Autonomous system
AS55102 NRG-NS-2
Unclassified ARIN
Summary
NRG Energy
energy corporate business us
NRG-NS-2 is operated by NRG Energy, Inc.
What it's used for
- The address space carries internal corporate infrastructure, as indicated by netnames
RRI-NETandRRIHOUSTONregistered to NRG Energy, Inc. - The AS announces 4096 IPv4 addresses across 7 prefixes with only 3 observed neighbours, a ratio characteristic of an internal corporate estate rather than a transit or access network.
- Traffic from this AS consists of office workers, internal systems, and business endpoints for NRG Energy, a North American energy and home services company headquartered in Houston, Texas.
Notable
- All registrants in the RDAP data agree with the announcer, consistently listing NRG Energy, Inc. for prefixes including
158.81.136.0/21and158.81.192.0/23. - The address inventory is finely subdivided into multiple /24 and /23 blocks within the 158.81.128.0/18 range, reflecting site-by-site segmentation typical of a large corporate network.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-24, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 8 prefixes · 4.61K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 8 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS55102- Registry name
- NRG-NS-2
- Registrant
- NRG Energy, Inc.
- Abuse contact
- Corp_NetOps_DL@nrg.com
- Registered
- 2013-03-06
- Last changed
- 2013-03-06
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 9 with no ROA
- ROAs
- 0 authorising AS55102
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 5 naming AS55102
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,779 prefixes, as published 2026-10-24. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere