21516.us - robtex.com

21516.us

DNSSEC⚠️ Not signed
A34.224.55.138🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix
PTRec2-34-224-55-138.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
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=1774412628

Same first word

21516.us

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16521.com
15261.cn
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11652.us
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12516.us
21156.cn
25611.com
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11256.com
16125.com
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26151.us
56211.com
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26511.com
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12651.com
16251.us
52116.cn

DNS History

20 records (3 active, 17 former)

20162017201820192020202120222023202420252026NSns1.parkco2.neustar.bizns2.parkco2.neustar.bizA34.224.55.13834.192.77.11734.200.210.1252.205.48.7852.206.157.22752.5.0.22752.7.114.5152.7.171.20952.73.184.4452.86.21.18854.165.51.16454.175.62.19454.210.234.19354.86.171.108CNAMEpr-www-zipcode-us.expedrion.bizpr-zipcodes-us.neuweb.bizws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.comzip-lb.neuweb.biz
●NSns1.parkco2.neustar.biz2026-03-17 → 2026-03-25 · 2 obs
● 2026-03-17 05:03:08
● 2026-03-25 04:41:04
●NSns2.parkco2.neustar.biz2026-03-17 → 2026-03-25 · 2 obs
● 2026-03-17 05:03:08
● 2026-03-25 04:41:04
○A34.192.77.1172017-04-18 → 2017-04-18 · 4 obs
○ 2016-09-17 12:30:24
● 2017-04-18 17:18:04
○ 2026-03-17 05:03:08
○ 2026-03-25 04:41:04
○A34.200.210.122017-04-18 → 2017-04-18 · 4 obs
○ 2016-09-17 12:30:24
● 2017-04-18 17:18:04
○ 2026-03-17 05:03:08
○ 2026-03-25 04:41:04
●A34.224.55.1382026-03-25 → 2026-03-25 · 2 obs
○ 2026-03-21 12:36:48
● 2026-03-25 04:41:04
○A52.205.48.782026-03-21 → 2026-03-21 · 3 obs
○ 2026-03-17 05:03:08
● 2026-03-21 12:36:48
○ 2026-03-25 04:41:04
○A52.206.157.2272016-09-17 → 2016-09-17 · 4 obs
○ 2016-03-16 00:39:32
● 2016-09-17 12:30:24
○ 2017-04-18 17:18:04
○ 2026-03-25 04:41:04
○A52.5.0.2272015-12-04 → 2015-12-04 · 4 obs
○ 2015-08-15 23:12:54
● 2015-12-04 08:45:46
○ 2016-03-16 00:39:32
○ 2026-03-25 04:41:04
○A52.7.114.512015-08-15 → 2015-08-15 · 3 obs
● 2015-08-15 23:12:54
○ 2026-03-17 05:03:08
○ 2026-03-25 04:41:04
○A52.7.171.2092015-08-15 → 2015-08-15 · 3 obs
● 2015-08-15 23:12:54
○ 2026-03-17 05:03:08
○ 2026-03-25 04:41:04
○A52.73.184.442017-04-18 → 2017-04-18 · 4 obs
○ 2016-09-17 12:30:24
● 2017-04-18 17:18:04
○ 2026-03-17 05:03:08
○ 2026-03-25 04:41:04
○A52.86.21.1882016-03-16 → 2016-03-16 · 4 obs
○ 2015-12-04 08:45:46
● 2016-03-16 00:39:32
○ 2016-09-17 12:30:24
○ 2026-03-25 04:41:04
○A54.165.51.1642016-09-17 → 2016-09-17 · 4 obs
○ 2016-03-16 00:39:32
● 2016-09-17 12:30:24
○ 2017-04-18 17:18:04
○ 2026-03-25 04:41:04
○A54.175.62.1942015-12-04 → 2015-12-04 · 4 obs
○ 2015-08-15 23:12:54
● 2015-12-04 08:45:46
○ 2016-03-16 00:39:32
○ 2026-03-25 04:41:04
○A54.210.234.1932015-08-15 → 2015-08-15 · 3 obs
● 2015-08-15 23:12:54
○ 2026-03-17 05:03:08
○ 2026-03-25 04:41:04
○A54.86.171.1082016-09-17 → 2016-09-17 · 4 obs
○ 2016-03-16 00:39:32
● 2016-09-17 12:30:24
○ 2017-04-18 17:18:04
○ 2026-03-25 04:41:04
○CNAMEpr-www-zipcode-us.expedrion.biz2026-03-17 → 2026-03-17 · 4 obs
○ 2017-04-18 17:18:04
● 2026-03-17 05:03:08
○ 2026-03-21 12:36:48
○ 2026-03-25 04:41:04
○CNAMEpr-zipcodes-us.neuweb.biz2015-12-04 → 2017-04-18 · 5 obs
○ 2015-08-15 23:12:54
● 2015-12-04 08:45:46
● 2017-04-18 17:18:04
○ 2026-03-17 05:03:08
○ 2026-03-25 04:41:04
○CNAMEws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.com2015-12-04 → 2017-04-18 · 5 obs
○ 2015-08-15 23:12:54
● 2015-12-04 08:45:46
● 2017-04-18 17:18:04
○ 2026-03-17 05:03:08
○ 2026-03-25 04:41:04
○CNAMEzip-lb.neuweb.biz2015-08-15 → 2017-04-18 · 4 obs
● 2015-08-15 23:12:54
● 2017-04-18 17:18:04
○ 2026-03-17 05:03:08
○ 2026-03-25 04:41:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
usb.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...-
21516.usns1.parkco2.neustar.biz, ns2.parkco2.neustar.biz-

✅ Authoritative Response

Server:3.220.94.231

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21516.us (unsigned zone)

⏱️ Timing

Total: 273ms | Queries: -

📄 Records

TypeCountSample Data
A134.224.55.138
NS2ns2.parkco2.neustar.biz, ns1.parkco2.neustar.biz
SOA1ns1.parkco2.neustar.biz hostmaster.neust

Analysis

IP Addresses

21516.us points to a single IP number: 34.224.55.138.

Other host names, for instance 90384.us, 28463.us, 32870.us, 06020.us and 24788.us share IP numbers with 21516.us.

Name Servers

Delegation for 21516.us rests with two name servers, ns1.parkco2.neustar.biz and ns2.parkco2.neustar.biz.

21516.us shares the same name server setup as other domains, including 62836.us, 58552.us, 84139.us, 72794.us and 02279.us.

Host names with one IP number: ns1.parkco2.neustar.biz points to 3.220.94.231; ns2.parkco2.neustar.biz points to 3.227.227.44.