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 (25y) +6
- Has a reverse-DNS (PTR) record +5
- Isp allocation +5
- Trust score 81 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 24.121.128.0/18
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 24.121.128.0/20 | 4.1K | Optimum | AS19108 | US |
| 24.121.184.0/21 | 2.0K | Optimum | AS19108 | US |
| 24.121.160.0/21 | 2.0K | Optimum | AS19108 | US |
| 24.121.152.0/21 | 2.0K | Optimum | AS19108 | US |
| 24.121.144.0/21 | 2.0K | Optimum | AS19108 | US |
| 24.121.176.0/22 | 1.0K | Optimum | AS19108 | US |
| 24.121.172.0/22 | 1.0K | Optimum | AS19108 | US |
| 24.121.180.0/23 | 512 | Optimum | AS19108 | US |
| 24.121.182.0/23 | 512 | Optimum | AS19108 | US |
| 24.121.168.0/23 | 512 | Optimum | AS19108 | US |
| 24.121.170.0/24 | 256 | Optimum | AS19108 | US |
| 24.121.171.128/25 | 128 | Optimum | AS19108 | US |
| 24.121.171.64/26 | 64 | Optimum | AS19108 | US |
| 24.121.171.0/27 | 32 | Optimum | AS19108 | US |
| 24.121.171.32/28 | 16 | Optimum | AS19108 | US |
| 24.121.171.48/29 | 8 | Optimum | AS19108 | US |
| 24.121.171.56/30 | 4 | Optimum | AS19108 | US |
| 24.121.171.62/31 | 2 | Optimum | AS19108 | US |
| 24.121.171.61/32 | 1 | Optimum | AS19108 | US |
| 24.121.171.60/32 | 1 | Optimum | AS19108 | US |
First and last addresses in 24.121.128.0/18
24.121.128.0/18 runs from 24.121.128.0 to 24.121.191.255.
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 24.121.128.0/17.
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 | — | US |
Frequently Asked Questions
What is 24.121.128.0/18?
24.121.128.0/18 is a CIDR network block containing 16,384 IPv4 addresses (from 24.121.128.0 to 24.121.191.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 24.121.128.0/18 network?
The 24.121.128.0/18 range is allocated to Optimum and announced via AS19108 from United States.
