51907.us - robtex.com

51907.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=1784255583

Same first word

51907.us
51907.cn

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DNS History

23 records (3 active, 20 former)

20162017201820192020202120222023202420252026NSns1.parkco2.neustar.bizns2.parkco2.neustar.bizA52.206.71.93.212.149.18544.218.129.21844.222.57.2352.0.47.13152.2.4.25052.200.159.4952.21.10.6952.22.224.15052.3.211.3652.5.244.1152.6.237.24052.7.196.23252.87.27.18954.164.124.2354.164.182.6354.164.242.14554.89.39.158CNAMEpr-zipcodes-us.neuweb.bizws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.comzip-lb.neuweb.biz
●NSns1.parkco2.neustar.biz2026-06-12 → 2026-07-17 · 2 obs
● 2026-06-12 11:33:50
● 2026-07-17 02:59:06
●NSns2.parkco2.neustar.biz2026-06-12 → 2026-07-17 · 2 obs
● 2026-06-12 11:33:50
● 2026-07-17 02:59:06
○A3.212.149.1852026-06-13 → 2026-06-13 · 4 obs
○ 2026-06-12 11:33:50
● 2026-06-13 18:52:28
○ 2026-06-14 22:20:04
○ 2026-07-17 02:59:06
○A44.218.129.2182026-06-12 → 2026-06-12 · 4 obs
○ 2017-12-19 08:07:00
● 2026-06-12 11:33:50
○ 2026-06-13 18:52:28
○ 2026-07-17 02:59:06
○A44.222.57.232026-06-14 → 2026-06-14 · 3 obs
○ 2026-06-13 18:52:28
● 2026-06-14 22:20:04
○ 2026-07-17 02:59:06
○A52.0.47.1312015-05-22 → 2015-05-22 · 3 obs
● 2015-05-22 15:55:00
○ 2017-12-19 08:07:00
○ 2026-07-17 02:59:06
○A52.2.4.2502016-04-06 → 2016-04-06 · 4 obs
○ 2016-01-04 13:42:36
● 2016-04-06 06:24:00
○ 2016-12-29 19:29:36
○ 2026-07-17 02:59:06
○A52.200.159.492016-04-06 → 2016-04-06 · 4 obs
○ 2016-01-04 13:42:36
● 2016-04-06 06:24:00
○ 2016-12-29 19:29:36
○ 2026-07-17 02:59:06
●A52.206.71.92026-07-17 → 2026-07-17 · 2 obs
○ 2026-06-14 22:20:04
● 2026-07-17 02:59:06
○A52.21.10.692015-10-11 → 2015-10-11 · 4 obs
○ 2015-05-22 15:55:00
● 2015-10-11 03:31:50
○ 2016-01-04 13:42:36
○ 2026-07-17 02:59:06
○A52.22.224.1502016-12-29 → 2016-12-29 · 4 obs
○ 2016-04-06 06:24:00
● 2016-12-29 19:29:36
○ 2017-12-19 08:07:00
○ 2026-07-17 02:59:06
○A52.3.211.362015-10-11 → 2015-10-11 · 4 obs
○ 2015-05-22 15:55:00
● 2015-10-11 03:31:50
○ 2016-01-04 13:42:36
○ 2026-07-17 02:59:06
○A52.5.244.112015-05-22 → 2015-05-22 · 3 obs
● 2015-05-22 15:55:00
○ 2017-12-19 08:07:00
○ 2026-07-17 02:59:06
○A52.6.237.2402015-10-11 → 2015-10-11 · 4 obs
○ 2015-05-22 15:55:00
● 2015-10-11 03:31:50
○ 2016-01-04 13:42:36
○ 2026-07-17 02:59:06
○A52.7.196.2322015-05-22 → 2015-05-22 · 3 obs
● 2015-05-22 15:55:00
○ 2017-12-19 08:07:00
○ 2026-07-17 02:59:06
○A52.87.27.1892016-04-06 → 2016-04-06 · 4 obs
○ 2016-01-04 13:42:36
● 2016-04-06 06:24:00
○ 2016-12-29 19:29:36
○ 2026-07-17 02:59:06
○A54.164.124.232016-01-04 → 2016-01-04 · 4 obs
○ 2015-10-11 03:31:50
● 2016-01-04 13:42:36
○ 2016-04-06 06:24:00
○ 2026-07-17 02:59:06
○A54.164.182.632016-12-29 → 2016-12-29 · 4 obs
○ 2016-04-06 06:24:00
● 2016-12-29 19:29:36
○ 2017-12-19 08:07:00
○ 2026-07-17 02:59:06
○A54.164.242.1452016-01-04 → 2016-01-04 · 4 obs
○ 2015-10-11 03:31:50
● 2016-01-04 13:42:36
○ 2016-04-06 06:24:00
○ 2026-07-17 02:59:06
○A54.89.39.1582016-12-29 → 2016-12-29 · 4 obs
○ 2016-04-06 06:24:00
● 2016-12-29 19:29:36
○ 2017-12-19 08:07:00
○ 2026-07-17 02:59:06
○CNAMEpr-zipcodes-us.neuweb.biz2015-10-11 → 2016-12-29 · 5 obs
○ 2015-05-22 15:55:00
● 2015-10-11 03:31:50
● 2016-12-29 19:29:36
○ 2017-12-19 08:07:00
○ 2026-07-17 02:59:06
○CNAMEws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.com2015-10-11 → 2016-12-29 · 5 obs
○ 2015-05-22 15:55:00
● 2015-10-11 03:31:50
● 2016-12-29 19:29:36
○ 2017-12-19 08:07:00
○ 2026-07-17 02:59:06
○CNAMEzip-lb.neuweb.biz2015-05-22 → 2017-12-19 · 4 obs
● 2015-05-22 15:55:00
● 2017-12-19 08:07:00
○ 2026-06-12 11:33:50
○ 2026-07-17 02:59:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
usm.cctld.us, n.cctld.us, w.cctld.us, y.cctld.us...-
51907.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 51907.us (unsigned zone)

⏱️ Timing

Total: 391ms | 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

51907.us points to a single IP number: 52.206.71.9.

Additional host names — 47957.us, 65398.us, 09025.us and two others — share IP numbers with 51907.us.

Name Servers

51907.us is served by two delegated name servers, ns1.parkco2.neustar.biz and ns2.parkco2.neustar.biz.

51907.us shares its name server setup with other domains, including 84360.us, 09855.us, 34976.us and two others.

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.