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 (35y) +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 153.9.0.0/19
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 153.9.0.0/20 | 4.1K | College of Charleston | AS13548 | US |
| 153.9.16.0/20 | 4.1K | College of Charleston | AS13548 | US |
Geolocation
First 256 of 8,192 IP addresses in 153.9.0.0/19
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 153.9.0.0/16.
RIR Ownership History
Atom feed ⇲Allocation changes captured weekly from regional internet registry (RIR) delegation files.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | RIR Transfer | apnic | arin |
Frequently Asked Questions
What is 153.9.0.0/19?
153.9.0.0/19 is a CIDR network block containing 8,192 IPv4 addresses (from 153.9.0.0 to 153.9.31.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 153.9.0.0/19 network?
The 153.9.0.0/19 range is allocated to College of Charleston and announced via AS13548 from United States.