Report for 33633

Name

USG-CORPORATION - USG Corporation, 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 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.

33633 USG-CORPORATION - USG Corporation, Inc., US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS23352         SERVERCENTRAL - DEFT.COM, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
22167 AS33633        ORIGIN  Originate:       2560 /20.68  Transit:          0 /0.00  USG-CORPORATION - USG Corporation, Inc., 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       %
16501 AS33633       USG-CORPORATION - USG Corporation, Inc., US        5      2      0      3      2  40.00%


  Prefix               AS Path                              Aggregation Suggestion
  8.26.176.0/24        4777 2516 3356 33633   
  64.43.232.0/22       4777 2516 3257 23352 33633   
  64.43.232.0/23       4777 2516 3257 23352 33633 - Withdrawn - matching aggregate 64.43.232.0/22 4777 2516 3257 23352 33633
  64.43.234.0/23       4777 2516 3257 23352 33633 - Withdrawn - matching aggregate 64.43.232.0/22 4777 2516 3257 23352 33633
  66.225.192.0/24      4608 7575 2914 23352 33633   

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

AS33633   5 More Specifics   5 Total Advertisements   USG-CORPORATION - USG Corporation, Inc., US
    8.26.176.0/24                 8.16.0.0/12
    64.43.232.0/22                64.43.224.0/19
    64.43.232.0/23                64.43.224.0/19
    64.43.234.0/23                64.43.224.0/19
    66.225.192.0/24               66.225.192.0/18

Whois Entry

whois: 402603

IANA has recorded AS33633 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS33633\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:       33633
             ASName:         USG-CORPORATION
             ASHandle:       AS33633
             RegDate:        2005-02-09
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/33633
             
             
             OrgName:        USG Corporation, Inc.
             OrgId:          USGCOR
             Address:        125 South Franklin
             City:           Chicago
             StateProv:      IL
             PostalCode:     60606
             Country:        US
             RegDate:        1999-01-12
             Updated:        2011-09-24
             Ref:            https://rdap.arin.net/registry/entity/USGCOR
             
             
             OrgTechHandle: BJE5-ARIN
             OrgTechName:   Jensen, Britt 
             OrgTechPhone:  +1-312-606-5554 
             OrgTechEmail:  BJensen@usg.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/BJE5-ARIN
             
             OrgAbuseHandle: BJE5-ARIN
             OrgAbuseName:   Jensen, Britt 
             OrgAbusePhone:  +1-312-606-5554 
             OrgAbuseEmail:  BJensen@usg.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/BJE5-ARIN
             
             RTechHandle: BJE5-ARIN
             RTechName:   Jensen, Britt 
             RTechPhone:  +1-312-606-5554 
             RTechEmail:  BJensen@usg.com
             RTechRef:    https://rdap.arin.net/registry/entity/BJE5-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.
             #