72521.us - robtex.com

72521.us

DNSSEC⚠️ Not signed
A18.213.233.234🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix
PTRec2-18-213-233-234.compute-1.amazonaws.com
NSns1.parkco2.neustar.biz ⭐ ⚠️ Not in zone NS records
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 ⚠️ Not in zone NS records
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=1776025974

Same first word

72521.us

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DNS History

15 records (3 active, 12 former)

20162017201820192020202120222023202420252026NSns1.parkco2.neustar.bizns2.parkco2.neustar.bizA18.213.233.23452.204.45.15552.21.10.6952.3.211.3652.4.114.18952.6.237.24052.86.21.18854.152.17.12354.208.235.7354.209.252.214CNAMEpr-zipcodes-us.neuweb.bizws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.comzip-lb.neuweb.biz
●NSns1.parkco2.neustar.biz2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 09:12:46
● 2026-04-12 21:05:40
●NSns2.parkco2.neustar.biz2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 09:12:46
● 2026-04-12 21:05:40
●A18.213.233.2342026-04-11 → 2026-04-12 · 3 obs
○ 2017-05-25 22:42:50
● 2026-04-11 09:12:46
● 2026-04-12 21:05:40
○A52.204.45.1552016-07-22 → 2016-07-22 · 4 obs
○ 2016-03-16 05:21:26
● 2016-07-22 13:27:38
○ 2017-05-25 22:42:50
○ 2026-04-12 21:05:40
○A52.21.10.692015-08-26 → 2015-08-26 · 3 obs
● 2015-08-26 10:56:16
○ 2017-05-25 22:42:50
○ 2026-04-12 21:05:40
○A52.3.211.362015-08-26 → 2015-08-26 · 3 obs
● 2015-08-26 10:56:16
○ 2017-05-25 22:42:50
○ 2026-04-12 21:05:40
○A52.4.114.1892015-12-18 → 2015-12-18 · 4 obs
○ 2015-08-26 10:56:16
● 2015-12-18 23:14:10
○ 2016-03-16 05:21:26
○ 2026-04-12 21:05:40
○A52.6.237.2402015-08-26 → 2015-08-26 · 3 obs
● 2015-08-26 10:56:16
○ 2017-05-25 22:42:50
○ 2026-04-12 21:05:40
○A52.86.21.1882016-03-16 → 2016-03-16 · 4 obs
○ 2015-12-18 23:14:10
● 2016-03-16 05:21:26
○ 2016-07-22 13:27:38
○ 2026-04-12 21:05:40
○A54.152.17.1232016-07-22 → 2016-07-22 · 4 obs
○ 2016-03-16 05:21:26
● 2016-07-22 13:27:38
○ 2017-05-25 22:42:50
○ 2026-04-12 21:05:40
○A54.208.235.732016-07-22 → 2016-07-22 · 4 obs
○ 2016-03-16 05:21:26
● 2016-07-22 13:27:38
○ 2017-05-25 22:42:50
○ 2026-04-12 21:05:40
○A54.209.252.2142015-12-18 → 2015-12-18 · 4 obs
○ 2015-08-26 10:56:16
● 2015-12-18 23:14:10
○ 2016-03-16 05:21:26
○ 2026-04-12 21:05:40
○CNAMEpr-zipcodes-us.neuweb.biz2015-12-18 → 2016-07-22 · 5 obs
○ 2015-08-26 10:56:16
● 2015-12-18 23:14:10
● 2016-07-22 13:27:38
○ 2017-05-25 22:42:50
○ 2026-04-12 21:05:40
○CNAMEws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.com2015-12-18 → 2016-07-22 · 5 obs
○ 2015-08-26 10:56:16
● 2015-12-18 23:14:10
● 2016-07-22 13:27:38
○ 2017-05-25 22:42:50
○ 2026-04-12 21:05:40
○CNAMEzip-lb.neuweb.biz2015-08-26 → 2017-05-25 · 4 obs
● 2015-08-26 10:56:16
● 2017-05-25 22:42:50
○ 2026-04-11 09:12:46
○ 2026-04-12 21:05:40

🔍 DNS Trace

Analysis

IP Addresses

72521.us resolves to one IP number: 18.213.233.234.

other host names including 99046.us, 35017.us, 92630.us, 49299.us and 54741.us share IP numbers with 72521.us.

Name Servers

72521.us is delegated to two name servers ns1.parkco2.neustar.biz and ns2.parkco2.neustar.biz.

72521.us shares the same name server setup as other domains, for instance 32071.us, 33564.us, 33651.us, 20046.us and 53797.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