Addresses
16,384
16.4K
Sub-ranges
0+
within this block
PTR Density
0.0%
0 of 16.4K 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.
71/100
Moderate
How this score is built
- Baseline (neutral) 65
- Long-established allocation (20y) +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Geolocation
First 256 of 16,384 IP addresses in 121.76.128.0/18
121.76.128.0
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121.76.128.255
+ 16.1K more (range too large to list inline)
BGP Routing
Live BGP anomalies →This block is announced in BGP, observed across our RIPE RIS collectors.
Announced prefix
Origin AS
Announcement samples
435
Last seen
2026-07-22 23:47:32
Frequently Asked Questions
What is 121.76.128.0/18?
121.76.128.0/18 is a CIDR network block containing 16,384 IPv4 addresses (from 121.76.128.0 to 121.76.191.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 121.76.128.0/18 network?
The 121.76.128.0/18 range is allocated to Oriental Cable Network Co., Ltd. and announced via AS9812 from China.
Last updated: 2026-07-23 03:40:32 UTC
