8.221.136.227
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 (34y) +6
- Not on any threat blocklist +5
- Enterprise allocation +4
- Trust score 80 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network Allocation for 8.221.136.227
- CIDR range
- 8.221.128.0/20
- IP range (int)
- 148,733,952 — 148,738,047
- Prefix length
- /20
- Organization
- Alibaba US Technology Co., Ltd.
- ASN
- AS45102
- ASN name
- Alibaba (US) Technology Co., Ltd.
- Location
- Tokyo, Tokyo, Japan
- Coordinates
- 35.689300, 139.689900
- Accuracy radius
- 20 km
- Postal code
- 102-0082
- Regional Internet Registry
- ARIN
- Allocated
- 1992-12-01
- Data source(s)
- maxmind_asn, ipinfo_lite, maxmind_city, maxmind_country
- Last updated
- 2026-06-09 06:05:20
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 weekly from regional internet registry (RIR) delegation files for ranges that have contained this IP.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | New Allocation | — | SG |
See the full history for 8.221.128.0/17.
Frequently Asked Questions
Who owns 8.221.136.227?
8.221.136.227 is allocated to Alibaba US Technology Co., Ltd. (AS45102), registered in Tokyo, Japan.
Where is 8.221.136.227 located?
The geolocation for 8.221.136.227 maps to Tokyo, Japan 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 8.221.136.227 on?
8.221.136.227 belongs to the 8.221.128.0/20 network block announced by AS45102. This range contains 4,096 addresses.
Does 8.221.136.227 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.
