Report for 13738

Name

MRSTOCK-DOWNERS - Group One Trading 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.

13738 MRSTOCK-DOWNERS - Group One Trading LLC, US

  Adjacency:     2  Upstream:     1  Downstream:     1
  Upstream Adjacent AS list
    AS3257          GTT-BACKBONE GTT, US
  Downstream Adjacent AS list
    AS11640         GROUP-ONE-TRADING - Group One Trading LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
77993 AS13738        TRANSIT Originate:          0 /0.00   Transit:        256 /24.00 MRSTOCK-DOWNERS - Group One Trading LLC, US

Whois Entry

whois: 402332

IANA has recorded AS13738 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS13738\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:       13738
             ASName:         MRSTOCK-DOWNERS
             ASHandle:       AS13738
             RegDate:        1999-08-09
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/13738
             
             
             OrgName:        Group One Trading LLC
             OrgId:          GOL-3
             Address:        425 S Financial Place
             Address:        Suite 3400
             City:           Chicago
             StateProv:      IL
             PostalCode:     60605
             Country:        US
             RegDate:        1999-08-09
             Updated:        2023-10-13
             Ref:            https://rdap.arin.net/registry/entity/GOL-3
             
             
             OrgAbuseHandle: TMD37-ARIN
             OrgAbuseName:   Detrick, Tami Marie
             OrgAbusePhone:  +1-215-701-7910 
             OrgAbuseEmail:  tami.detrick@group1.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/TMD37-ARIN
             
             OrgAbuseHandle: GTEAM-ARIN
             OrgAbuseName:   G1-TeamSupport
             OrgAbusePhone:  +1-215-701-7910 
             OrgAbuseEmail:  arinnotifications@group1.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/GTEAM-ARIN
             
             OrgTechHandle: GTEAM-ARIN
             OrgTechName:   G1-TeamSupport
             OrgTechPhone:  +1-215-701-7910 
             OrgTechEmail:  arinnotifications@group1.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/GTEAM-ARIN
             
             OrgNOCHandle: GTEAM-ARIN
             OrgNOCName:   G1-TeamSupport
             OrgNOCPhone:  +1-215-701-7910 
             OrgNOCEmail:  arinnotifications@group1.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/GTEAM-ARIN
             
             OrgTechHandle: TMD37-ARIN
             OrgTechName:   Detrick, Tami Marie
             OrgTechPhone:  +1-215-701-7910 
             OrgTechEmail:  tami.detrick@group1.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/TMD37-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.
             #