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 (26y) +6
- Not on any threat blocklist +5
- Trust score 76 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Reverse DNS history
How this IP's reverse DNS (PTR) has changed over time, from our scans.
Reverse-DNS changes between Jul 10, 2026 and Sep 27, 2026 were not recorded; the current PTR is shown from its earliest retained observation.
- no PTR — since at least Sep 27, 2026 → present
- nxdomain-7-3-143-213.pipe.co stable — Jul 10, 2026 → Sep 27, 2026
Network Allocation for 213.143.3.7
- CIDR range
- 213.143.0.0/21
- IP range (int)
- 3,582,918,656 — 3,582,920,703
- Prefix length
- /21
- Organization
- ASK4 Limited
- ASN
- AS41230
- ASN name
- ASK4 Limited
- Location
- London, England, United Kingdom
- Coordinates
- 51.508100, -0.127800
- Accuracy radius
- 10 km
- Postal code
- EC1A
- Regional Internet Registry
- RIPE
- Allocated
- 2000-01-17
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-09-22 04:11:27
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
Frequently Asked Questions
Who owns 213.143.3.7?
213.143.3.7 is allocated to ASK4 Limited (AS41230), registered in London, United Kingdom.
Where is 213.143.3.7 located?
The geolocation for 213.143.3.7 maps to London, United Kingdom 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 213.143.3.7 on?
213.143.3.7 belongs to the 213.143.0.0/21 network block announced by AS41230. This range contains 2,048 addresses.
Does 213.143.3.7 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.
