Report for 54572

Name

AS-ASN-2 - Nasdaq, 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.

54572 AS-ASN-2 - Nasdaq, Inc., US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS19122         ESTRUXTURE-ON-19122 - eStruxture Data Centers Inc., CA
    AS174           COGENT-174 - Cogent Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
33409 AS54572        ORIGIN  Originate:       1280 /21.68  Transit:          0 /0.00  AS-ASN-2 - Nasdaq, 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       %
49032 AS54572       AS-ASN-2 - Nasdaq, Inc., US                        3      0      0      3      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  198.55.221.0/24      4777 2516 174 54572    
  204.190.16.0/23      4777 2516 1299 19122 54572   
  204.190.18.0/23      4777 2516 174 54572    

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

AS54572   3 More Specifics   3 Total Advertisements   AS-ASN-2 - Nasdaq, Inc., US
    198.55.221.0/24               198.55.192.0/19
    204.190.16.0/23               204.190.0.0/16
    204.190.18.0/23               204.190.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS54572 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS54572\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:       54572
             ASName:         AS-ASN-2
             ASHandle:       AS54572
             RegDate:        2016-12-01
             Updated:        2016-12-01
             Ref:            https://rdap.arin.net/registry/autnum/54572
             
             
             OrgName:        Nasdaq, Inc.
             OrgId:          NOG-5
             Address:        151 West 42nd Street
             City:           New York
             StateProv:      NY
             PostalCode:     10036
             Country:        US
             RegDate:        2012-02-01
             Updated:        2024-12-19
             Ref:            https://rdap.arin.net/registry/entity/NOG-5
             
             
             OrgNOCHandle: NETWO4824-ARIN
             OrgNOCName:   Network Engineering
             OrgNOCPhone:  +1-212-231-5180 
             OrgNOCEmail:  network-request@nasdaq.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO4824-ARIN
             
             OrgAbuseHandle: NETWO4824-ARIN
             OrgAbuseName:   Network Engineering
             OrgAbusePhone:  +1-212-231-5180 
             OrgAbuseEmail:  network-request@nasdaq.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO4824-ARIN
             
             OrgTechHandle: NETWO4824-ARIN
             OrgTechName:   Network Engineering
             OrgTechPhone:  +1-212-231-5180 
             OrgTechEmail:  network-request@nasdaq.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO4824-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.
             #