Report for 21581

Name

M5HOSTING - M5 Computer Security, 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.

21581 M5HOSTING - M5 Computer Security, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS11320         LIGHTEDGE-AS-02 - LightEdge Solutions, US
    AS6130          AIS-WEST - American Internet Services, LLC., US
    AS174           COGENT-174 - Cogent Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
11361 AS21581        ORIGIN  Originate:       8448 /18.96  Transit:          0 /0.00  M5HOSTING - M5 Computer Security, 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       %
 7257 AS21581       M5HOSTING - M5 Computer Security, US              18      6      0     12      6  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  38.96.14.0/24        4777 2497 174 21581    
  108.161.144.0/20     4777 2497 174 21581    
  108.161.144.0/24     4777 2497 174 21581  - Withdrawn - matching aggregate 108.161.144.0/20 4777 2497 174 21581
  108.161.145.0/24     4777 2497 174 21581  - Withdrawn - matching aggregate 108.161.144.0/20 4777 2497 174 21581
  108.161.146.0/24     4777 2497 174 21581  - Withdrawn - matching aggregate 108.161.144.0/20 4777 2497 174 21581
  108.161.148.0/24     4777 2497 174 21581  - Withdrawn - matching aggregate 108.161.144.0/20 4777 2497 174 21581
  108.161.151.0/24     4777 2497 174 21581  - Withdrawn - matching aggregate 108.161.144.0/20 4777 2497 174 21581
  108.161.156.0/24     4777 2497 174 21581  - Withdrawn - matching aggregate 108.161.144.0/20 4777 2497 174 21581
  206.71.169.0/24      4777 2497 174 21581    
  206.71.179.0/24      4777 2497 174 21581    
  206.71.190.0/24      4777 2497 174 21581    
  206.251.244.0/24     4777 2497 174 21581    
  206.251.255.0/24     4777 2497 174 21581    
  207.158.15.0/24      4777 2497 174 21581    
  207.158.30.0/24      4777 2497 174 21581    
  207.158.37.0/24      4777 2497 174 21581    
  207.158.52.0/24      4777 2497 174 21581    
  209.216.230.0/24     4777 2497 174 21581    

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

AS21581   17 More Specifics   18 Total Advertisements   M5HOSTING - M5 Computer Security, US
    38.96.14.0/24                 38.0.0.0/8
    108.161.144.0/24              108.161.144.0/20
    108.161.145.0/24              108.161.144.0/20
    108.161.146.0/24              108.161.144.0/20
    108.161.148.0/24              108.161.144.0/20
    108.161.151.0/24              108.161.144.0/20
    108.161.156.0/24              108.161.144.0/20
    206.71.169.0/24               206.71.160.0/19
    206.71.179.0/24               206.71.160.0/19
    206.71.190.0/24               206.71.160.0/19
    206.251.244.0/24              206.251.224.0/19
    206.251.255.0/24              206.251.224.0/19
    207.158.15.0/24               207.158.0.0/18
    207.158.30.0/24               207.158.0.0/18
    207.158.37.0/24               207.158.0.0/18
    207.158.52.0/24               207.158.0.0/18
    209.216.230.0/24              209.216.192.0/18
    108.161.156.0/23              108.161.144.0/20

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 108.161.156.0/24            Announced
    - 108.161.156.0/23            Withdrawn

Whois Entry

whois: 402332

IANA has recorded AS21581 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21581\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:       21581
             ASName:         M5HOSTING
             ASHandle:       AS21581
             RegDate:        2008-05-28
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/21581
             
             
             OrgName:        M5 Computer Security
             OrgId:          MCS-227
             Address:        10601 Tierrasanta Blvd #G-135
             City:           San Diego
             StateProv:      CA
             PostalCode:     92124
             Country:        US
             RegDate:        2005-11-09
             Updated:        2025-01-23
             Ref:            https://rdap.arin.net/registry/entity/MCS-227
             
             
             OrgAbuseHandle: ABUSE1898-ARIN
             OrgAbuseName:   Abuse
             OrgAbusePhone:  +1-877-344-4678 
             OrgAbuseEmail:  abuse@m5hosting.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE1898-ARIN
             
             OrgTechHandle: KILLI120-ARIN
             OrgTechName:   Killian, John 
             OrgTechPhone:  +1-877-344-4678 
             OrgTechEmail:  jkillian@m5hosting.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/KILLI120-ARIN
             
             RAbuseHandle: ABUSE1898-ARIN
             RAbuseName:   Abuse
             RAbusePhone:  +1-877-344-4678 
             RAbuseEmail:  abuse@m5hosting.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE1898-ARIN
             
             RTechHandle: MMC112-ARIN
             RTechName:   McCafferty, Michael 
             RTechPhone:  +1-877-344-4678 
             RTechEmail:  mike@m5hosting.com
             RTechRef:    https://rdap.arin.net/registry/entity/MMC112-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.
             #