Robtex

Up: 199.249.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 199.249.20.0/23
Down right: 199.249.22.0/23

IP	Type	Hostname
199.249.20.3	A+PTR	signup.mci.com
199.249.20.4	A	pmqareg01.mci.com
199.249.20.5	A+PTR	pm02end.mci.com
199.249.20.6	PTR	theneighborhood.com
199.249.20.7	A	pmqahyd02.mci.com
199.249.20.9	A+PTR	agentdirect.verizonbusiness.com
199.249.20.11	A+PTR	mciwmas-newsfeed.mci.com
199.249.20.16	A	euat-nhood.mci.com
199.249.20.20	A	search.verizonbusiness.com
199.249.20.24	A	pm01emgr.mci.com
199.249.20.25	A	pm02emgr.mci.com
199.249.20.26	A+PTR	pm03emgr.mci.com
199.249.20.27	A+PTR	pm04emgr.mci.com
199.249.20.29	A+PTR	euat-oam.mci.com
199.249.20.30	A	euat-consumer.mci.com
199.249.20.37	PTR	messagecenter.mci.com
199.249.20.80	A+PTR	euat-business.mci.com
199.249.20.81	A	pmreg02.mci.com
199.249.20.82	A	pmvirt01.mci.com
199.249.20.83	A	pmhyd01.mci.com
199.249.20.84	A	pmhyd02.mci.com
199.249.20.145	A	pmeldr1-p.mcilink.com
199.249.20.146	A	pmeldr1-s.mcilink.com
199.249.20.160	A+PTR	mcimail.mci.com
199.249.20.165	A	pm01pwp.mci.com
199.249.20.167	A	pm01cwp.mci.com
199.249.20.168	A	pm02cwp.mci.com
199.249.20.172	A	pm01cftp.mci.com
199.249.20.173	A	tecnoguia.wcom.com
199.249.20.173	A	pm02cftp.mci.com
199.249.20.174	A	pm01ftp.mci.com
199.249.20.176	A	pmops02.mci.com
199.249.20.229	A+PTR	mciwreg.mci.com
199.249.21.1	A	opssvcreports.verizonbusiness.com
199.249.21.1	A	opssvcreports.mci.com
199.249.21.3	A	ndcapc03-nr.vzbi.com
199.249.21.7	A+PTR	ndcapc02.mci.com
199.249.21.8	A+PTR	ndcapc03.mci.com
199.249.21.9	A	ndctfnm-css1.vzbi.com
199.249.21.11	A	opssvcreports-uat.mci.com
199.249.21.16	A	ndcapc02-em.mcilink.com
199.249.21.25	A	ndcapc02-a.mci.com
199.249.21.26	A+PTR	ndcapc03-a.mci.com
199.249.21.27	A	ndcosvr2.mci.com
199.249.21.30	A	nrdws062.mci.com
199.249.21.35	A	tfnm01.mci.com
199.249.21.36	A	tfnm02.mci.com
199.249.21.37	A	tfnm03.mci.com
199.249.21.38	A	tfnm04.mci.com
199.249.21.39	A	tfnm05.mci.com
199.249.21.40	A	tfnm06.mci.com
199.249.21.41	A	tfnm07.mci.com
199.249.21.42	A+PTR	ndbnm.mci.com
199.249.21.47	A	tfnm13.mci.com
199.249.21.48	A+PTR	tfnm14.verizonbusiness.com
199.249.21.49	A	tfnm15.verizonbusiness.com
199.249.21.50	A	tfnm16.verizonbusiness.com
199.249.21.52	A+PTR	ndcapc02-ua.mci.com
199.249.21.53	A+PTR	ndc-swaccess01.mci.com
199.249.21.56	A	ndcapc03-em.mcilink.com
199.249.21.63	A	nrdws032.mci.com
199.249.21.64	A	ndcipr001p.ip-relay.com
199.249.21.65	A	www.ip-relay.net
199.249.21.65	A	ip-relay.net
199.249.21.68	A	ndctib05.mci.com
199.249.21.70	A	reg.ip-relay.com
199.249.21.71	A	reg.ip-relay.com
199.249.21.71	A	myiprelay.net
199.249.21.73	A	reg.ip-relay.com
199.249.21.75	A	ndcapc02-nms.mci.com
199.249.21.76	A	ndcapc03-mci.mcilink.com
199.249.21.84	A+PTR	ndcapc03-ia.mci.com
199.249.21.85	A	ndcapc03-tvs.mci.com
199.249.21.86	A	tfnm18.mci.com
199.249.21.87	A	tfnm19.mci.com
199.249.21.88	A	tfnm20.mci.com
199.249.21.91	A	tfnm23.mci.com
199.249.21.92	A	tfnm24.verizonbusiness.com
199.249.21.93	A	tfnm25.verizonbusiness.com
199.249.21.94	A	tfnm26.mci.com
199.249.22.65	PTR	e-meetings-vip.vzbi.com
199.249.22.113	A	ndcsrv197.vzbi.com
199.249.22.135	A+PTR	nm04.verizonbusiness.com
199.249.22.138	A	nmvip01.verizonbusiness.com
199.249.22.147	A+PTR	nmvip04.verizonbusiness.com
199.249.22.151	A	nmndcvip04.vzbi.com
199.249.22.225	A+PTR	web2-new.vbns.net
199.249.23.4	A	ndcws04.vzbi.com
199.249.23.6	A	ndcws06.vzbi.com
199.249.23.7	PTR	ndcwcws07.vzbi.com
199.249.23.7	A	webcenter2.verizonbusiness.com
199.249.23.7	A	webcenter2.gslb.verizonbusiness.com
199.249.23.9	A+PTR	webcenter8-ndc.vzbi.com
199.249.23.9	A	webcenter8.verizonbusiness.com
199.249.23.11	PTR	ndcwcmail01.vzbi.com
199.249.23.11	A	webcenter2.verizonbusiness.com
199.249.23.11	A	webcenter2.gslb.verizonbusiness.com
199.249.23.18	PTR	ndcwcws08.vzbi.com
199.249.23.18	A	webcenter2.verizonbusiness.com
199.249.23.19	PTR	ndcwcws09.vzbi.com
199.249.23.19	A	webcenter2.verizonbusiness.com
199.249.23.116	A+PTR	ndcfs01.vzbi.com
199.249.23.116	A	askwebcenter.com
199.249.23.129	A+PTR	norvrp01.mci.com
199.249.23.130	PTR	norvrp02.mci.com
199.249.23.131	PTR	norvrp04.mci.com
199.249.23.134	PTR	norvrp03.mci.com
199.249.23.135	A	norvrp07.mci.com
199.249.23.136	A	messagecenter.mci.com