CIDR Range

207.89.40.0/21

2.0K IPs /21 OneCleveland AS19009 United States ARIN

Addresses

2,048

2.0K

IP Range

207.89.40.0

→ 207.89.47.255

Sub-ranges

within this block

PTR Density

2.6%

54 of 2.0K 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.

77/100

Moderate

How this score is built

Baseline (neutral) 65
Has a reverse-DNS (PTR) record +5
Enterprise allocation +4
Established allocation (10y) +3
Trust score 77 / 100

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

First and last addresses in 207.89.40.0/21

207.89.40.0/21 runs from 207.89.40.0 to 207.89.47.255.

First 16

207.89.40.0 207.89.40.1 207.89.40.2 207.89.40.3 207.89.40.4 207.89.40.5 207.89.40.6 207.89.40.7 207.89.40.8 207.89.40.9 207.89.40.10 207.89.40.11 207.89.40.12 207.89.40.13 207.89.40.14 207.89.40.15

Last 16

207.89.47.240 207.89.47.241 207.89.47.242 207.89.47.243 207.89.47.244 207.89.47.245 207.89.47.246 207.89.47.247 207.89.47.248 207.89.47.249 207.89.47.250 207.89.47.251 207.89.47.252 207.89.47.253 207.89.47.254 207.89.47.255

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 207.89.32.0/20.

Announced prefix

207.89.32.0/20

Origin AS

AS19009

Announcement samples

15,783

Last seen

2026-10-30 06:32:41

Frequently Asked Questions

What is 207.89.40.0/21?

207.89.40.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 207.89.40.0 to 207.89.47.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 207.89.40.0/21 network?

The 207.89.40.0/21 range is allocated to OneCleveland and announced via AS19009 from United States.

Last updated: 2026-10-30 06:39:05 UTC