Robtex

Up: 138.122.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 138.122.92.0/23
Down right: 138.122.94.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.122.92.4	A	ns1.gmaestelecom.com.br
138.122.92.4	A	ns1.neosplit.com.br
138.122.92.4	A	ns1.gmaestecnologia.com.br
138.122.92.13	PTR	13.92.122.138.gmaestelecom.com.br
138.122.92.13	A	speed.gmaestelecom.com.br
138.122.92.16	PTR	barracuda.grupogmaes.com
138.122.92.19	A+PTR	mailserver.grupogmaes.com
138.122.92.23	A	grupogmaes.com.br
138.122.92.23	A	brcondominios.com.br
138.122.92.23	A	www.brcondominios.com.br
138.122.92.24	A+PTR	mailserver.gmaestelecom.com.br
138.122.92.24	A	mailserver.apdistribuidora.com.br
138.122.92.24	A	mailserver.gmaessegurancaeletronica.com.br
138.122.92.25	PTR	webserver.gmaestelecom.com.br
138.122.92.28	PTR	28.92.122.138.gmaestelecom.com.br
138.122.92.28	A	gmaes.com.br
138.122.92.28	A	crq9.org.br
138.122.92.30	PTR	mail.crq9.gov.br
138.122.92.39	A+PTR	cpanel01.dc.grupogmaes.com
138.122.92.39	A	grupogmaes.com.br
138.122.92.39	A	crfmg.org.br
138.122.92.44	PTR	mailserver.angra.dc.grupogmaes.com
138.122.92.68	A+PTR	webmail.colombo.pr.gov.br
138.122.92.70	A+PTR	mailserver.colombo.pr.gov.br
138.122.92.74	PTR	fiep01-srv-iai-gms.gmaestelecom.com.br
138.122.92.74	A	www.agenciafiep.com.br
138.122.92.91	PTR	webmail.amargosa.ba.gov.br
138.122.92.106	PTR	www.cedae.com.br
138.122.92.106	A	todagotaconta.com.br
138.122.92.106	A	webserver.todagotaconta.com.br
138.122.95.18	PTR	mailserver01.msg.dc.grupogmaes.com
138.122.95.18	A	ns3.ufrr.br
138.122.95.20	PTR	webmail.saae.iguatu.ce.gov.br
138.122.95.20	A	ufrr.br
138.122.95.21	PTR	webmail.iguatu.ce.gov.br
138.122.95.44	A	msgtrans.com.br