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CIDR Range

12.50.0.0/15

131.1K IPs /15 United States ARIN
Addresses
131,072
131.1K
Sub-ranges
50+
within this block
PTR Density
31.2%
40.9K 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.

76/100
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 12.50.0.0/15

CIDRIPsOrganizationASNCountry
12.50.128.0/17 32.8K AT&T Enterprises, LLC AS7018 US
12.50.128.0/17 32.8K AT&T Enterprises, LLC AS7018 US
12.51.128.0/17 32.8K AT&T Enterprises, LLC AS7018 US
12.50.64.0/18 16.4K AT&T Enterprises, LLC AS7018 US
12.51.64.0/18 16.4K AT&T Enterprises, LLC AS7018 US
12.51.64.0/18 16.4K AT&T Enterprises, LLC AS7018 US
12.51.192.0/18 16.4K AT&T Enterprises, LLC AS7018 US
12.50.0.0/19 8.2K AT&T Enterprises, LLC AS7018 US
12.50.96.0/19 8.2K AT&T Enterprises, LLC AS7018 US
12.50.160.0/19 8.2K — — US
12.51.32.0/19 8.2K AT&T Enterprises, LLC AS7018 US
12.51.32.0/19 8.2K AT&T Enterprises, LLC AS7018 US
12.51.160.0/19 8.2K AT&T Enterprises, LLC AS7018 US
12.50.48.0/20 4.1K AT&T Enterprises, LLC AS7018 US
12.50.48.0/20 4.1K AT&T Enterprises, LLC AS7018 US
12.50.80.0/20 4.1K — — US
12.51.0.0/20 4.1K AT&T Enterprises, LLC AS7018 US
12.51.0.0/20 4.1K AT&T Enterprises, LLC AS7018 US
12.51.48.0/20 4.1K — — US
12.51.144.0/20 4.1K AT&T Enterprises, LLC AS7018 US
12.51.192.0/20 4.1K — — US
12.50.0.0/21 2.0K AT&T Enterprises, LLC AS7018 US
12.50.24.0/21 2.0K AT&T Enterprises, LLC AS7018 US
12.50.40.0/21 2.0K AT&T Enterprises, LLC AS7018 US
12.50.40.0/21 2.0K AT&T Enterprises, LLC AS7018 US
12.50.56.0/21 2.0K — — US
12.50.64.0/21 2.0K — — US
12.50.72.0/21 2.0K AT&T Enterprises, LLC AS7018 US
12.50.80.0/21 2.0K AT&T Enterprises, LLC AS7018 US
12.50.96.0/21 2.0K — — US
12.50.112.0/21 2.0K — — US
12.51.16.0/21 2.0K AT&T Enterprises, LLC AS7018 US

First and last addresses in 12.50.0.0/15

12.50.0.0/15 runs from 12.50.0.0 to 12.51.255.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 12.0.0.0/8.

Announced prefix
Origin AS
Announcement samples
12,567
Last seen
2026-11-13 20:44:33

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 12.50.0.0/15?

12.50.0.0/15 is a CIDR network block containing 131,072 IPv4 addresses (from 12.50.0.0 to 12.51.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 12.50.0.0/15 network?

The 12.50.0.0/15 range is allocated to an unknown organization from United States.

Last updated: 2026-11-13 21:24:05 UTC
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