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Organization

NRG Energy, Inc.

IPv4 addresses
6,400
CIDR ranges
13
Category
unknown
BGP prefixes announced
14

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.

65/100
Moderate
How this score is built

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

Countries served by NRG Energy, Inc.

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by NRG Energy, Inc.

ASNNameIPsPrefixesCountry
AS55102 NRG Energy, Inc. 4.1K 7 US
AS20404 NRG Energy, Inc. 2.3K 6 US

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
158.81.136.0/21 2.0K
0.0%
AS55102 US
158.81.208.0/22 1.0K
0.2%
AS20404 US New Jersey Matawan
158.81.192.0/23 512
0.4%
AS55102 US Texas Houston
158.81.200.0/23 512
0.0%
AS55102 US
158.81.128.0/24 256
0.0%
AS55102 US
158.81.150.0/24 256
2.3%
AS55102 US
158.81.153.0/24 256
0.0%
AS20404 US
158.81.154.0/24 256
0.0%
AS55102 US
158.81.160.0/24 256
0.0%
AS20404 US
158.81.168.0/24 256
0.0%
AS20404 US
158.81.199.0/24 256
0.0%
AS55102 US
158.81.251.0/24 256
0.0%
AS20404 US
158.81.252.0/24 256
0.0%
AS20404 US

Frequently Asked Questions

How many IP addresses does NRG Energy, Inc. own?

NRG Energy, Inc. controls 6.4K IPv4 addresses distributed across 13 CIDR ranges. The organization is registered in United States.

What ASNs does NRG Energy, Inc. operate?

NRG Energy, Inc. operates 2 Autonomous Systems. Each ASN represents an independently routed network that NRG Energy, Inc. manages for internet traffic delivery.

What type of organization is NRG Energy, Inc.?

NRG Energy, Inc. is categorized as unknown. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-07-29 13:25:31 UTC
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