Report for 393256

Name

DTE-ASN - DTE Energy Company, 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 AS6447) 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.

393256 DTE-ASN, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS12129         123NET, US
    AS33668         CMCS, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
3218  AS393256       ORIGIN  Originate:      67584 /15.96  Transit:          0 /0.00  DTE-ASN, 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       %
20251 AS393256      DTE-ASN, US                                        7      2      0      5      2  28.57%


  Prefix               AS Path                              Aggregation Suggestion
  162.9.0.0/17         3257 12129 393256      
  162.9.0.0/18         3257 12129 393256    - Withdrawn - matching aggregate 162.9.0.0/17 3257 12129 393256
  162.9.64.0/18        7018 7922 33668 393256   
  162.9.140.0/23       3257 12129 393256      
  162.9.140.0/24       6939 7922 33668 393256   
  162.9.141.0/24       3257 12129 393256    - Withdrawn - matching aggregate 162.9.140.0/23 3257 12129 393256
  204.124.152.0/22     3257 12129 393256      

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

AS393256   6 More Specifics   7 Total Advertisements   DTE-ASN, US
    162.9.0.0/17                  162.9.0.0/16
    162.9.0.0/18                  162.9.0.0/16
    162.9.64.0/18                 162.9.0.0/16
    162.9.140.0/23                162.9.0.0/16
    162.9.140.0/24                162.9.0.0/16
    162.9.141.0/24                162.9.0.0/16

Whois Entry

whois: 402549

IANA has recorded AS393256 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS393256\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:       393256
             ASName:         DTE-ASN
             ASHandle:       AS393256
             RegDate:        2013-07-30
             Updated:        2013-07-30
             Ref:            https://rdap.arin.net/registry/autnum/393256
             
             
             OrgName:        DTE Energy Company
             OrgId:          DE-82
             Address:        One Energy Plaza
             City:           Detroit
             StateProv:      MI
             PostalCode:     48226
             Country:        US
             RegDate:        2013-07-10
             Updated:        2023-11-13
             Ref:            https://rdap.arin.net/registry/entity/DE-82
             
             
             OrgTechHandle: MONDA7-ARIN
             OrgTechName:   Mondal, Shantanu 
             OrgTechPhone:  +1-313-235-5000 
             OrgTechEmail:  mondals@dteenergy.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MONDA7-ARIN
             
             OrgTechHandle: SHAHA73-ARIN
             OrgTechName:   Shah, Anand 
             OrgTechPhone:  +1-313-235-8947 
             OrgTechEmail:  anand.shah@dteenergy.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/SHAHA73-ARIN
             
             OrgAbuseHandle: THORN273-ARIN
             OrgAbuseName:   Thornton, Christopher 
             OrgAbusePhone:  +1-313-235-6794 
             OrgAbuseEmail:  thorntonc@dteenergy.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/THORN273-ARIN
             
             OrgTechHandle: THORN273-ARIN
             OrgTechName:   Thornton, Christopher 
             OrgTechPhone:  +1-313-235-6794 
             OrgTechEmail:  thorntonc@dteenergy.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/THORN273-ARIN
             
             OrgNOCHandle: MONDA7-ARIN
             OrgNOCName:   Mondal, Shantanu 
             OrgNOCPhone:  +1-313-235-5000 
             OrgNOCEmail:  mondals@dteenergy.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/MONDA7-ARIN
             
             OrgAbuseHandle: CSDC1-ARIN
             OrgAbuseName:   Cyber Security Defense Center
             OrgAbusePhone:  +1-313-235-9080 
             OrgAbuseEmail:  csdc@dteenergy.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CSDC1-ARIN
             
             OrgNOCHandle: THORN273-ARIN
             OrgNOCName:   Thornton, Christopher 
             OrgNOCPhone:  +1-313-235-6794 
             OrgNOCEmail:  thorntonc@dteenergy.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/THORN273-ARIN
             
             OrgDNSHandle: THORN260-ARIN
             OrgDNSName:   Thornton, Christopher 
             OrgDNSPhone:  +1-313-235-6794 
             OrgDNSEmail:  thorntonc@dteenergy.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/THORN260-ARIN
             
             OrgRoutingHandle: WIEDE74-ARIN
             OrgRoutingName:   Wiederhold, Scott 
             OrgRoutingPhone:  +1-313-235-1647 
             OrgRoutingEmail:  scott.wiederhold@dteenergy.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/WIEDE74-ARIN
             
             OrgTechHandle: WIEDE74-ARIN
             OrgTechName:   Wiederhold, Scott 
             OrgTechPhone:  +1-313-235-1647 
             OrgTechEmail:  scott.wiederhold@dteenergy.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/WIEDE74-ARIN
             
             OrgNOCHandle: CSDC1-ARIN
             OrgNOCName:   Cyber Security Defense Center
             OrgNOCPhone:  +1-313-235-9080 
             OrgNOCEmail:  csdc@dteenergy.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/CSDC1-ARIN
             
             OrgAbuseHandle: MONDA7-ARIN
             OrgAbuseName:   Mondal, Shantanu 
             OrgAbusePhone:  +1-313-235-5000 
             OrgAbuseEmail:  mondals@dteenergy.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MONDA7-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.
             #