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CIDR Range

136.44.0.0/15

Addresses
131,072
131.1K
Sub-ranges
35+
within this block
PTR Density
99.0%
129.8K of 131.1K 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.

78/100
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 136.44.0.0/15

CIDRIPsOrganizationASNCountry
136.45.128.0/17 32.8K Google Fiber Inc. AS16591 US
136.44.128.0/17 32.8K Google Fiber Inc. AS16591 US
136.45.0.0/19 8.2K Google Fiber Inc. AS16591 US
136.45.32.0/19 8.2K Google Fiber Inc. AS16591 US
136.45.64.0/19 8.2K Google Fiber Inc. AS16591 US
136.44.32.0/19 8.2K Google Fiber Inc. AS16591 US
136.45.96.0/19 8.2K Google Fiber Inc. AS16591 US
136.44.112.0/20 4.1K Google Fiber Inc. AS16591 US
136.44.96.0/20 4.1K Google Fiber Inc. AS16591 US
136.44.80.0/20 4.1K Google Fiber Inc. AS16591 US
136.44.0.0/20 4.1K Google Fiber Inc. AS16591 US
136.44.16.0/20 4.1K Google Fiber Inc. AS16591 US
136.44.78.0/23 512 Google Fiber Inc. AS16591 US
136.44.70.0/24 256 Google Fiber Inc. AS16591 US
136.44.77.0/24 256 Google Fiber Inc. AS16591 US
136.44.76.0/24 256 Google Fiber Inc. AS16591 US
136.44.75.0/24 256 Google Fiber Inc. AS16591 US
136.44.74.0/24 256 Google Fiber Inc. AS16591 US
136.44.73.0/24 256 Google Fiber Inc. AS16591 US
136.44.72.0/24 256 Google Fiber Inc. AS16591 US
136.44.71.0/24 256 Google Fiber Inc. AS16591 US
136.44.65.0/24 256 Google Fiber Inc. AS16591 US
136.44.69.0/24 256 Google Fiber Inc. AS16591 US
136.44.68.0/24 256 Google Fiber Inc. AS16591 US
136.44.67.0/24 256 Google Fiber Inc. AS16591 US
136.44.66.0/24 256 Google Fiber Inc. AS16591 US
136.44.64.128/25 128 Google Fiber Inc. AS16591 US
136.44.64.0/26 64 Google Fiber Inc. AS16591 US
136.44.64.96/27 32 Google Fiber Inc. AS16591 US
136.44.64.80/28 16 Google Fiber Inc. AS16591 US
136.44.64.72/29 8 Google Fiber Inc. AS16591 US
136.44.64.68/30 4 Google Fiber Inc. AS16591 US

First and last addresses in 136.44.0.0/15

136.44.0.0/15 runs from 136.44.0.0 to 136.45.255.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 136.32.0.0/11.

Announced prefix
Origin AS
Announcement samples
17,583
Last seen
2026-11-13 15:10:39

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 136.44.0.0/15?

136.44.0.0/15 is a CIDR network block containing 131,072 IPv4 addresses (from 136.44.0.0 to 136.45.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 136.44.0.0/15 network?

The 136.44.0.0/15 range is allocated to Google Fiber Inc. and announced via AS16591 from United States.

Last updated: 2026-11-13 15:24:05 UTC
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