Addresses
262,144
262.1K
Sub-ranges
42+
within this block
PTR Density
49.3%
129.3K of 262.1K IPs have PTR
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.
70/100
Moderate
How this score is built
- Baseline (neutral) 65
- Has a reverse-DNS (PTR) record +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 121.28.0.0/14
Geolocation
First and last addresses in 121.28.0.0/14
121.28.0.0/14 runs from 121.28.0.0 to 121.31.255.255.
First 16
121.28.0.0
121.28.0.1
121.28.0.2
121.28.0.3
121.28.0.4
121.28.0.5
121.28.0.6
121.28.0.7
121.28.0.8
121.28.0.9
121.28.0.10
121.28.0.11
121.28.0.12
121.28.0.13
121.28.0.14
121.28.0.15
Last 16
RIR Ownership History
Atom feed ⇲Allocation changes captured from regional internet registry (RIR) delegation files, re-imported every six hours.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | New Allocation | — | CN |
Frequently Asked Questions
What is 121.28.0.0/14?
121.28.0.0/14 is a CIDR network block containing 262,144 IPv4 addresses (from 121.28.0.0 to 121.31.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 121.28.0.0/14 network?
The 121.28.0.0/14 range is allocated to an unknown organization from China.
Last updated: 2026-10-28 01:39:05 UTC
