Addresses
32,768
32.8K
Sub-ranges
14+
within this block
PTR Density
0.0%
0 of 32.8K 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 (15y) +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 107.91.0.0/17
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 107.91.64.0/18 | 16.4K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.0.0/18 | 16.4K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.96.0/19 | 8.2K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.32.0/19 | 8.2K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.64.0/19 | 8.2K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.96.0/20 | 4.1K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.80.0/20 | 4.1K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.0.0/20 | 4.1K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.64.0/20 | 4.1K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.16.0/20 | 4.1K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.112.0/20 | 4.1K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.72.0/21 | 2.0K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.68.0/22 | 1.0K | AT&T Enterprises, LLC | AS20057 | US |
| 107.91.64.0/22 | 1.0K | AT&T Enterprises, LLC | AS20057 | US |
Geolocation
First 256 of 32,768 IP addresses in 107.91.0.0/17
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+ 32.5K 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
4,119
Last seen
2026-07-23 14:37:47
Frequently Asked Questions
What is 107.91.0.0/17?
107.91.0.0/17 is a CIDR network block containing 32,768 IPv4 addresses (from 107.91.0.0 to 107.91.127.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 107.91.0.0/17 network?
The 107.91.0.0/17 range is allocated to AT&T Enterprises, LLC and announced via AS20057 from United States.
Last updated: 2026-07-23 15:10:36 UTC
