ASN AS55102 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS55102?

AS55102 is listed under NRG Energy, Inc..

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS55102 NRG Energy, Inc. | IPGeolocation.io

ASN Lookup Tool

NRG Energy, Inc. nrg.com

US 7 Routes

AS Data

AS55102

AS55102 – NRG Energy, Inc.

AS Number	55102
AS Name	NRG-NS-2
Organization	NRG Energy, Inc.(ne-29)
Country	US
Website	nrg.com
Number of IPv4 Routes	7
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2013-03-06

ASN Intelligence API for production workflows

Use ASN data for AS55102 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
158.81.199.0/24	AS55102	NRG Energy, Inc.	NRG Energy, Inc.	256
158.81.128.0/24	AS55102	NRG Energy, Inc.	NRG Energy, Inc.	256
158.81.150.0/24	AS55102	NRG Energy, Inc.	NRG Energy, Inc.	256
158.81.200.0/23	AS55102	NRG Energy, Inc.	NRG Energy, Inc.	512
158.81.192.0/23	AS55102	NRG Energy, Inc.	NRG Energy, Inc.	512
158.81.154.0/24	AS55102	NRG Energy, Inc.	NRG Energy, Inc.	256
158.81.136.0/21	AS55102	NRG Energy, Inc.	NRG Energy, Inc.	2048

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       55102
ASName:         NRG-NS-2
ASHandle:       AS55102
RegDate:        2013-03-06
Updated:        2013-03-06    
Ref:            https://rdap.arin.net/registry/autnum/55102


OrgName:        NRG Energy, Inc.
OrgId:          NE-29
Address:        910 Louisiana Street
City:           Houston
StateProv:      TX
PostalCode:     77002
Country:        US
RegDate:        2013-02-22
Updated:        2022-04-19
Ref:            https://rdap.arin.net/registry/entity/NE-29


OrgTechHandle: NETWO3117-ARIN
OrgTechName:   Network Services
OrgTechPhone:  +1-832-357-3000 
OrgTechEmail:  Corp_NetOps_DL@nrg.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO3117-ARIN

OrgNOCHandle: NETWO3117-ARIN
OrgNOCName:   Network Services
OrgNOCPhone:  +1-832-357-3000 
OrgNOCEmail:  Corp_NetOps_DL@nrg.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO3117-ARIN

OrgAbuseHandle: NETWO3117-ARIN
OrgAbuseName:   Network Services
OrgAbusePhone:  +1-832-357-3000 
OrgAbuseEmail:  Corp_NetOps_DL@nrg.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO3117-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS33132	Crown Castle Fiber LLC	US
AS6461	Zayo Bandwidth	US
AS25956	Logix	US

Upstreams

AS Number	Description	Country
AS33132	Crown Castle Fiber LLC	US
AS6461	Zayo Bandwidth	US
AS25956	Logix	US