IPLIST.NET - 3.21.4.in-addr.arpa
Search for IP or hostnames:
3.21.4.in-addr.arpa checked at 2025-10-06T07:23:58.817Z 183ms 45/45/45 100% R:133.21.4.in-addr.arpa
| NS | dnsauth1.sys.gtei.net | ||||||
| A | 4.2.49.2🇺🇸 Lumen AS3356 | ||||||
| PTR | dnsauth1.level3.net | ||||||
| NS | dnsauth2.sys.gtei.net | ||||||
| A | 4.2.49.3🇺🇸 Lumen AS3356 | ||||||
| PTR | dnsauth2.level3.net | ||||||
| NS | dnsauth3.sys.gtei.net | ||||||
| A | 4.2.49.4🇺🇸 Lumen AS3356 | ||||||
| PTR | dnsauth3.level3.net | ||||||
21.4.in-addr.arpa
| NS | dnsauth1.sys.gtei.net | ||||||
| NS | dnsauth2.sys.gtei.net | ||||||
| NS | dnsauth3.sys.gtei.net | ||||||
Up
160.3.21.4.in-addr.arpa |
130.3.21.4.in-addr.arpa |
140.3.21.4.in-addr.arpa |
200.3.21.4.in-addr.arpa |
199.3.21.4.in-addr.arpa |
132.3.21.4.in-addr.arpa |
88.3.21.4.in-addr.arpa |
146.3.21.4.in-addr.arpa |
129.3.21.4.in-addr.arpa |
Starts with same word
Starts similarily
AI analysis
3.21.4.in-addr.arpa is a parent of 160.3.21.4.in-addr.arpa, 130.3.21.4.in-addr.arpa, 140.3.21.4.in-addr.arpa, 200.3.21.4.in-addr.arpa and 199.3.21.4.in-addr.arpa, plus a few other host names.
The domain 3.21.4.in-addr.arpa is delegated to three name servers: dnsauth1.sys.gtei.net, dnsauth2.sys.gtei.net and dnsauth3.sys.gtei.net.
3.21.4.in-addr.arpa shares name servers with other domains at least partially, for instance crc.ricoh.com, 227.40.4.in-addr.arpa, 178.34.4.in-addr.arpa, 177.23.4.in-addr.arpa and 55.40.4.in-addr.arpa.
these name servers are often used with gateway.crc.ricoh.com, hyperion.haystack.edu and planck.haystack.edu.
Host names with a single IP number:
dnsauth1.sys.gtei.net points to 4.2.49.2.
dnsauth2.sys.gtei.net points to 4.2.49.3.
dnsauth3.sys.gtei.net points to 4.2.49.4.