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CIDR Range

187.251.21.64/26

Addresses
64
64
Sub-ranges
3+
within this block
PTR Density
0.0%
0 of 64 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.

68/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Ranges inside 187.251.21.64/26

All 64 IP addresses in 187.251.21.64/26

Not announced as an exact prefix — covered by the announced supernet 187.251.20.0/22.

Announced prefix
Origin AS
Announcement samples
25,425
Last seen
2026-09-02 08:00:28

Frequently Asked Questions

What is 187.251.21.64/26?

187.251.21.64/26 is a CIDR network block containing 64 IPv4 addresses (from 187.251.21.64 to 187.251.21.127). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 187.251.21.64/26 network?

The 187.251.21.64/26 range is allocated to Transtelco Inc and announced via AS32098 from Costa Rica.

How many IP addresses are in 187.251.21.64/26?

187.251.21.64/26 contains exactly 64 usable IPv4 addresses. A /26 prefix length means 64 addresses are covered by this single routing entry.

Last updated: 2026-09-02 09:09:06 UTC
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