Report for 393456

Name

X - United States Steel Corporation, 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 AS2.0) 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.

393456 X - United States Steel Corporation, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS33154         DQECOM - DQE Communications LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
43814 AS393456       ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  X - United States Steel Corporation, 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       %
73553 AS393456      X - United States Steel Corporation, US            4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  170.4.0.0/24         4777 2516 3356 33154 393456   
  170.191.0.0/24       4777 2497 3356 393456   
  170.191.2.0/24       4777 2497 3356 393456   
  199.248.185.0/24     4777 2497 3356 393456   

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

AS393456   3 More Specifics   4 Total Advertisements   X - United States Steel Corporation, US
    170.4.0.0/24                  170.4.0.0/19
    170.191.0.0/24                170.191.0.0/16
    170.191.2.0/24                170.191.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS393456 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS393456\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:       393456
             ASName:         X
             ASHandle:       AS393456
             RegDate:        2014-05-27
             Updated:        2014-05-27
             Comment:        United States Steel Corp
             Comment:        www.ussteel.com
             Comment:        24/7/365 NOC Hours
             Comment:        +1-800-552-2730
             Ref:            https://rdap.arin.net/registry/autnum/393456
             
             
             OrgName:        United States Steel Corporation
             OrgId:          USSC-9
             Address:        1509 Muriel Street
             City:           Pittsburgh
             StateProv:      PA
             PostalCode:     15203
             Country:        US
             RegDate:        2011-10-04
             Updated:        2023-06-13
             Comment:        24/7/365 Help Desk:
             Comment:        
             Comment:        1-800-552-2730
             Ref:            https://rdap.arin.net/registry/entity/USSC-9
             
             
             OrgAbuseHandle: NOC12282-ARIN
             OrgAbuseName:   Network Operations Center
             OrgAbusePhone:  +1-800-552-2730 
             OrgAbuseEmail:  dp@uss.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NOC12282-ARIN
             
             OrgTechHandle: USSAD-ARIN
             OrgTechName:   USS Administration
             OrgTechPhone:  +1-412-433-5790 
             OrgTechEmail:  usx_domain_admin@uss.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/USSAD-ARIN
             
             OrgNOCHandle: NOC12282-ARIN
             OrgNOCName:   Network Operations Center
             OrgNOCPhone:  +1-800-552-2730 
             OrgNOCEmail:  dp@uss.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC12282-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.
             #