77521.us - robtex.com

77521.us

DNSSEC⚠️ Not signed
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=1777260763

Same first word

77521.xyz
77521.us
77521.cn
77521.net.cn

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DNS History

17 records (2 active, 15 former)

20162017201820192020202120222023202420252026NSns1.parkco2.neustar.bizns2.parkco2.neustar.bizA3.211.187.21152.200.239.11852.4.106.2552.7.114.5152.7.149.7652.7.171.20952.7.81.24252.72.101.17352.86.39.13054.173.230.7654.210.234.19354.210.49.166CNAMEpr-zipcodes-us.neuweb.bizws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.comzip-lb.neuweb.biz
●NSns1.parkco2.neustar.biz2026-03-28 → 2026-04-27 · 2 obs
● 2026-03-28 12:36:08
● 2026-04-27 03:58:50
●NSns2.parkco2.neustar.biz2026-03-28 → 2026-04-27 · 2 obs
● 2026-03-28 12:36:08
● 2026-04-27 03:58:50
○A3.211.187.2112026-03-28 → 2026-03-28 · 4 obs
○ 2019-01-08 12:53:52
● 2026-03-28 12:36:08
○ 2026-03-29 14:11:08
○ 2026-04-27 03:58:50
○A52.200.239.1182017-02-09 → 2017-02-09 · 4 obs
○ 2016-03-10 18:15:16
● 2017-02-09 16:04:28
○ 2019-01-08 12:53:52
○ 2026-04-27 03:58:50
○A52.4.106.252017-02-09 → 2017-02-09 · 4 obs
○ 2016-03-10 18:15:16
● 2017-02-09 16:04:28
○ 2019-01-08 12:53:52
○ 2026-04-27 03:58:50
○A52.7.114.512015-08-21 → 2015-08-21 · 3 obs
● 2015-08-21 22:47:58
○ 2017-02-09 16:04:28
○ 2026-04-27 03:58:50
○A52.7.149.762015-12-08 → 2015-12-08 · 4 obs
○ 2015-08-21 22:47:58
● 2015-12-08 23:20:18
○ 2016-03-10 18:15:16
○ 2026-04-27 03:58:50
○A52.7.171.2092015-08-21 → 2015-08-21 · 3 obs
● 2015-08-21 22:47:58
○ 2017-02-09 16:04:28
○ 2026-04-27 03:58:50
○A52.7.81.2422016-03-10 → 2016-03-10 · 4 obs
○ 2015-12-08 23:20:18
● 2016-03-10 18:15:16
○ 2017-02-09 16:04:28
○ 2026-04-27 03:58:50
○A52.72.101.1732017-02-09 → 2017-02-09 · 4 obs
○ 2016-03-10 18:15:16
● 2017-02-09 16:04:28
○ 2019-01-08 12:53:52
○ 2026-04-27 03:58:50
○A52.86.39.1302016-03-10 → 2016-03-10 · 4 obs
○ 2015-12-08 23:20:18
● 2016-03-10 18:15:16
○ 2017-02-09 16:04:28
○ 2026-04-27 03:58:50
○A54.173.230.762015-12-08 → 2015-12-08 · 4 obs
○ 2015-08-21 22:47:58
● 2015-12-08 23:20:18
○ 2016-03-10 18:15:16
○ 2026-04-27 03:58:50
○A54.210.234.1932015-08-21 → 2015-08-21 · 3 obs
● 2015-08-21 22:47:58
○ 2017-02-09 16:04:28
○ 2026-04-27 03:58:50
○A54.210.49.1662016-03-10 → 2016-03-10 · 4 obs
○ 2015-12-08 23:20:18
● 2016-03-10 18:15:16
○ 2017-02-09 16:04:28
○ 2026-04-27 03:58:50
○CNAMEpr-zipcodes-us.neuweb.biz2015-12-08 → 2017-02-09 · 5 obs
○ 2015-08-21 22:47:58
● 2015-12-08 23:20:18
● 2017-02-09 16:04:28
○ 2019-01-08 12:53:52
○ 2026-04-27 03:58:50
○CNAMEws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.com2015-12-08 → 2017-02-09 · 5 obs
○ 2015-08-21 22:47:58
● 2015-12-08 23:20:18
● 2017-02-09 16:04:28
○ 2019-01-08 12:53:52
○ 2026-04-27 03:58:50
○CNAMEzip-lb.neuweb.biz2015-08-21 → 2019-01-08 · 4 obs
● 2015-08-21 22:47:58
● 2019-01-08 12:53:52
○ 2026-03-28 12:36:08
○ 2026-04-27 03:58:50

🔍 DNS Trace

Analysis

Name Servers

77521.us is delegated to two name servers: ns1.parkco2.neustar.biz and ns2.parkco2.neustar.biz.

77521.us shares the same name server setup as 94795.us, 66863.us, 66815.us, 97799.us and 36429.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.