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
- Has a reverse-DNS (PTR) record +5
- Trust score 76 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 52.91.0.0/16
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 52.91.0.0/17 | 32.8K | Amazon.com, Inc. | AS14618 | US |
| 52.91.128.0/18 | 16.4K | Amazon.com, Inc. | AS14618 | US |
| 52.91.192.0/19 | 8.2K | Amazon.com, Inc. | AS14618 | US |
| 52.91.224.0/20 | 4.1K | Amazon.com, Inc. | AS14618 | US |
| 52.91.240.0/20 | 4.1K | Amazon.com, Inc. | AS14618 | US |
First and last addresses in 52.91.0.0/16
52.91.0.0/16 runs from 52.91.0.0 to 52.91.255.255.
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 52.90.0.0/15.
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 52.91.0.0/16?
52.91.0.0/16 is a CIDR network block containing 65,536 IPv4 addresses (from 52.91.0.0 to 52.91.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 52.91.0.0/16 network?
The 52.91.0.0/16 range is allocated to Amazon.com, Inc. and announced via AS14618 from United States.
