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CIDR Range

197.83.176.0/21

Addresses
2,048
2.0K
Sub-ranges
3+
within this block
PTR Density
98.8%
2.0K 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

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

Ranges inside 197.83.176.0/21

First and last addresses in 197.83.176.0/21

197.83.176.0/21 runs from 197.83.176.0 to 197.83.183.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 197.80.0.0/13.

Announced prefix
Origin AS
Announcement samples
114,708
Last seen
2026-10-27 13:13:10

Frequently Asked Questions

What is 197.83.176.0/21?

197.83.176.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 197.83.176.0 to 197.83.183.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 197.83.176.0/21 network?

The 197.83.176.0/21 range is allocated to Dimension Data and announced via AS20011 from South Africa.

Last updated: 2026-10-27 13:24:05 UTC
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