91904.us - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

91904.us

DNSSEC⚠️ Not signed
A54.166.145.148🇺🇸 Amazon54.166.0.0/15 EC2 IAD prefix
PTRec2-54-166-145-148.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=1786994145

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Previous names

91872.us
91874.us
91876.us
91878.us
9188.us
91880.us
91882.us
91885.us
91891.us
91892.us
91894.us
91896.us
91897.us
91898.us
91899.us
918ck.us
919.us
9190.us
91901.us

Next names

91908.us
91909.us
9191.us
91911.us
91912.us
91918.us
91919.us
9191av.us
9192.us
91921.us
91922.us
91927.us
9193.us
91936.us
91940.us
91942.us
91944.us
91945.us
91947.us
91949.us

DNS History

20 records (3 active, 17 former)

20162017201820192020202120222023202420252026NSns1.parkco2.neustar.bizns2.parkco2.neustar.bizA54.166.145.14834.199.152.25152.1.187.25052.201.203.24652.202.9.24452.21.10.6952.4.203.13052.4.218.10952.5.156.24152.5.55.9752.6.114.12552.6.237.24054.152.42.4154.175.20.5254.209.87.199CNAMEpr-zipcodes-us.neuweb.bizws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.comzip-lb.neuweb.biz
●NSns1.parkco2.neustar.biz2026-08-17 → 2026-08-17 · 1 obs
● 2026-08-17 19:54:56
●NSns2.parkco2.neustar.biz2026-08-17 → 2026-08-17 · 1 obs
● 2026-08-17 19:54:56
○A34.199.152.2512017-04-06 → 2017-04-06 · 3 obs
○ 2016-09-15 23:57:00
● 2017-04-06 22:20:02
○ 2026-08-17 19:54:56
○A52.1.187.2502015-05-04 → 2015-05-04 · 2 obs
● 2015-05-04 23:12:50
○ 2026-08-17 19:54:56
○A52.201.203.2462016-09-15 → 2016-09-15 · 4 obs
○ 2016-04-02 11:38:54
● 2016-09-15 23:57:00
○ 2017-04-06 22:20:02
○ 2026-08-17 19:54:56
○A52.202.9.2442016-09-15 → 2016-09-15 · 4 obs
○ 2016-04-02 11:38:54
● 2016-09-15 23:57:00
○ 2017-04-06 22:20:02
○ 2026-08-17 19:54:56
○A52.21.10.692015-10-18 → 2015-10-18 · 4 obs
○ 2015-05-04 23:12:50
● 2015-10-18 17:29:16
○ 2015-12-24 06:01:18
○ 2026-08-17 19:54:56
○A52.4.203.1302015-12-24 → 2015-12-24 · 4 obs
○ 2015-10-18 17:29:16
● 2015-12-24 06:01:18
○ 2016-04-02 11:38:54
○ 2026-08-17 19:54:56
○A52.4.218.1092017-04-06 → 2017-04-06 · 3 obs
○ 2016-09-15 23:57:00
● 2017-04-06 22:20:02
○ 2026-08-17 19:54:56
○A52.5.156.2412016-09-15 → 2016-09-15 · 4 obs
○ 2016-04-02 11:38:54
● 2016-09-15 23:57:00
○ 2017-04-06 22:20:02
○ 2026-08-17 19:54:56
○A52.5.55.972016-04-02 → 2016-04-02 · 4 obs
○ 2015-12-24 06:01:18
● 2016-04-02 11:38:54
○ 2016-09-15 23:57:00
○ 2026-08-17 19:54:56
○A52.6.114.1252015-05-04 → 2015-05-04 · 2 obs
● 2015-05-04 23:12:50
○ 2026-08-17 19:54:56
○A52.6.237.2402015-10-18 → 2015-10-18 · 4 obs
○ 2015-05-04 23:12:50
● 2015-10-18 17:29:16
○ 2015-12-24 06:01:18
○ 2026-08-17 19:54:56
○A54.152.42.412015-12-24 → 2015-12-24 · 4 obs
○ 2015-10-18 17:29:16
● 2015-12-24 06:01:18
○ 2016-04-02 11:38:54
○ 2026-08-17 19:54:56
●A54.166.145.1482026-08-17 → 2026-08-17 · 2 obs
○ 2017-04-06 22:20:02
● 2026-08-17 19:54:56
○A54.175.20.522015-05-04 → 2015-05-04 · 2 obs
● 2015-05-04 23:12:50
○ 2026-08-17 19:54:56
○A54.209.87.1992017-04-06 → 2017-04-06 · 3 obs
○ 2016-09-15 23:57:00
● 2017-04-06 22:20:02
○ 2026-08-17 19:54:56
○CNAMEpr-zipcodes-us.neuweb.biz2015-10-18 → 2017-04-06 · 4 obs
○ 2015-05-04 23:12:50
● 2015-10-18 17:29:16
● 2017-04-06 22:20:02
○ 2026-08-17 19:54:56
○CNAMEws-pr-web-zipcodes-525549249.us-east-1.elb.amazonaws.com2015-10-18 → 2017-04-06 · 4 obs
○ 2015-05-04 23:12:50
● 2015-10-18 17:29:16
● 2017-04-06 22:20:02
○ 2026-08-17 19:54:56
○CNAMEzip-lb.neuweb.biz2015-05-04 → 2017-04-06 · 3 obs
● 2015-05-04 23:12:50
● 2017-04-06 22:20:02
○ 2026-08-17 19:54:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
usb.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...-
91904.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 91904.us (unsigned zone)

⏱️ Timing

Total: 2104ms | Queries: -

📄 Records

TypeCountSample Data
A154.166.145.148
NS2ns2.parkco2.neustar.biz, ns1.parkco2.neustar.biz
TXT1v=spf1 -all
SOA1ns1.parkco2.neustar.biz hostmaster.neust

Analysis

IP Addresses

91904.us resolves to one IP address: 54.166.145.148.

52067.us, 37295.us, 42195.us and two other host names share IP numbers with 91904.us.

Name Servers

91904.us is delegated to two name servers: ns1.parkco2.neustar.biz and ns2.parkco2.neustar.biz.

91904.us uses the same name servers as several other domains — among them 51519.us, 58282.us, 70270.us and two more.

ns1.parkco2.neustar.biz → 3.220.94.231 and ns2.parkco2.neustar.biz → 3.227.227.44: one IP number per host name.