Report for 21799

Name

MWDSC - Metropolitan Water District of Southern California, 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.

21799 MWDSC - Metropolitan Water District of Southern California, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
29124 AS21799        ORIGIN  Originate:       1792 /21.19  Transit:          0 /0.00  MWDSC - Metropolitan Water District of Southern California, 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       %
36335 AS21799       MWDSC - Metropolitan Water District of Southe      7      0      0      7      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  144.166.53.0/24      4777 2497 3356 21799   
  144.166.55.0/24      4777 2497 3356 21799   
  144.166.56.0/24      4777 2497 3356 21799   
  144.166.74.0/24      4777 2497 3356 21799   
  144.166.174.0/24     4777 2497 3356 21799   
  144.166.176.0/24     4777 2497 3356 21799   
  144.166.178.0/24     4777 2497 3356 21799   

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

AS21799   7 More Specifics   7 Total Advertisements   MWDSC - Metropolitan Water District of Southern California, US
    144.166.53.0/24               144.166.0.0/16
    144.166.55.0/24               144.166.0.0/16
    144.166.56.0/24               144.166.0.0/16
    144.166.74.0/24               144.166.0.0/16
    144.166.174.0/24              144.166.0.0/16
    144.166.176.0/24              144.166.0.0/16
    144.166.178.0/24              144.166.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS21799 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21799\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:       21799
             ASName:         MWDSC
             ASHandle:       AS21799
             RegDate:        2001-06-21
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/21799
             
             
             OrgName:        Metropolitan Water District of Southern California
             OrgId:          MWDSC
             Address:        PO Box 54153
             City:           Los Angeles
             StateProv:      CA
             PostalCode:     90071
             Country:        US
             RegDate:        1994-03-25
             Updated:        2013-07-23
             Ref:            https://rdap.arin.net/registry/entity/MWDSC
             
             
             OrgAbuseHandle: MTI39-ARIN
             OrgAbuseName:   Ti, Meng 
             OrgAbusePhone:  +1-213-576-5131 
             OrgAbuseEmail:  mti@mwdh2o.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MTI39-ARIN
             
             OrgTechHandle: MTI39-ARIN
             OrgTechName:   Ti, Meng 
             OrgTechPhone:  +1-213-576-5131 
             OrgTechEmail:  mti@mwdh2o.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MTI39-ARIN
             
             RTechHandle: JM2640-ARIN
             RTechName:   Mohr, Jay 
             RTechPhone:  +1-213-217-7053 
             RTechEmail:  jmohr@hotmail.com
             RTechRef:    https://rdap.arin.net/registry/entity/JM2640-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.
             #