Report for 3753

Name

NSCEE - National Supercomputing Center for Energy and the Environment, 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 AS4637) 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.

3753 NSCEE - National Supercomputing Center for Energy and the Environment

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS1239    SPRINTLINK - Sprint

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
13109 AS3753   ORIGIN  Originate:       1792 /21.19  Transit:          0 /0.00  NSCEE - National Supercomputing Center for Energy and the Environment

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       %
 2860 AS3753  NSCEE - National Supercomputing Center f      7      4      1      4      3  42.86%


  Prefix               AS Path                              Aggregation Suggestion
  199.1.112.0/22       4637 3491 3561 1239 3753 + Announce - aggregate of 199.1.112.0/23 (4637 3491 3561 1239 3753) and 199.1.114.0/23 (4637 3491 3561 1239 3753)
  199.1.112.0/24       4637 3491 3561 1239 3753 - Withdrawn - aggregated with 199.1.113.0/24 (4637 3491 3561 1239 3753)
  199.1.113.0/24       4637 3491 3561 1239 3753 - Withdrawn - aggregated with 199.1.112.0/24 (4637 3491 3561 1239 3753)
  199.1.114.0/24       4637 3491 3561 1239 3753 - Withdrawn - aggregated with 199.1.115.0/24 (4637 3491 3561 1239 3753)
  199.1.115.0/24       4637 3491 3561 1239 3753 - Withdrawn - aggregated with 199.1.114.0/24 (4637 3491 3561 1239 3753)
  199.1.116.0/24       4637 3491 3561 1239 3753   
  199.1.118.0/24       4637 3491 3561 1239 3753   
  199.1.125.0/24       4637 3491 3561 1239 3753   

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

AS3753   7 More Specifics   7 Total Advertisements   NSCEE - National Supercomputing Center for Energy and the Environment
    199.1.112.0/24                199.0.0.0/14
    199.1.113.0/24                199.0.0.0/14
    199.1.114.0/24                199.0.0.0/14
    199.1.115.0/24                199.0.0.0/14
    199.1.116.0/24                199.0.0.0/14
    199.1.118.0/24                199.0.0.0/14
    199.1.125.0/24                199.0.0.0/14

Whois Entry

whois: 402603

IANA has recorded AS3753 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS3753\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:       3753
             ASName:         NSCEE
             ASHandle:       AS3753
             RegDate:        1994-08-08
             Updated:        1994-08-08
             Ref:            https://rdap.arin.net/registry/autnum/3753
             
             
             OrgName:        National Supercomputing Center for Energy and the Environment
             OrgId:          NSCEE
             Address:        4505 Maryland Parkway
             Address:        Box 454028
             City:           Las Vegas
             StateProv:      NV
             PostalCode:     89154-4028
             Country:        US
             RegDate:        1994-08-08
             Updated:        2012-10-10
             Ref:            https://rdap.arin.net/registry/entity/NSCEE
             
             
             OrgTechHandle: BN25-ARIN
             OrgTechName:   Nassersharif, Bahram 
             OrgTechPhone:  +1-702-895-1493 
             OrgTechEmail:  pinsom@nye.nscee.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/BN25-ARIN
             
             OrgAbuseHandle: BN25-ARIN
             OrgAbuseName:   Nassersharif, Bahram 
             OrgAbusePhone:  +1-702-895-1493 
             OrgAbuseEmail:  pinsom@nye.nscee.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/BN25-ARIN
             
             RTechHandle: BN25-ARIN
             RTechName:   Nassersharif, Bahram 
             RTechPhone:  +1-702-895-1493 
             RTechEmail:  pinsom@nye.nscee.edu
             RTechRef:    https://rdap.arin.net/registry/entity/BN25-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.
             #