21331.us - robtex.com
21331.us
| DNSSEC | ⚠️ Not signed | ||||||
| A | 34.198.10.7🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix | ||||||
| PTR | ec2-34-198-10-7.compute-1.amazonaws.com | ||||||
| NS | ns1.parkco2.neustar.biz ⭐ | ||||||
| A | 3.220.94.231🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix | ||||||
| PTR | ec2-3-220-94-231.compute-1.amazonaws.com | ||||||
| NS | ns2.parkco2.neustar.biz | ||||||
| A | 3.227.227.44🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix | ||||||
| PTR | ec2-3-227-227-44.compute-1.amazonaws.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.parkco2.neustar.bizhostmaster@neustar.biz 2026-03-06 #1 | ||||||
us
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.cctld.us ⭐ | ||||||
| NS | b.cctld.us | ||||||
| NS | f.cctld.us | ||||||
| NS | k.cctld.us | ||||||
| NS | m.cctld.us | ||||||
| NS | n.cctld.us | ||||||
| NS | w.cctld.us | ||||||
| NS | x.cctld.us | ||||||
| NS | y.cctld.us | ||||||
| SOA | a.cctld.usadmin@tldns.godaddy serial=1785190264 | ||||||
Same first word
21331.us |
Similar names
DNS History
20 records (3 active, 17 former)
●NSns1.parkco2.neustar.biz2026-07-02 → 2026-07-27 · 2 obs
● 2026-07-27 22:21:48
●NSns2.parkco2.neustar.biz2026-07-02 → 2026-07-27 · 2 obs
● 2026-07-27 22:21:48
○A100.57.182.1022026-07-17 → 2026-07-17 · 3 obs
● 2026-07-17 08:50:02
○ 2026-07-27 22:21:48
●A34.198.10.72026-07-27 → 2026-07-27 · 2 obs
● 2026-07-27 22:21:48
○A52.206.212.412016-08-09 → 2016-08-09 · 4 obs
● 2016-08-09 07:18:00
○ 2026-07-02 05:44:06
○ 2026-07-27 22:21:48
○A52.206.43.262016-08-09 → 2016-08-09 · 4 obs
● 2016-08-09 07:18:00
○ 2026-07-02 05:44:06
○ 2026-07-27 22:21:48
○A52.207.113.782016-08-09 → 2016-08-09 · 4 obs
● 2016-08-09 07:18:00
○ 2026-07-02 05:44:06
○ 2026-07-27 22:21:48
○A52.5.55.972016-03-24 → 2016-03-24 · 4 obs
● 2016-03-24 02:27:48
○ 2016-08-09 07:18:00
○ 2026-07-27 22:21:48
○A52.7.114.512015-08-11 → 2015-08-11 · 3 obs
○ 2026-07-02 05:44:06
○ 2026-07-27 22:21:48
○A52.7.149.762015-12-06 → 2015-12-06 · 4 obs
● 2015-12-06 14:59:18
○ 2016-03-24 02:27:48
○ 2026-07-27 22:21:48
○A52.7.171.2092015-08-11 → 2015-08-11 · 3 obs
○ 2026-07-02 05:44:06
○ 2026-07-27 22:21:48
○A52.86.21.1882016-03-24 → 2016-03-24 · 4 obs
● 2016-03-24 02:27:48
○ 2016-08-09 07:18:00
○ 2026-07-27 22:21:48
○A54.165.136.1902016-03-24 → 2016-03-24 · 4 obs
● 2016-03-24 02:27:48
○ 2016-08-09 07:18:00
○ 2026-07-27 22:21:48
○A54.173.230.762015-12-06 → 2015-12-06 · 4 obs
● 2015-12-06 14:59:18
○ 2016-03-24 02:27:48
○ 2026-07-27 22:21:48
○A54.210.234.1932015-08-11 → 2015-08-11 · 3 obs
○ 2026-07-02 05:44:06
○ 2026-07-27 22:21:48
○A54.80.242.2242026-07-02 → 2026-07-02 · 4 obs
● 2026-07-02 05:44:06
○ 2026-07-17 08:50:02
○ 2026-07-27 22:21:48
○CNAMEpr-www-zipcode-us.expedrion.biz2026-07-02 → 2026-07-27 · 2 obs
○ 2026-07-27 22:21:48
○CNAMEpr-zipcodes-us.neuweb.biz2015-12-06 → 2016-08-09 · 5 obs
● 2015-12-06 14:59:18
● 2016-08-09 07:18:00
○ 2026-07-02 05:44:06
○ 2026-07-27 22:21:48
○CNAMEws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.com2015-12-06 → 2016-08-09 · 5 obs
● 2015-12-06 14:59:18
● 2016-08-09 07:18:00
○ 2026-07-02 05:44:06
○ 2026-07-27 22:21:48
○CNAMEzip-lb.neuweb.biz2015-08-11 → 2016-08-09 · 4 obs
● 2016-08-09 07:18:00
○ 2026-07-02 05:44:06
○ 2026-07-27 22:21:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us... | - |
| 21331.us | ns2.parkco2.neustar.biz, ns1.parkco2.neustar.biz | - |
✅ Authoritative Response
Server:3.227.227.44
NS records: ns2.parkco2.neustar.biz, ns1.parkco2.neustar.biz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21331.us (unsigned zone)
⏱️ Timing
Total: 301ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 34.198.10.7 |
| NS | 2 | ns2.parkco2.neustar.biz, ns1.parkco2.neustar.biz |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.parkco2.neustar.biz hostmaster.neust |
Analysis
IP Addresses
21331.us has exactly one IP address — 34.198.10.7.
46754.us, 00382.us, 64830.us plus two other host names have IP numbers in common with 21331.us.
Name Servers
21331.us has two authoritative name servers — ns1.parkco2.neustar.biz and ns2.parkco2.neustar.biz.
The name server configuration of 21331.us is shared with other domains, for instance 26440.us, 87400.us, 86745.us and two others.
The name servers for 21331.us overlap at least partially with those of other domains — for example www.14140.us.
ns1.parkco2.neustar.biz → 3.220.94.231 and ns2.parkco2.neustar.biz → 3.227.227.44: one IP number per host name.