Robtex

Up: 191.252.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 191.252.8.0/22
Down right: 191.252.12.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
191.252.12.11	A+PTR	mail1211.hm950.lwdlv.com.br
191.252.12.11	A	emktlw-18.com
191.252.12.12	A+PTR	mail1212.hm950.lwdlv.com.br
191.252.12.26	A+PTR	mail1226.hm950.lwdlv.com.br
191.252.12.26	A	emktlw-17.com
191.252.12.33	A+PTR	mail1233.hm950.lwdlv.com.br
191.252.12.36	A+PTR	mail1236.hm950.lwdlv.com.br
191.252.12.36	A	emktlw-20.com
191.252.12.39	A+PTR	mail1239.hm950.lwdlv.com.br
191.252.12.50	A+PTR	mail1250.hm950.lwdlv.com.br
191.252.13.198	A+PTR	mail13198.hm950.lwdlv.com.br
191.252.13.208	A+PTR	mail13208.hm950.lwdlv.com.br
191.252.13.234	A+PTR	mail13234.hm950.lwdlv.com.br
191.252.13.240	A+PTR	mail13240.hm950.lwdlv.com.br
191.252.13.247	A+PTR	mail13247.hm950.lwdlv.com.br
191.252.14.2	A+PTR	mcegress-14-lw-2.correio.biz
191.252.14.3	A+PTR	mcegress-14-lw-3.correio.biz
191.252.14.4	A+PTR	mcegress-14-lw-4.correio.biz
191.252.14.5	A+PTR	mcegress-14-lw-5.correio.biz
191.252.14.8	A+PTR	mcegress-14-lw-8.correio.biz
191.252.14.9	A+PTR	mcegress-14-lw-9.correio.biz
191.252.14.10	A+PTR	mcegress-14-lw-10.correio.biz
191.252.14.11	A+PTR	mcegress-14-lw-11.correio.biz
191.252.14.16	A+PTR	mcegress-14-lw-16.correio.biz
191.252.14.17	A+PTR	mcegress-14-lw-17.correio.biz
191.252.14.18	A+PTR	mcegress-14-lw-18.correio.biz
191.252.14.19	A+PTR	mcegress-14-lw-19.correio.biz
191.252.14.24	A+PTR	mcegress-14-lw-24.correio.biz
191.252.14.25	A+PTR	mcegress-14-lw-25.correio.biz
191.252.14.26	A+PTR	mcegress-14-lw-26.correio.biz
191.252.14.27	A+PTR	mcegress-14-lw-27.correio.biz
191.252.14.194	A	mail.exchangecorp.com.br
191.252.14.194	A	mail.cotesa.com.br
191.252.14.194	A	mail.guerrajunior.com.br
191.252.15.12	A+PTR	mail1512.hm950.lwdlv.com.br
191.252.15.15	A+PTR	mail1515.hm950.lwdlv.com.br
191.252.15.18	A+PTR	mail1518.hm950.lwdlv.com.br
191.252.15.20	PTR	mail1520.hm950.lwdlv.com.br
191.252.15.21	A+PTR	mail1521.hm950.lwdlv.com.br
191.252.15.25	A+PTR	mail1525.hm950.lwdlv.com.br
191.252.15.33	A+PTR	mail1533.hm950.lwdlv.com.br
191.252.15.35	A+PTR	mail1535.hm950.lwdlv.com.br
191.252.15.48	A+PTR	mail1548.hm950.lwdlv.com.br
191.252.15.55	A+PTR	mail1555.hm950.lwdlv.com.br
191.252.15.55	A	pakenhamproduce.com.au
191.252.15.60	A+PTR	mail1560.hm950.lwdlv.com.br
191.252.15.66	A+PTR	mail1566.hm8307.lwdlv.com.br
191.252.15.68	A+PTR	mail168.hm8307.lwdlv.com.br
191.252.15.77	A+PTR	mail177.hm8307.lwdlv.com.br
191.252.15.82	PTR	mail182.hm8307.lwdlv.com.br
191.252.15.83	A+PTR	mail183.hm8307.lwdlv.com.br
191.252.15.86	PTR	mail186.hm8307.lwdlv.com.br
191.252.15.90	A+PTR	mail190.hm8307.lwdlv.com.br
191.252.15.100	A+PTR	mail1100.hm8307.lwdlv.com.br
191.252.15.104	A+PTR	mail1104.hm8307.lwdlv.com.br
191.252.15.107	A+PTR	mail1107.hm8307.lwdlv.com.br
191.252.15.109	A+PTR	mail1109.hm8307.lwdlv.com.br
191.252.15.114	A+PTR	mail1114.hm8307.lwdlv.com.br
191.252.15.117	A+PTR	mail1117.hm8307.lwdlv.com.br
191.252.15.119	A+PTR	mail1119.hm8307.lwdlv.com.br
191.252.15.119	A	emktlw-19.com
191.252.15.122	A+PTR	mail1122.hm8307.lwdlv.com.br
191.252.15.124	A+PTR	mail1124.hm8307.lwdlv.com.br