CIDR Range

100.45.96.0/19

8.2K IPs /19 AT&T Enterprises, LLC AS14654 United States ARIN

Addresses

8,192

8.2K

IP Range

100.45.96.0

→ 100.45.127.255

Sub-ranges

within this block

PTR Density

0.0%

1 of 8.2K 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.

81/100

Trusted

How this score is built

Baseline (neutral) 65
Long-established allocation (15y) +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 →

Geolocation

First and last addresses in 100.45.96.0/19

100.45.96.0/19 runs from 100.45.96.0 to 100.45.127.255.

First 16

100.45.96.0 100.45.96.1 100.45.96.2 100.45.96.3 100.45.96.4 100.45.96.5 100.45.96.6 100.45.96.7 100.45.96.8 100.45.96.9 100.45.96.10 100.45.96.11 100.45.96.12 100.45.96.13 100.45.96.14 100.45.96.15

Last 16

100.45.127.240 100.45.127.241 100.45.127.242 100.45.127.243 100.45.127.244 100.45.127.245 100.45.127.246 100.45.127.247 100.45.127.248 100.45.127.249 100.45.127.250 100.45.127.251 100.45.127.252 100.45.127.253 100.45.127.254 100.45.127.255

BGP Routing

Live BGP anomalies →

This block is announced in BGP, observed across our RIPE RIS collectors.

Announced prefix

100.45.96.0/19

Origin AS

AS14654

Announcement samples

11,857

Last seen

2026-10-27 18:44:08

Frequently Asked Questions

What is 100.45.96.0/19?

100.45.96.0/19 is a CIDR network block containing 8,192 IPv4 addresses (from 100.45.96.0 to 100.45.127.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 100.45.96.0/19 network?

The 100.45.96.0/19 range is allocated to AT&T Enterprises, LLC and announced via AS14654 from United States.

Last updated: 2026-10-27 20:09:06 UTC