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CIDR Range

148.51.128.0/18

16.4K IPs /18 United States ARIN
Addresses
16,384
16.4K
Sub-ranges
14+
within this block
PTR Density
8.0%
1.3K of 16.4K 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.

73/100
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 148.51.128.0/18

Geolocation

First and last addresses in 148.51.128.0/18

148.51.128.0/18 runs from 148.51.128.0 to 148.51.191.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 148.51.128.0/17.

Announced prefix
Origin AS
Announcement samples
32,223
Last seen
2026-11-02 13:33:50

Frequently Asked Questions

What is 148.51.128.0/18?

148.51.128.0/18 is a CIDR network block containing 16,384 IPv4 addresses (from 148.51.128.0 to 148.51.191.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 148.51.128.0/18 network?

The 148.51.128.0/18 range is allocated to an unknown organization from United States.

Last updated: 2026-11-02 14:09:06 UTC
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