Robtex

Up: 166.49.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 166.49.128.0/18
Down right: 166.49.192.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
166.49.128.32	PTR	166-49-128-32.eu.bt.net
166.49.129.101	PTR	t2a61-l11.uk-lon1.eu.bt.net
166.49.131.128	PTR	166-49-131-128.gia.bt.net
166.49.133.38	PTR	166-49-133-38.eu.bt.net
166.49.134.2	PTR	166-49-134-2.eu.bt.net
166.49.134.65	A	t2a5-fa5-1-0.be-bru.eu.bt.net
166.49.134.81	A	t2c4-xe-11-1-1-0.be-bru.eu.bt.net
166.49.134.133	A	t2c3-ge-11-2-2-0.de-dus.eu.bt.net
166.49.134.161	A	t2a1-p1-1.de-dus.eu.bt.net
166.49.134.169	A	t2a2-s3-0-1.de-dus.eu.bt.net
166.49.134.193	A	t2c3-ge-11-2-0-0.de-dus.eu.bt.net
166.49.135.245	A	cs-ge0-0.uk-glo.eu.bt.net
166.49.137.45	PTR	166-49-137-45.gia.bt.net
166.49.138.68	PTR	166-49-138-68.eu.bt.net
166.49.141.134	PTR	166-49-141-134.eu.bt.net
166.49.143.117	PTR	t2a2-ge0-0-1.es-bar.eu.bt.net
166.49.148.250	A	fire2fw.gtc.net
166.49.149.154	PTR	166-49-149-154.eu.bt.net
166.49.151.130	PTR	166-49-151-130.eu.bt.net
166.49.151.141	A	ixp1-ge-0-2-8-0.us-ash.eu.bt.net
166.49.151.142	A	t1a1-ge0-0-3.us-wdc.eu.bt.net
166.49.152.17	A	t3a1-fa1-0-0.de-haj.eu.bt.net
166.49.153.70	PTR	166-49-153-70.gia.bt.net
166.49.153.186	PTR	t2a4-ge8-2.nl-ams2.eu.bt.net
166.49.153.202	PTR	166-49-153-202.eu.bt.net
166.49.154.221	A+PTR	ns3eu.bt.net
166.49.154.221	A	ns3.bticglobal.net
166.49.156.238	PTR	166-49-156-238.eu.bt.net
166.49.156.238	A	mail.walkaboutinns.net
166.49.156.238	A	mail.walkaboutinns.com
166.49.157.74	PTR	166-49-157-74.eu.bt.net
166.49.157.194	PTR	166-49-157-194.eu.bt.net
166.49.165.95	A+PTR	cs-l0.de-mun.eu.bt.net
166.49.165.177	A+PTR	t2c2-l0.se-sto.eu.bt.net
166.49.168.61	A	t2c4-xe-9-3-0-0.uk-eal.eu.bt.net
166.49.170.34	PTR	166-49-170-34.eu.bt.net
166.49.174.244	A	t2c2-ge8-0.de-mun.eu.bt.net
166.49.175.1	A	t2c1.us-nyb.eu.bt.net
166.49.188.44	A	t2c2-ge0-1.at-vie.eu.bt.net
166.49.193.185	PTR	166-49-193-185.eu.bt.net
166.49.193.222	PTR	166-49-193-222.eu.bt.net
166.49.193.226	A+PTR	mail-schleuse.livingdata.de
166.49.194.0	PTR	166-49-194-0.eu.bt.net
166.49.195.6	PTR	t2c2-ge14-0-0.uk-glo.eu.bt.net
166.49.195.29	A+PTR	t2c2-ge1-0.de-mun.eu.bt.net
166.49.195.157	A+PTR	t2c1-p1-0.de-dus.eu.bt.net
166.49.204.145	A+PTR	t2c2-p2-0.us-nyc.eu.bt.net
166.49.208.57	A	t2c3-xe-9-0-0-0.de-fra.eu.bt.net
166.49.208.69	A+PTR	t2c4-xe-0-0-2-0.uk-lon1.eu.bt.net
166.49.208.133	A+PTR	t2c4-xe-0-1-0-0.lu-lux.eu.bt.net
166.49.208.146	PTR	166-49-208-146.gia.bt.net
166.49.208.146	A	t2c2-p4-0.uk-lon1.eu.bt.net
166.49.210.9	PTR	t2a4-p2-0.nl-ams2.eu.bt.net
166.49.210.9	A	t2a1-p3-1.nl-ams2.eu.bt.net
166.49.210.25	A+PTR	t2c4-ge-9-3-1-0.nl-ams2.eu.bt.net
166.49.210.25	A	t2a1-ge7-2.nl-ams2.eu.bt.net
166.49.211.236	PTR	t2c3-et-3-1-0-0.uk-lon1.eu.bt.net
166.49.224.170	PTR	166-49-224-170.eu.bt.net
166.49.226.38	PTR	166-49-226-38.eu.bt.net
166.49.227.93	PTR	t2c4-xe-0-0-1-184.es-mad3.eu.bt.net
166.49.227.94	PTR	166-49-227-94.gia.bt.net
166.49.227.115	PTR	166-49-227-115.eu.bt.net
166.49.231.34	PTR	166-49-231-34.eu.bt.net
166.49.231.130	PTR	166-49-231-130.eu.bt.net
166.49.232.38	PTR	166-49-232-38.eu.bt.net
166.49.237.16	PTR	t2c2-ge8-0-0.uk-eal.eu.bt.net
166.49.237.182	PTR	t2c3-xe-1-0-0-1.es-mad3.gia.bt.net
166.49.237.229	PTR	t2c4-xe-0-1-1-1.de-fra.eu.bt.net
166.49.239.218	PTR	166-49-239-218.eu.bt.net
166.49.241.86	PTR	166-49-241-86.eu.bt.net
166.49.243.129	PTR	t2c3-xe-0-1-0-0.it-mil2.eu.bt.net
166.49.255.255	PTR	166-49-255-255.eu.bt.net