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CIDR Range

87.80.48.0/21

Addresses
2,048
2.0K
Sub-ranges
0+
within this block
PTR Density
0.0%
0 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.

75/100
Moderate
How this score is built

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

Geolocation

First and last addresses in 87.80.48.0/21

87.80.48.0/21 runs from 87.80.48.0 to 87.80.55.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 87.80.0.0/16.

Announced prefix
Origin AS
Announcement samples
27,787
Last seen
2026-11-13 09:06:15

Frequently Asked Questions

What is 87.80.48.0/21?

87.80.48.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 87.80.48.0 to 87.80.55.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 87.80.48.0/21 network?

The 87.80.48.0/21 range is allocated to DongFong Technology Co. Ltd. and announced via AS18046 from Taiwan.

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