Report for 23291

Name

FLAGSTAR-BANK-US - Flagstar Bank, 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.

23291 FLAGSTAR-BANK-US - Flagstar Bank, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS13335         CLOUDFLARENET - Cloudflare, Inc., US
    AS701           UUNET - Verizon Business, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
35592 AS23291        ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  FLAGSTAR-BANK-US - Flagstar Bank, 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       %
36920 AS23291       FLAGSTAR-BANK-US - Flagstar Bank, US               4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  12.159.49.0/24       4777 2516 701 23291 23291 23291 23291   
  12.162.250.0/24      4777 2516 701 23291    
  63.78.207.0/24       4777 13335 23291       
  63.85.49.0/24        4777 13335 23291       

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

AS23291   4 More Specifics   4 Total Advertisements   FLAGSTAR-BANK-US - Flagstar Bank, US
    12.159.49.0/24                12.0.0.0/8
    12.162.250.0/24               12.0.0.0/8
    63.78.207.0/24                63.64.0.0/10
    63.85.49.0/24                 63.64.0.0/10

Whois Entry

whois: 402332

IANA has recorded AS23291 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS23291\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:       23291
             ASName:         FLAGSTAR-BANK-US
             ASHandle:       AS23291
             RegDate:        2002-02-21
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/23291
             
             
             OrgName:        Flagstar Bank
             OrgId:          FLAGST-6
             Address:        5151 Corporate Drive
             City:           Troy
             StateProv:      MI
             PostalCode:     48098
             Country:        US
             RegDate:        2002-02-21
             Updated:        2011-09-24
             Ref:            https://rdap.arin.net/registry/entity/FLAGST-6
             
             
             OrgAbuseHandle: NETWO1296-ARIN
             OrgAbuseName:   Network Services
             OrgAbusePhone:  +1-248-312-2445 
             OrgAbuseEmail:  networkservices@flagstar.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO1296-ARIN
             
             OrgTechHandle: NETWO1296-ARIN
             OrgTechName:   Network Services
             OrgTechPhone:  +1-248-312-2445 
             OrgTechEmail:  networkservices@flagstar.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO1296-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.
             #