21871.us - robtex.com

21871.us

DNSSEC⚠️ Not signed
A32.194.99.109
PTRec2-32-194-99-109.compute-1.amazonaws.com
NSns1.parkco2.neustar.biz ⭐
A3.220.94.231🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
PTRec2-3-220-94-231.compute-1.amazonaws.com
NSns2.parkco2.neustar.biz
A3.227.227.44🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix
PTRec2-3-227-227-44.compute-1.amazonaws.com
TXTv=spf1 -all
SOAns1.parkco2.neustar.bizhostmaster@neustar.biz 2026-03-06 #1

us

DNSSEC🔒 Signed (DS record present)
NSa.cctld.us ⭐
NSb.cctld.us
NSf.cctld.us
NSk.cctld.us
NSm.cctld.us
NSn.cctld.us
NSw.cctld.us
NSx.cctld.us
NSy.cctld.us
SOAa.cctld.usadmin@tldns.godaddy serial=1778510135

Same first word

21871.us

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DNS History

21 records (3 active, 18 former)

20162017201820192020202120222023202420252026NSns1.parkco2.neustar.bizns2.parkco2.neustar.bizA32.194.99.10952.0.72.3952.1.135.25052.1.72.10852.20.55.1952.201.96.2352.21.0.5752.3.92.1352.6.216.4852.7.114.5152.7.171.20952.71.73.7252.86.63.19854.152.198.7454.174.175.25154.210.234.193CNAMEpr-zipcodes-us.neuweb.bizws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.comzip-lb.neuweb.biz
●NSns1.parkco2.neustar.biz2026-04-10 → 2026-05-11 · 2 obs
● 2026-04-10 07:40:40
● 2026-05-11 15:05:24
●NSns2.parkco2.neustar.biz2026-04-10 → 2026-05-11 · 2 obs
● 2026-04-10 07:40:40
● 2026-05-11 15:05:24
●A32.194.99.1092026-05-11 → 2026-05-11 · 2 obs
○ 2017-08-09 07:59:04
● 2026-05-11 15:05:24
○A52.0.72.392016-10-31 → 2016-10-31 · 4 obs
○ 2016-04-23 02:34:22
● 2016-10-31 03:08:20
○ 2017-08-09 07:59:04
○ 2026-05-11 15:05:24
○A52.1.135.2502015-11-04 → 2015-11-04 · 4 obs
○ 2015-06-26 20:21:14
● 2015-11-04 09:59:52
○ 2016-01-27 21:54:36
○ 2026-05-11 15:05:24
○A52.1.72.1082016-04-23 → 2016-04-23 · 4 obs
○ 2016-01-27 21:54:36
● 2016-04-23 02:34:22
○ 2016-10-31 03:08:20
○ 2026-05-11 15:05:24
○A52.20.55.192015-11-04 → 2015-11-04 · 4 obs
○ 2015-06-26 20:21:14
● 2015-11-04 09:59:52
○ 2016-01-27 21:54:36
○ 2026-05-11 15:05:24
○A52.201.96.232016-04-23 → 2016-04-23 · 4 obs
○ 2016-01-27 21:54:36
● 2016-04-23 02:34:22
○ 2016-10-31 03:08:20
○ 2026-05-11 15:05:24
○A52.21.0.572015-11-04 → 2015-11-04 · 4 obs
○ 2015-06-26 20:21:14
● 2015-11-04 09:59:52
○ 2016-01-27 21:54:36
○ 2026-05-11 15:05:24
○A52.3.92.132016-04-23 → 2016-04-23 · 4 obs
○ 2016-01-27 21:54:36
● 2016-04-23 02:34:22
○ 2016-10-31 03:08:20
○ 2026-05-11 15:05:24
○A52.6.216.482016-10-31 → 2016-10-31 · 4 obs
○ 2016-04-23 02:34:22
● 2016-10-31 03:08:20
○ 2017-08-09 07:59:04
○ 2026-05-11 15:05:24
○A52.7.114.512015-06-26 → 2015-06-26 · 3 obs
● 2015-06-26 20:21:14
○ 2017-08-09 07:59:04
○ 2026-05-11 15:05:24
○A52.7.171.2092015-06-26 → 2015-06-26 · 3 obs
● 2015-06-26 20:21:14
○ 2017-08-09 07:59:04
○ 2026-05-11 15:05:24
○A52.71.73.722016-01-27 → 2016-01-27 · 4 obs
○ 2015-11-04 09:59:52
● 2016-01-27 21:54:36
○ 2016-04-23 02:34:22
○ 2026-05-11 15:05:24
○A52.86.63.1982016-10-31 → 2016-10-31 · 4 obs
○ 2016-04-23 02:34:22
● 2016-10-31 03:08:20
○ 2017-08-09 07:59:04
○ 2026-05-11 15:05:24
○A54.152.198.742016-01-27 → 2016-01-27 · 4 obs
○ 2015-11-04 09:59:52
● 2016-01-27 21:54:36
○ 2016-04-23 02:34:22
○ 2026-05-11 15:05:24
○A54.174.175.2512016-01-27 → 2016-01-27 · 4 obs
○ 2015-11-04 09:59:52
● 2016-01-27 21:54:36
○ 2016-04-23 02:34:22
○ 2026-05-11 15:05:24
○A54.210.234.1932015-06-26 → 2015-06-26 · 3 obs
● 2015-06-26 20:21:14
○ 2017-08-09 07:59:04
○ 2026-05-11 15:05:24
○CNAMEpr-zipcodes-us.neuweb.biz2015-11-04 → 2016-10-31 · 5 obs
○ 2015-06-26 20:21:14
● 2015-11-04 09:59:52
● 2016-10-31 03:08:20
○ 2017-08-09 07:59:04
○ 2026-05-11 15:05:24
○CNAMEws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.com2015-11-04 → 2016-10-31 · 5 obs
○ 2015-06-26 20:21:14
● 2015-11-04 09:59:52
● 2016-10-31 03:08:20
○ 2017-08-09 07:59:04
○ 2026-05-11 15:05:24
○CNAMEzip-lb.neuweb.biz2015-06-26 → 2017-08-09 · 4 obs
● 2015-06-26 20:21:14
● 2017-08-09 07:59:04
○ 2026-04-10 07:40:40
○ 2026-05-11 15:05:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
usb.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...-
21871.usns2.parkco2.neustar.biz, ns1.parkco2.neustar.biz-

✅ Authoritative Response

Server:3.220.94.231

NS records: ns2.parkco2.neustar.biz, ns1.parkco2.neustar.biz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21871.us (unsigned zone)

⏱️ Timing

Total: 839ms | Queries: -

📄 Records

TypeCountSample Data
A132.196.56.1
NS2ns1.parkco2.neustar.biz, ns2.parkco2.neustar.biz
TXT1v=spf1 -all
SOA1ns1.parkco2.neustar.biz hostmaster.neust

Analysis

IP Addresses

21871.us resolves to a single IP address: 32.194.99.109.

Other host names including 00302.us, 77257.us, 80151.us, 03048.us and 69419.us share IP numbers with 21871.us.

Name Servers

21871.us's delegation uses two name servers, ns1.parkco2.neustar.biz and ns2.parkco2.neustar.biz.

21871.us shares the same name server setup as other domains, for example 45348.us, 00108.us, 62453.us, 73577.us and 00614.us.

Host names with a single IP:

ns1.parkco2.neustar.biz points to 3.220.94.231.

ns2.parkco2.neustar.biz points to 3.227.227.44.