Report for 55102

Name

NRG-NS-2 - NRG Energy, Inc., US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS6447) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

55102 NRG-NS-2, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS25956         ALPHE, US
    AS33132         CROWNCASTLE-AS33132, US
    AS6461          ZAYO-6461, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
17552 AS55102        ORIGIN  Originate:       4096 /20.00  Transit:          0 /0.00  NRG-NS-2, US

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
49091 AS55102       NRG-NS-2, US                                       7      0      0      7      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  158.81.128.0/24      2497 6461 55102        
  158.81.136.0/21      57866 1299 46887 33132 55102   
  158.81.150.0/24      57866 1299 46887 33132 55102 55102 55102 55102 55102 55102 55102   
  158.81.154.0/24      3257 6461 55102        
  158.81.192.0/23      2497 6461 55102        
  158.81.199.0/24      2497 6461 55102        
  158.81.200.0/23      2497 6461 55102        

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS55102   5 More Specifics   5 Total Advertisements   NRG-NS-2, US
    158.81.128.0/24               158.81.128.0/18
    158.81.150.0/24               158.81.128.0/18
    158.81.154.0/24               158.81.128.0/18
    158.81.192.0/23               158.81.192.0/18
    158.81.200.0/23               158.81.192.0/18

Whois Entry

whois: 402603

IANA has recorded AS55102 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS55102\n             
             #
             # 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
             
             
             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
             
             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
             
             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.
             #