Robtex

Up: 209.227.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 209.227.128.0/19
Down right: 209.227.160.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
209.227.128.228	A+PTR	cr1-jfk.primustel.com
209.227.128.230	A	cr2-jc2.primustel.com
209.227.128.231	A	ts-paix.primustel.com
209.227.128.232	A	cr1-jbr.primustel.com
209.227.129.2	PTR	p5-0.cr1-75b.primustel.com
209.227.129.13	PTR	p4-0.pr1-lax.primustel.com
209.227.129.14	PTR	p1-0.cr2-75b.primustel.com
209.227.129.128	A	cr1-mia.primustel.com
209.227.129.129	A	cr2-mia.primustel.com
209.227.129.142	PTR	g2-0.cr1-lax.primustel.com
209.227.129.177	PTR	g7-2.cr2-jc2.primustel.com
209.227.129.195	PTR	g2-0-40.cr2-75b.primustel.com
209.227.129.196	PTR	g6-0-40.pr1-jfk.primustel.com
209.227.130.33	A	ar1-jfk.primustel.com
209.227.130.35	A	pr1-jfk.primustel.com
209.227.130.138	PTR	mail.lgvllc.com
209.227.130.138	PTR	customer.ar1-jfk.primustel.com
209.227.130.237	PTR	mu1.ar2-jc2.primustel.com
209.227.131.33	A	ar2-jfk.primustel.com
209.227.134.27	A	dc-rsa.primustel.com
209.227.134.29	A	ns1.nms.primustel.com
209.227.134.33	A	ar1-dca.primustel.com
209.227.134.35	A	pr1-dca.primustel.com
209.227.134.84	A	dcflow.primustel.com
209.227.134.198	PTR	sectek.dca.primustel.com
209.227.134.250	A	ar2-tpa.primustel.com
209.227.135.32	A	ts-dca.primustel.com
209.227.135.249	A	jbr-noc.primustel.com
209.227.137.5	A	f5-0.ar2b.dal.primustel.com
209.227.137.6	A	e0-1.tsb.dal.primustel.com
209.227.137.32	A	ts-dal.primustel.com
209.227.137.33	A	ar2-dal.primustel.com
209.227.138.33	A	ar1-sjc.primustel.com
209.227.138.35	A	pr1-sjc.primustel.com
209.227.139.37	PTR	f2-1.10.pr1-paix.primustel.com
209.227.142.222	PTR	customer.ar1-jfk.primustel.com
209.227.142.222	A	mail2.wachusettbank.com
209.227.143.33	A	ar2-bos.primustel.com
209.227.145.33	PTR	lo0.ar2-atl.primustel.com
209.227.145.33	A	ar2-atl.primustel.com
209.227.146.245	PTR	s2-0-1-0.ar1-mia.primustel.com
209.227.147.32	A	ts-fll.primustel.com
209.227.148.2	PTR	g1-0-10.cr1-lax.primustel.com
209.227.148.34	A	ar1-lax.primustel.com
209.227.149.33	A	ar2-lax.primustel.com
209.227.149.35	A	pr1-lax.primustel.com
209.227.150.5	A	f5-0.ar2-jc2.primustel.com
209.227.151.33	A	ar2-jc2.primustel.com
209.227.153.33	A	ar2-den.primustel.com
209.227.154.33	A	dca-dos.primustel.com
209.227.154.254	PTR	a7-0-110.cr1.sjc.primustel.com
209.227.156.35	A	cr1-tyo.primustel.com
209.227.158.33	A+PTR	ar1-sju.primustel.com
209.227.159.33	A	ar2-sju.primustel.com
209.227.164.1	PTR	ns1.primusvoip.com
209.227.164.12	PTR	ns2.primusvoip.com
209.227.164.12	A	ns3.primusvoip.com
209.227.165.143	PTR	delirium.voip.primustel.com
209.227.165.143	A	delirium.primusvoip.com
209.227.165.143	A	delirium.telegroup.com
209.227.165.145	PTR	desire.voip.primustel.com
209.227.165.145	A	smtp.primusvoip.com
209.227.165.145	A	desire.primusvoip.com
209.227.166.2	PTR	bos-corp-2.primushost.com
209.227.166.64	PTR	bos-corp-64.primushost.com
209.227.166.142	A+PTR	webdrive.primustel.com
209.227.166.150	A	brix.primustel.com
209.227.166.152	A	mclwldev01.primustel.com
209.227.166.154	A	imap.primustel.com
209.227.167.6	A	portal.primustel.com
209.227.167.12	A	primusxtension.com
209.227.167.12	A	primusbiz.com
209.227.167.12	A	www.primusbiz.com
209.227.167.75	PTR	brix.primustel.com
209.227.167.131	A	primuslink.net
209.227.167.131	A	primuslink.us
209.227.167.131	A	primuslink.com
209.227.167.150	A	primusvoip.org
209.227.167.170	PTR	lingo.com
209.227.167.192	A	primusprofessionalservices.com
209.227.167.192	A	primustel-services.com
209.227.167.193	A	lingocallkorea.com
209.227.167.193	A	lingokorea.com
209.227.167.199	PTR	www.smarttalkmobile.com
209.227.169.21	A	outpost.primustel.com
209.227.170.1	PTR	test.test.com
209.227.170.3	A	pstngw2.b2tecs.com
209.227.170.6	A	pstngw1.b2tecs.com
209.227.170.12	A	pbx.b2tecs.com
209.227.170.82	A	ns1.b2tecs.com
209.227.170.85	A+PTR	mail.b2tecs.com
209.227.170.85	PTR	mail.broadsolv.com
209.227.170.85	PTR	mail.indtai.com
209.227.170.87	A	seneca-environmental.com
209.227.178.194	PTR	adaptivenetworks.com
209.227.179.35	PTR	mail.fhlbboston.com
209.227.179.39	PTR	www.fhlbboston.com
209.227.180.1	PTR	test.test.com
209.227.181.197	A+PTR	mail.jmann.com
209.227.182.20	PTR	thebeaconllc.com
209.227.185.15	PTR	srv1.nert.com
209.227.185.100	A	sekscontact6462.stoute2onenightstand.info
209.227.185.100	A	zuqiubisaizhongxueshengzuowen.yangji9.com
209.227.185.100	A	mail.tridentsys.com
209.227.185.172	A	fw.nert.com
209.227.186.1	PTR	test.test.com
209.227.188.131	PTR	f4-0.cr2-jbr.primustel.com
209.227.188.254	A+PTR	corp-gw.primustel.com
209.227.189.2	PTR	test.dsdial.net
209.227.189.211	A+PTR	mail.primustel.com
209.227.189.216	A+PTR	webmail.ptgi.com
209.227.189.236	A	survey.primustel.com
209.227.189.241	A	mclwlprod01.primustel.com