IPLIST.NET - 51.1.in-addr.arpa
Search for IP or hostnames:
51.1.in-addr.arpa checked at 2025-10-08T05:39:56.730Z 934ms 63/63/63 100% R:1251.1.in-addr.arpa
| NS | dns5.edu.cn | ||||||
| A | 2402:f000:1:801::8:30 🇨🇳 Tsinghua University | ||||||
| PTR | ns5.cernet.net | ||||||
| PTR | dns.tsinghua.edu.cn | ||||||
| A | 101.4.126.67🇨🇳 CERNET-CN | ||||||
| A | 101.4.126.235🇨🇳 CERNET-CN | ||||||
| A | 166.111.8.30🇨🇳 CERNET-CN | ||||||
| PTR | dns.tsinghua.edu.cn | ||||||
| NS | dns6.edu.cn | ||||||
| A | 2001:dd9::203 🇨🇳 CRIS-CERNET-AS | ||||||
| PTR | ns2.cernet.net | ||||||
| A | 101.4.126.27🇨🇳 CERNET-CN | ||||||
| A | 101.4.126.179🇨🇳 CERNET-CN | ||||||
| A | 103.137.60.203🇨🇳 CERNET-CN | ||||||
| PTR | ns2.cernet.net | ||||||
1.in-addr.arpa
| NS | ns1.apnic.net | ||||||
| NS | ns2.apnic.net | ||||||
| NS | rirns.arin.net | ||||||
| NS | ns3.lacnic.net | ||||||
| NS | apnic.authdns.ripe.net | ||||||
Starts with same word
Starts similarily
AI analysis
51.1.in-addr.arpa's delegation uses two name servers, dns5.edu.cn and dns6.edu.cn.
51.1.in-addr.arpa shares the same name server setup as other domains, for example 223.125.in-addr.arpa, 33.210.in-addr.arpa, 203.118.in-addr.arpa, 209.180.in-addr.arpa and 206.58.in-addr.arpa.
51.1.in-addr.arpa at least partially shares name servers with other domains, for example 0.5.2.0.1.0.0.2.ip6.arpa, 111.166.in-addr.arpa and 0.0.0.f.2.0.4.2.ip6.arpa.
these name servers are commonly used together with ns2.cernet.net, dns2.tsinghua.edu.cn and dns.tsinghua.edu.cn.
Host names with four IP numbers:
dns5.edu.cn points to 2402:f000:1:801::8:30, 101.4.126.67, 101.4.126.235 and 166.111.8.30.
dns6.edu.cn points to 2001:dd9::203, 101.4.126.27, 101.4.126.179 and 103.137.60.203.