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CIDR Range

77.143.0.0/21

Addresses
2,048
2.0K
Sub-ranges
4+
within this block
PTR Density
99.9%
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.

81/100
Trusted
How this score is built

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

Ranges inside 77.143.0.0/21

First and last addresses in 77.143.0.0/21

77.143.0.0/21 runs from 77.143.0.0 to 77.143.7.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 77.143.0.0/16.

Announced prefix
Origin AS
Announcement samples
264,864
Last seen
2026-11-13 09:09:23

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 — FR

Frequently Asked Questions

What is 77.143.0.0/21?

77.143.0.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 77.143.0.0 to 77.143.7.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 77.143.0.0/21 network?

The 77.143.0.0/21 range is allocated to Societe Reunionnaise Du Radiotelephone Scs and announced via AS49902 from Réunion.

Last updated: 2026-11-13 09:24:05 UTC
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