrn.qwest.net
206.196.132.65	PTR	hlrn-lns-gw05.inet.qwest.net
206.196.132.65	A+PTR	hlrn-lns-gw05-lb-231.hlrn.qwest.net
206.196.132.66	A+PTR	hlrn-lns-gw05-lb-232.hlrn.qwest.net
206.196.132.66	PTR	hlrn-lns-gw05.inet.qwest.net
206.196.132.68	A+PTR	hlrn-lns-gw05-lb-234.hlrn.qwest.net
206.196.132.68	PTR	hlrn-lns-gw05.inet.qwest.net
206.196.132.71	A	hlrn-lns-gw05-lb-237.hlrn.qwest.net
206.196.132.89	A	hlrn-lns-gw06-lb-239.hlrn.qwest.net
206.196.132.128	A	hlrn-lns-gw01-lb-0.hlrn.qwest.net
206.196.132.130	A	hlrn-lns-gw01-lb-3.hlrn.qwest.net
206.196.132.136	A	hlrn-lns-gw02-lb-0.hlrn.qwest.net
206.196.132.137	A	hlrn-lns-gw02-lb-2.hlrn.qwest.net
206.196.132.144	A	hlrn-lns-gw03.inet.qwest.net
206.196.132.160	A	hlrn-lns-gw05.inet.qwest.net
206.196.132.163	PTR	hlrn-lns-gw05.inet.qwest.net
206.196.132.163	A+PTR	hlrn-lns-gw05-lb-4.hlrn.qwest.net
206.196.132.168	A	hlrn-lns-gw06.inet.qwest.net
206.196.133.97	A	mail2.rockyvistahc.com
206.196.133.97	A	mail2.rockyvistauniversity.org
206.196.133.97	A	mail2.rvu.edu
206.196.133.98	A	rvu-hospice.com
206.196.133.113	PTR	cls2-edge-03.inet.qwest.net
206.196.133.113	A	wsablueplanet.net
206.196.133.113	A	wsablueplanet.com
206.196.133.117	PTR	coronasolutions.com
206.196.133.117	PTR	mail.coronasoft.com
206.196.133.117	PTR	www.coronasoft.com
206.196.136.66	PTR	host-206-196-136-66.cust.qwest.net
206.196.136.129	PTR	host-206-196-136-129.cust.qwest.net
206.196.136.226	PTR	host-206-196-136-226.cust.qwest.net
206.196.138.25	A	exellaredo.com
206.196.139.1	PTR	bur-nssp-01.inet.qwest.net
206.196.139.2	PTR	bur-nssp-01-fwsm.inet.qwest.net
206.196.139.22	PTR	bur-nssp-01-fwsm.inet.qwest.net
206.196.139.45	PTR	bur-edge-18.inet.qwest.net
206.196.139.98	PTR	bur-nssp-01-fwsm.inet.qwest.net
206.196.139.101	PTR	bur-nssp-01.inet.qwest.net
206.196.139.102	PTR	bur-nssp-01-fwsm.inet.qwest.net
206.196.139.117	PTR	bur-edge-07.inet.qwest.net
206.196.139.186	PTR	bur-nssp-01-fwsm.inet.qwest.net
206.196.140.55	A	206-196-140-55.dia.static.qwest.net
206.196.140.130	PTR	mail.wdgcpa.com
206.196.140.162	PTR	mx2.heartclinic.com
206.196.140.162	A+PTR	206-196-140-162.dia.static.qwest.net
206.196.140.197	A	mail.vcseye.com
206.196.140.226	PTR	mail.slim4life.com
206.196.141.1	A+PTR	206-196-141-1.dia.static.qwest.net
206.196.141.3	PTR	staticip.com
206.196.141.3	PTR	mail.fullfillment.com
206.196.141.3	PTR	mail.selectflex.com
206.196.141.18	A+PTR	206-196-141-18.dia.static.qwest.net
206.196.141.19	A+PTR	206-196-141-19.dia.static.qwest.net
206.196.141.100	PTR	mail.musd20.org
206.196.141.232	A+PTR	206-196-141-232.dia.static.qwest.net
206.196.141.234	A+PTR	206-196-141-234.dia.static.qwest.net
206.196.141.249	A+PTR	206-196-141-249.dia.static.qwest.net
206.196.141.252	A	mail.sbbiaz.com
206.196.141.255	A	206-196-141-255.dia.static.qwest.net
206.196.142.60	PTR	hlr-svcs-10.inet.qwest.net
206.196.142.142	PTR	hlrn-lns-gw02-lb-239.hlrn.qwest.net
206.196.142.160	PTR	hlrn-lns-gw01-lb-0.hlrn.qwest.net
206.196.142.162	PTR	hlrn-lns-gw01-lb-3.hlrn.qwest.net
206.196.142.162	A+PTR	hlr-radldap-02.inet.qwest.net
206.196.142.197	A+PTR	hlrn-lns-gw04.inet.qwest.net
206.196.142.197	PTR	206.196.142-197.dia.static.qwest.net
206.196.142.201	PTR	hlrn-lns-gw01.hlrn.qwest.net
206.196.142.201	A	hlrn-lns-gw01.inet.qwest.net
206.196.142.206	A	hlr-svcs-hsrp-86.inet.qwest.net