Report for 12257

Name

EMC-AS12257 - Dell, 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.

12257 EMC-AS12257 - Dell, Inc., US

  Adjacency:    11  Upstream:    11  Downstream:     0
  Upstream Adjacent AS list
    AS9498          BBIL-AP BHARTI Airtel Ltd., IN
    AS1273          CW Vodafone Group PLC, EU
    AS12400         PARTNER-AS, IL
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS5400          BT, GB
    AS4755          TATACOMM-AS TATA Communications formerly VSNL is Leading ISP, IN
    AS701           UUNET - Verizon Business, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US
    AS12849         HOTNET-IL HOTmobile, IL
    AS198949        RADWARE, IL
    AS4657          STARHUB-INTERNET StarHub Ltd, SG

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
7561  AS12257        ORIGIN  Originate:      17152 /17.93  Transit:          0 /0.00  EMC-AS12257 - Dell, 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       %
 2158 AS12257       EMC-AS12257 - Dell, Inc., US                      67     40     14     41     26  38.81%


  Prefix               AS Path                              Aggregation Suggestion
  12.7.200.0/24        4777 2497 7018 12257   
  128.221.192.0/24     4777 2497 7018 12257   
  128.221.208.0/23     4777 2497 7018 12257 + Announce - aggregate of 128.221.208.0/24 (4777 2497 7018 12257) and 128.221.209.0/24 (4777 2497 7018 12257)
  128.221.208.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.209.0/24 (4777 2497 7018 12257)
  128.221.209.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.208.0/24 (4777 2497 7018 12257)
  128.221.212.0/22     4777 2497 7018 12257 + Announce - aggregate of 128.221.212.0/23 (4777 2497 7018 12257) and 128.221.214.0/23 (4777 2497 7018 12257)
  128.221.212.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.213.0/24 (4777 2497 7018 12257)
  128.221.213.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.212.0/24 (4777 2497 7018 12257)
  128.221.214.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.215.0/24 (4777 2497 7018 12257)
  128.221.215.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.214.0/24 (4777 2497 7018 12257)
  128.221.216.0/21     4777 2497 7018 12257 + Announce - aggregate of 128.221.216.0/22 (4777 2497 7018 12257) and 128.221.220.0/22 (4777 2497 7018 12257)
  128.221.216.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.217.0/24 (4777 2497 7018 12257)
  128.221.217.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.216.0/24 (4777 2497 7018 12257)
  128.221.218.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.219.0/24 (4777 2497 7018 12257)
  128.221.219.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.218.0/24 (4777 2497 7018 12257)
  128.221.220.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.221.0/24 (4777 2497 7018 12257)
  128.221.221.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.220.0/24 (4777 2497 7018 12257)
  128.221.222.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.223.0/24 (4777 2497 7018 12257)
  128.221.223.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.222.0/24 (4777 2497 7018 12257)
  128.221.224.0/22     4777 2497 7018 12257 + Announce - aggregate of 128.221.224.0/23 (4777 2497 7018 12257) and 128.221.226.0/23 (4777 2497 7018 12257)
  128.221.224.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.225.0/24 (4777 2497 7018 12257)
  128.221.225.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.224.0/24 (4777 2497 7018 12257)
  128.221.226.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.227.0/24 (4777 2497 7018 12257)
  128.221.227.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.226.0/24 (4777 2497 7018 12257)
  128.221.228.0/24     4777 2497 7018 12257   
  128.221.230.0/23     4777 2497 7018 12257 + Announce - aggregate of 128.221.230.0/24 (4777 2497 7018 12257) and 128.221.231.0/24 (4777 2497 7018 12257)
  128.221.230.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.231.0/24 (4777 2497 7018 12257)
  128.221.231.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.230.0/24 (4777 2497 7018 12257)
  128.221.232.0/23     4777 2497 7018 12257 + Announce - aggregate of 128.221.232.0/24 (4777 2497 7018 12257) and 128.221.233.0/24 (4777 2497 7018 12257)
  128.221.232.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.233.0/24 (4777 2497 7018 12257)
  128.221.233.0/24     4777 2497 7018 12257 - Withdrawn - aggregated with 128.221.232.0/24 (4777 2497 7018 12257)
  128.221.235.0/24     4777 2497 7018 12257   
  128.221.237.0/24     4777 2497 7018 12257   
  128.221.239.0/24     4777 2497 7018 12257   
  132.237.141.0/24     4777 2497 701 12257    
  137.69.113.0/24      4777 2497 701 12257    
  137.69.117.0/24      4777 2497 701 12257    
  147.178.2.0/24       4777 2497 701 12257    
  147.178.4.0/23       4777 2497 7018 12257 + Announce - aggregate of 147.178.4.0/24 (4777 2497 7018 12257) and 147.178.5.0/24 (4777 2497 7018 12257)
  147.178.4.0/24       4777 2497 7018 12257 - Withdrawn - aggregated with 147.178.5.0/24 (4777 2497 7018 12257)
  147.178.5.0/24       4777 2497 7018 12257 - Withdrawn - aggregated with 147.178.4.0/24 (4777 2497 7018 12257)
  147.178.6.0/23       4777 2497 1273 12257 12257 12257 12257 + Announce - aggregate of 147.178.6.0/24 (4777 2497 1273 12257 12257 12257 12257) and 147.178.7.0/24 (4777 2497 1273 12257 12257 12257 12257)
  147.178.6.0/24       4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 147.178.7.0/24 (4777 2497 1273 12257 12257 12257 12257)
  147.178.7.0/24       4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 147.178.6.0/24 (4777 2497 1273 12257 12257 12257 12257)
  147.178.8.0/24       4608 9498 12257 12257 12257 12257 12257   
  152.62.44.0/24       4777 2516 4657 12257 12257 12257   
  152.62.47.0/24       4777 2516 4657 12257 12257 12257   
  152.62.60.0/24       4777 2516 4657 12257 12257 12257   
  152.62.97.0/24       4777 2497 174 12400 12257   
  152.62.108.0/23      4777 2497 1273 12257 12257 12257 12257 + Announce - aggregate of 152.62.108.0/24 (4777 2497 1273 12257 12257 12257 12257) and 152.62.109.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.108.0/24      4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 152.62.109.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.109.0/24      4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 152.62.108.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.110.0/24      4777 2497 1273 12257 12257 12257 12257   
  152.62.112.0/23      4777 2497 1273 12257 12257 12257 12257 + Announce - aggregate of 152.62.112.0/24 (4777 2497 1273 12257 12257 12257 12257) and 152.62.113.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.112.0/24      4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 152.62.113.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.113.0/24      4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 152.62.112.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.115.0/24      4777 2497 1273 12257 12257 12257 12257   
  152.62.118.0/24      4777 2497 174 12400 12257   
  152.62.154.0/23      4777 2497 174 12400 12257 + Announce - aggregate of 152.62.154.0/24 (4777 2497 174 12400 12257) and 152.62.155.0/24 (4777 2497 174 12400 12257)
  152.62.154.0/24      4777 2497 174 12400 12257 - Withdrawn - aggregated with 152.62.155.0/24 (4777 2497 174 12400 12257)
  152.62.155.0/24      4777 2497 174 12400 12257 - Withdrawn - aggregated with 152.62.154.0/24 (4777 2497 174 12400 12257)
  152.62.163.0/24      4777 2516 1299 12849 12257   
  152.62.164.0/23      4777 2497 1273 12257 12257 12257 12257 + Announce - aggregate of 152.62.164.0/24 (4777 2497 1273 12257 12257 12257 12257) and 152.62.165.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.164.0/24      4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 152.62.165.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.165.0/24      4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 152.62.164.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.184.0/22      4777 2497 1273 12257 12257 12257 12257 + Announce - aggregate of 152.62.184.0/23 (4777 2497 1273 12257 12257 12257 12257) and 152.62.186.0/23 (4777 2497 1273 12257 12257 12257 12257)
  152.62.184.0/24      4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 152.62.185.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.185.0/24      4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 152.62.184.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.186.0/24      4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 152.62.187.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.187.0/24      4777 2497 1273 12257 12257 12257 12257 - Withdrawn - aggregated with 152.62.186.0/24 (4777 2497 1273 12257 12257 12257 12257)
  152.62.193.0/24      4777 2497 5400 12257   
  163.244.40.0/24      4777 2497 1273 12257 12257 12257 12257   
  163.244.72.0/24      4777 2516 4657 12257 12257 12257   
  168.159.160.0/24     4608 9498 12257 12257 12257 12257 12257   
  168.159.162.0/24     4608 9498 12257 12257 12257 12257 12257   
  168.159.212.0/23     4777 2497 3356 12257 12257 12257 12257 12257 + Announce - aggregate of 168.159.212.0/24 (4777 2497 3356 12257 12257 12257 12257 12257) and 168.159.213.0/24 (4777 2497 3356 12257 12257 12257 12257 12257)
  168.159.212.0/24     4777 2497 3356 12257 12257 12257 12257 12257 - Withdrawn - aggregated with 168.159.213.0/24 (4777 2497 3356 12257 12257 12257 12257 12257)
  168.159.213.0/24     4777 2497 3356 12257 12257 12257 12257 12257 - Withdrawn - aggregated with 168.159.212.0/24 (4777 2497 3356 12257 12257 12257 12257 12257)
  168.159.215.0/24     4777 2497 3356 12257 12257 12257 12257 12257   
  198.161.247.0/24     4777 2516 1299 198949 12257   
  199.245.235.0/24     4777 2497 7018 12257   

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

AS12257   66 More Specifics   67 Total Advertisements   EMC-AS12257 - Dell, Inc., US
    12.7.200.0/24                 12.0.0.0/8
    128.221.192.0/24              128.221.0.0/16
    128.221.208.0/24              128.221.0.0/16
    128.221.209.0/24              128.221.0.0/16
    128.221.212.0/24              128.221.0.0/16
    128.221.213.0/24              128.221.0.0/16
    128.221.214.0/24              128.221.0.0/16
    128.221.215.0/24              128.221.0.0/16
    128.221.216.0/24              128.221.0.0/16
    128.221.217.0/24              128.221.0.0/16
    128.221.218.0/24              128.221.0.0/16
    128.221.219.0/24              128.221.0.0/16
    128.221.220.0/24              128.221.0.0/16
    128.221.221.0/24              128.221.0.0/16
    128.221.222.0/24              128.221.0.0/16
    128.221.223.0/24              128.221.0.0/16
    128.221.224.0/24              128.221.0.0/16
    128.221.225.0/24              128.221.0.0/16
    128.221.226.0/24              128.221.0.0/16
    128.221.227.0/24              128.221.0.0/16
    128.221.228.0/24              128.221.0.0/16
    128.221.230.0/24              128.221.0.0/16
    128.221.231.0/24              128.221.0.0/16
    128.221.232.0/24              128.221.0.0/16
    128.221.233.0/24              128.221.0.0/16
    128.221.235.0/24              128.221.0.0/16
    128.221.237.0/24              128.221.0.0/16
    128.221.239.0/24              128.221.0.0/16
    132.237.141.0/24              132.237.128.0/18
    137.69.113.0/24               137.69.0.0/16
    137.69.117.0/24               137.69.0.0/16
    147.178.2.0/24                147.178.0.0/16
    147.178.4.0/24                147.178.0.0/16
    147.178.5.0/24                147.178.0.0/16
    147.178.6.0/24                147.178.0.0/16
    147.178.7.0/24                147.178.0.0/16
    147.178.8.0/24                147.178.0.0/16
    152.62.44.0/24                152.62.0.0/16
    152.62.47.0/24                152.62.0.0/16
    152.62.60.0/24                152.62.0.0/16
    152.62.97.0/24                152.62.0.0/16
    152.62.108.0/24               152.62.0.0/16
    152.62.109.0/24               152.62.0.0/16
    152.62.110.0/24               152.62.0.0/16
    152.62.112.0/24               152.62.0.0/16
    152.62.113.0/24               152.62.0.0/16
    152.62.115.0/24               152.62.0.0/16
    152.62.118.0/24               152.62.0.0/16
    152.62.154.0/24               152.62.0.0/16
    152.62.155.0/24               152.62.0.0/16
    152.62.163.0/24               152.62.0.0/16
    152.62.164.0/24               152.62.0.0/16
    152.62.165.0/24               152.62.0.0/16
    152.62.184.0/24               152.62.0.0/16
    152.62.185.0/24               152.62.0.0/16
    152.62.186.0/24               152.62.0.0/16
    152.62.187.0/24               152.62.0.0/16
    152.62.193.0/24               152.62.0.0/16
    163.244.40.0/24               163.244.0.0/16
    163.244.72.0/24               163.244.0.0/16
    168.159.160.0/24              168.159.0.0/16
    168.159.162.0/24              168.159.0.0/16
    168.159.212.0/24              168.159.0.0/16
    168.159.213.0/24              168.159.0.0/16
    168.159.215.0/24              168.159.0.0/16
    198.161.247.0/24              198.161.246.0/23

Whois Entry

whois: 402332

IANA has recorded AS12257 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS12257\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:       12257
             ASName:         EMC-AS12257
             ASHandle:       AS12257
             RegDate:        1999-05-03
             Updated:        2023-03-20
             Ref:            https://rdap.arin.net/registry/autnum/12257
             
             
             OrgName:        Dell, Inc.
             OrgId:          DCC-25
             Address:        One Dell Way
             City:           Round Rock
             StateProv:      TX
             PostalCode:     78682
             Country:        US
             RegDate:        1990-09-26
             Updated:        2024-11-25
             Ref:            https://rdap.arin.net/registry/entity/DCC-25
             
             
             OrgTechHandle: ANDER430-ARIN
             OrgTechName:   Anderson, Colm 
             OrgTechPhone:  +0035312795000 
             OrgTechEmail:  colm_anderson@dell.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ANDER430-ARIN
             
             OrgDNSHandle: PRESS58-ARIN
             OrgDNSName:   Pressley, James 
             OrgDNSPhone:  +1-214-326-9581 
             OrgDNSEmail:  james.pressley@dell.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/PRESS58-ARIN
             
             OrgDNSHandle: ANDER430-ARIN
             OrgDNSName:   Anderson, Colm 
             OrgDNSPhone:  +0035312795000 
             OrgDNSEmail:  colm_anderson@dell.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/ANDER430-ARIN
             
             OrgAbuseHandle: OPERA394-ARIN
             OrgAbuseName:   Operations Center
             OrgAbusePhone:  +1-866-434-8368 
             OrgAbuseEmail:  ipregistrars.abuse@dell.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/OPERA394-ARIN
             
             OrgNOCHandle: OPERA394-ARIN
             OrgNOCName:   Operations Center
             OrgNOCPhone:  +1-866-434-8368 
             OrgNOCEmail:  ipregistrars.abuse@dell.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/OPERA394-ARIN
             
             OrgTechHandle: PRESS58-ARIN
             OrgTechName:   Pressley, James 
             OrgTechPhone:  +1-214-326-9581 
             OrgTechEmail:  james.pressley@dell.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/PRESS58-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.
             #