Robtex

Up: 13.107.160.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 13.107.160.0/26
Down right: 13.107.160.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
13.107.160.1	A+PTR	ns4-01.azure-dns.info
13.107.160.1	A	ns2prod.10219.azuredns-prd.info
13.107.160.1	A	ns4-01.mono-for-android.net.msftnet.org
13.107.160.2	A+PTR	ns4-02.azure-dns.info
13.107.160.2	A	ns6.eastech.com.hk
13.107.160.2	A	ns2prod.39626.azuredns-prd.info
13.107.160.3	PTR	ns4-03.azure-dns.info
13.107.160.3	A	ns2prod.8409.azuredns-prd.info
13.107.160.3	A	ns4-03.goodbeecredit.ro
13.107.160.4	PTR	ns4-04.azure-dns.info
13.107.160.4	A	ns4-04.agnitio.net.msftnet.org
13.107.160.4	A	ns2prod.196.azuredns-prd.info
13.107.160.5	PTR	ns4-05.azure-dns.info
13.107.160.5	A	ns2prod.27325.azuredns-prd.info
13.107.160.5	A	ns2prod.40930.azuredns-prd.info
13.107.160.6	A+PTR	ns4-06.azure-dns.info
13.107.160.6	A	ns4-06.ozwald.biz.msftnet.org
13.107.160.6	A	ns2prod.6893.azuredns-prd.info
13.107.160.7	A+PTR	ns4-07.azure-dns.info
13.107.160.7	A	ns4-07.o365wpa.com.msftnet.org
13.107.160.8	A+PTR	ns4-08.azure-dns.info
13.107.160.8	A	ns4-08.swiftkeyhealthcare.com.msftnet.org
13.107.160.8	A	ns6.hpservice.com.hk
13.107.160.9	A+PTR	ns4-09.azure-dns.info
13.107.160.9	A	ns4-09.microsoftsecurity.se.msft.info
13.107.160.9	A	ns4-09.ceipmsn.com.msftnet.org
13.107.160.10	A+PTR	ns4-10.azure-dns.info