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CIDR Range

209.54.36.0/23

512 IPs /23 Unwired Broadband, LLC AS33548 United States ARIN
Addresses
512
512
IP Range
209.54.36.0
→ 209.54.37.255
Sub-ranges
50+
within this block
PTR Density
19.1%
98 of 512 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 →

Ranges inside 209.54.36.0/23

CIDRIPsOrganizationASNCountry
209.54.36.0/25 128 Unwired Broadband, LLC AS33548 US
209.54.36.128/26 64 Unwired Broadband, LLC AS33548 US
209.54.36.224/27 32 Unwired Broadband, LLC AS33548 US
209.54.37.0/30 4 Unwired Broadband, LLC AS33548 US
209.54.36.216/30 4 Unwired Broadband, LLC AS33548 US
209.54.37.76/30 4 Unwired Broadband, LLC AS33548 US
209.54.37.8/30 4 Unwired Broadband, LLC AS33548 US
209.54.37.144/30 4 Unwired Broadband, LLC AS33548 US
209.54.37.160/30 4 Unwired Broadband, LLC AS33548 US
209.54.36.196/30 4 Unwired Broadband, LLC AS33548 US
209.54.37.44/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.172/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.224/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.84/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.60/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.116/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.208/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.212/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.56/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.40/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.120/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.124/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.48/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.168/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.220/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.216/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.64/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.68/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.100/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.96/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.188/31 2 Unwired Broadband, LLC AS33548 US
209.54.37.92/31 2 Unwired Broadband, LLC AS33548 US

First and last addresses in 209.54.36.0/23

209.54.36.0/23 runs from 209.54.36.0 to 209.54.37.255.

First 16
209.54.36.0 209.54.36.1 209.54.36.2 209.54.36.3 209.54.36.4 209.54.36.5 209.54.36.6 209.54.36.7 209.54.36.8 209.54.36.9 209.54.36.10 209.54.36.11 209.54.36.12 209.54.36.13 209.54.36.14 209.54.36.15
Last 16
209.54.37.240 209.54.37.241 209.54.37.242 209.54.37.243 209.54.37.244 209.54.37.245 209.54.37.246 209.54.37.247 209.54.37.248 209.54.37.249 209.54.37.250 209.54.37.251 209.54.37.252 209.54.37.253 209.54.37.254 209.54.37.255

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 209.54.32.0/20.

Announced prefix
209.54.32.0/20
Origin AS
AS33548
Announcement samples
18,762
Last seen
2026-11-14 22:21:01

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 — US

Frequently Asked Questions

What is 209.54.36.0/23?

209.54.36.0/23 is a CIDR network block containing 512 IPv4 addresses (from 209.54.36.0 to 209.54.37.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 209.54.36.0/23 network?

The 209.54.36.0/23 range is allocated to Unwired Broadband, LLC and announced via AS33548 from United States.

Last updated: 2026-11-14 23:54:04 UTC
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