85.237.203.171
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Long-established allocation (21y) +6
- Not on any threat blocklist +5
- Has a reverse-DNS (PTR) record +5
- Enterprise allocation +4
- Trust score 85 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- ns-1545.awsdns-01.co.u
- Forward-confirmed (FCrDNS)
- Not checked
- PTR TTL
- 14400 s
- Reverse DNS last checked
- 2026-10-24 10:55 UTC
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Domains hosted
as of 2026-10-24 UTC1
Registrable domains (like example.com) with at least one name resolving to this IP — updated daily from issued.live's DNS data.
Domain data provided by issued.live — for full details visit https://issued.live/pricing
Reverse DNS history
How this IP's reverse DNS (PTR) has changed over time, from our scans.
This IP's reverse DNS changes frequently — the timeline below shows the most recent changes.
- ns-1545.awsdns-01.co.u — Oct 22, 2026 → present
- ns-383.awsdns-47.com — Oct 21, 2026 → Oct 22, 2026
- ns-923.awsdns-51.net — Oct 19, 2026 → Oct 21, 2026
- ns-1545.awsdns-01.co.u — Oct 16, 2026 → Oct 19, 2026
- ns-383.awsdns-47.com — Oct 13, 2026 → Oct 16, 2026
- ns-1302.awsdns-34.org — Oct 11, 2026 → Oct 13, 2026
- ns-1545.awsdns-01.co.u — Oct 7, 2026 → Oct 11, 2026
- ns-923.awsdns-51.net — Oct 6, 2026 → Oct 7, 2026
- ns-383.awsdns-47.com — Oct 5, 2026 → Oct 6, 2026
- ns-1545.awsdns-01.co.u — Oct 4, 2026 → Oct 5, 2026
- ns-383.awsdns-47.com — Oct 3, 2026 → Oct 4, 2026
- ns-923.awsdns-51.net — Oct 2, 2026 → Oct 3, 2026
- ns-383.awsdns-47.com — Oct 1, 2026 → Oct 2, 2026
- ns-923.awsdns-51.net — Sep 29, 2026 → Oct 1, 2026
- ns-383.awsdns-47.com — Sep 28, 2026 → Sep 29, 2026
- ns-1302.awsdns-34.org — Sep 27, 2026 → Sep 28, 2026
- ns-1545.awsdns-01.co.u — Sep 25, 2026 → Sep 27, 2026
- ns-923.awsdns-51.net — Aug 24, 2026 → Sep 25, 2026
- ns-1302.awsdns-34.org — Aug 18, 2026 → Aug 24, 2026
- ns-383.awsdns-47.com — Jul 6, 2026 → Aug 18, 2026
- ns-1545.awsdns-01.co.u — Jun 29, 2026 → Jul 6, 2026
- ns-923.awsdns-51.net — Jun 13, 2026 → Jun 29, 2026
- ns-1545.awsdns-01.co.u — Jun 11, 2026 → Jun 13, 2026
Network Allocation for 85.237.203.171
- CIDR range
- 85.237.203.0/24
- IP range (int)
- 1,441,647,360 — 1,441,647,615
- Prefix length
- /24
- Organization
- Tier.Net Technologies LLC
- ASN
- AS397423
- ASN name
- Tier.Net Technologies LLC
- Location
- Dallas, Texas, United States
- Coordinates
- 32.813700, -96.870400
- Accuracy radius
- 20 km
- Postal code
- 75247
- Regional Internet Registry
- RIPE
- Allocated
- 2005-05-27
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-10-25 05:24:13
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
RIR Ownership History
Atom feed ⇲Allocation changes captured from regional internet registry (RIR) delegation files, re-imported every six hours, for ranges that have contained this IP.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | New Allocation | — | GB |
See the full history for 85.237.203.0/24.
Frequently Asked Questions
Who owns 85.237.203.171?
85.237.203.171 is allocated to Tier.Net Technologies LLC (AS397423), registered in Dallas, United States.
Where is 85.237.203.171 located?
The geolocation for 85.237.203.171 maps to Dallas, United States based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.
What network is 85.237.203.171 on?
85.237.203.171 belongs to the 85.237.203.0/24 network block announced by AS397423. This range contains 256 addresses.
Does 85.237.203.171 have a reverse DNS record?
Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.
Neighbors
Other addresses in the same /24.
