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 (15y) +6
- Not on any threat blocklist +5
- Trust score 76 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network Allocation for 171.220.251.99
- CIDR range
- 171.220.250.0/23
- IP range (int)
- 2,883,385,856 — 2,883,386,367
- Prefix length
- /23
- Organization
- Sichuan Chuanxn IDC
- ASN
- AS139220
- ASN name
- Sichuan Chuanxn IDC
- Location
- China
- Coordinates
- 34.773200, 113.722000
- Accuracy radius
- 1000 km
- Regional Internet Registry
- APNIC
- Allocated
- 2011-03-04
- Data source(s)
- maxmind_asn, ipinfo_lite, maxmind_city, maxmind_country
- Last updated
- 2026-06-09 06:05:32
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 171.220.251.99?
171.220.251.99 is allocated to Sichuan Chuanxn IDC (AS139220), registered in China.
Where is 171.220.251.99 located?
The geolocation for 171.220.251.99 maps to China 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 171.220.251.99 on?
171.220.251.99 belongs to the 171.220.250.0/23 network block announced by AS139220. This range contains 512 addresses.
Does 171.220.251.99 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.
