Report for 1428

Name

DRW-HOLDINGS - DRW Holdings, LLC, 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.

1428 DRW-HOLDINGS - DRW Holdings, LLC, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
58136 AS1428         ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  DRW-HOLDINGS - DRW Holdings, LLC, 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       %
30921 AS1428        DRW-HOLDINGS - DRW Holdings, LLC, US               1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  204.75.143.0/24      4777 2497 3356 1428    

Whois Entry

whois: 402332

IANA has recorded AS1428 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS1428\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:       1428
             ASName:         DRW-HOLDINGS
             ASHandle:       AS1428
             RegDate:        2009-08-03
             Updated:        2012-03-02
             Comment:        Service Desk hours are M-F 7:30am - 5:00pm et.
             Ref:            https://rdap.arin.net/registry/autnum/1428
             
             
             OrgName:        DRW Holdings, LLC
             OrgId:          DRWHO
             Address:        540 W Madison Suite 2500
             City:           Chicago
             StateProv:      IL
             PostalCode:     60661
             Country:        US
             RegDate:        2009-02-17
             Updated:        2025-07-10
             Comment:        Standard hours are 7:30 AM to 6:30 PM ET M-F
             Ref:            https://rdap.arin.net/registry/entity/DRWHO
             
             
             OrgNOCHandle: NETWO4533-ARIN
             OrgNOCName:   Network Admin
             OrgNOCPhone:  +1-312-542-1242 
             OrgNOCEmail:  networkgroup@drwholdings.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO4533-ARIN
             
             OrgTechHandle: NETWO4533-ARIN
             OrgTechName:   Network Admin
             OrgTechPhone:  +1-312-542-1242 
             OrgTechEmail:  networkgroup@drwholdings.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO4533-ARIN
             
             OrgAbuseHandle: NETWO4533-ARIN
             OrgAbuseName:   Network Admin
             OrgAbusePhone:  +1-312-542-1242 
             OrgAbuseEmail:  networkgroup@drwholdings.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO4533-ARIN
             
             OrgTechHandle: CLOUD170-ARIN
             OrgTechName:   Cloud Admin
             OrgTechPhone:  +1-312-542-1000 
             OrgTechEmail:  cloud-rir-x-p-aaron-editor@drwcloud.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/CLOUD170-ARIN
             
             RTechHandle: TMA233-ARIN
             RTechName:   May, Trish 
             RTechPhone:  +1-312-542-3256 
             RTechEmail:  networkgroup@drwholdings.com
             RTechRef:    https://rdap.arin.net/registry/entity/TMA233-ARIN
             
             RAbuseHandle: TMA233-ARIN
             RAbuseName:   May, Trish 
             RAbusePhone:  +1-312-542-3256 
             RAbuseEmail:  networkgroup@drwholdings.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/TMA233-ARIN
             
             RNOCHandle: TMA233-ARIN
             RNOCName:   May, Trish 
             RNOCPhone:  +1-312-542-3256 
             RNOCEmail:  networkgroup@drwholdings.com
             RNOCRef:    https://rdap.arin.net/registry/entity/TMA233-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.
             #