39904.us - robtex.com

39904.us

DNSSEC⚠️ Not signed
A52.206.71.9🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix
PTRec2-52-206-71-9.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=1784335093

Same first word

Similar names

DNS History

18 records (3 active, 15 former)

20162017201820192020202120222023202420252026NSns1.parkco2.neustar.bizns2.parkco2.neustar.bizA52.206.71.934.193.179.6252.1.102.13952.2.46.24052.7.114.5152.7.171.20952.73.46.10252.86.33.17154.152.215.8854.210.234.19354.236.175.554.80.242.22454.85.187.109CNAMEpr-zipcodes-us.neuweb.bizws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.comzip-lb.neuweb.biz
NSns1.parkco2.neustar.biz2026-07-04 → 2026-07-18 · 2 obs
● 2026-07-04 18:24:56
● 2026-07-18 00:57:04
NSns2.parkco2.neustar.biz2026-07-04 → 2026-07-18 · 2 obs
● 2026-07-04 18:24:56
● 2026-07-18 00:57:04
A34.193.179.622017-03-29 → 2017-03-29 · 4 obs
○ 2016-07-14 01:11:48
● 2017-03-29 11:02:48
○ 2020-03-21 06:16:24
○ 2026-07-18 00:57:04
A52.1.102.1392015-12-20 → 2015-12-20 · 4 obs
○ 2015-08-01 21:11:00
● 2015-12-20 01:38:46
○ 2016-07-14 01:11:48
○ 2026-07-18 00:57:04
A52.2.46.2402017-03-29 → 2017-03-29 · 4 obs
○ 2016-07-14 01:11:48
● 2017-03-29 11:02:48
○ 2020-03-21 06:16:24
○ 2026-07-18 00:57:04
A52.206.71.92026-07-18 → 2026-07-18 · 2 obs
○ 2026-07-04 18:24:56
● 2026-07-18 00:57:04
A52.7.114.512015-08-01 → 2015-08-01 · 3 obs
● 2015-08-01 21:11:00
○ 2026-07-04 18:24:56
○ 2026-07-18 00:57:04
A52.7.171.2092015-08-01 → 2015-08-01 · 3 obs
● 2015-08-01 21:11:00
○ 2026-07-04 18:24:56
○ 2026-07-18 00:57:04
A52.73.46.1022016-07-14 → 2016-07-14 · 4 obs
○ 2015-12-20 01:38:46
● 2016-07-14 01:11:48
○ 2017-03-29 11:02:48
○ 2026-07-18 00:57:04
A52.86.33.1712016-07-14 → 2016-07-14 · 4 obs
○ 2015-12-20 01:38:46
● 2016-07-14 01:11:48
○ 2017-03-29 11:02:48
○ 2026-07-18 00:57:04
A54.152.215.882015-12-20 → 2015-12-20 · 4 obs
○ 2015-08-01 21:11:00
● 2015-12-20 01:38:46
○ 2016-07-14 01:11:48
○ 2026-07-18 00:57:04
A54.210.234.1932015-08-01 → 2015-08-01 · 3 obs
● 2015-08-01 21:11:00
○ 2026-07-04 18:24:56
○ 2026-07-18 00:57:04
A54.236.175.52016-07-14 → 2016-07-14 · 4 obs
○ 2015-12-20 01:38:46
● 2016-07-14 01:11:48
○ 2017-03-29 11:02:48
○ 2026-07-18 00:57:04
A54.80.242.2242026-07-04 → 2026-07-04 · 3 obs
○ 2020-03-21 06:16:24
● 2026-07-04 18:24:56
○ 2026-07-18 00:57:04
A54.85.187.1092017-03-29 → 2017-03-29 · 4 obs
○ 2016-07-14 01:11:48
● 2017-03-29 11:02:48
○ 2020-03-21 06:16:24
○ 2026-07-18 00:57:04
CNAMEpr-zipcodes-us.neuweb.biz2015-12-20 → 2017-03-29 · 5 obs
○ 2015-08-01 21:11:00
● 2015-12-20 01:38:46
● 2017-03-29 11:02:48
○ 2020-03-21 06:16:24
○ 2026-07-18 00:57:04
CNAMEws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.com2015-12-20 → 2017-03-29 · 5 obs
○ 2015-08-01 21:11:00
● 2015-12-20 01:38:46
● 2017-03-29 11:02:48
○ 2020-03-21 06:16:24
○ 2026-07-18 00:57:04
CNAMEzip-lb.neuweb.biz2015-08-01 → 2020-03-21 · 4 obs
● 2015-08-01 21:11:00
● 2020-03-21 06:16:24
○ 2026-07-04 18:24:56
○ 2026-07-18 00:57:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
usb.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...-
39904.usns1.parkco2.neustar.biz, ns2.parkco2.neustar.biz-

✅ Authoritative Response

Server:3.227.227.44

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 39904.us (unsigned zone)

⏱️ Timing

Total: 315ms | Queries: -

📄 Records

TypeCountSample Data
A152.206.71.9
NS2ns2.parkco2.neustar.biz, ns1.parkco2.neustar.biz
TXT1v=spf1 -all
SOA1ns1.parkco2.neustar.biz hostmaster.neust

Analysis

IP Addresses

39904.us points to a single IP number: 52.206.71.9.

Additional host names — 50010.us, 70611.us, 41655.us and two others — share IP numbers with 39904.us.

Name Servers

The NS records for 39904.us delegate to ns1.parkco2.neustar.biz and ns2.parkco2.neustar.biz.

39904.us shares its name server setup with other domains, including 07924.us, 99398.us, 14123.us and two others.

39904.us and other domains like www.58518.us share at least a portion of their name servers.

Both ns1.parkco2.neustar.biz and ns2.parkco2.neustar.biz have a single IP address each — ns1.parkco2.neustar.biz resolves to 3.220.94.231 while ns2.parkco2.neustar.biz resolves to 3.227.227.44.