MXLIST.NET - 21.8.in-addr.arpa
Search for IP or hostnames:
21.8.in-addr.arpa checked at 2025-10-24T10:07:38.769Z 181ms 39/39/39 100% R:1521.8.in-addr.arpa
| NS | ns1.level3.net | ||||||
| A | 209.244.0.1🇺🇸 LEVEL3 | ||||||
| PTR | ns1.level3.net | ||||||
| NS | ns2.level3.net | ||||||
| A | 209.244.0.2🇺🇸 LEVEL3 | ||||||
| PTR | ns2.level3.net | ||||||
8.in-addr.arpa
| NS | r.arin.net | ||||||
| NS | u.arin.net | ||||||
| NS | x.arin.net | ||||||
| NS | y.arin.net | ||||||
| NS | z.arin.net | ||||||
| NS | arin.authdns.ripe.net | ||||||
Up
181.21.8.in-addr.arpa |
33.21.8.in-addr.arpa |
209.21.8.in-addr.arpa |
5.21.8.in-addr.arpa |
168.21.8.in-addr.arpa |
Starts with same word
Starts similarily
AI analysis
21.8.in-addr.arpa is a parent of 181.21.8.in-addr.arpa, 33.21.8.in-addr.arpa, 209.21.8.in-addr.arpa, 5.21.8.in-addr.arpa and 168.21.8.in-addr.arpa.
21.8.in-addr.arpa is delegated to two name servers: ns1.level3.net and ns2.level3.net.
21.8.in-addr.arpa uses the same name server setup as other domains such as 0.209.in-addr.arpa, 192.8.in-addr.arpa, 95.198.in-addr.arpa, 47.8.in-addr.arpa and 6.4.in-addr.arpa.
21.8.in-addr.arpa shares name servers with other domains at least partially, for example 173.90.207.in-addr.arpa, 123.207.in-addr.arpa, 157.90.207.in-addr.arpa, statecollege1.level3.net and sanjose1.level3.net.
Host names with one IP number:
ns1.level3.net points to: 209.244.0.1.
ns2.level3.net points to: 209.244.0.2.