ASN Lookup Tool

Metropolitan Water District of Southern California mwdh2o.com US US 7 Routes

AS Data

AS21799

AS21799 – Metropolitan Water District of Southern California

AS Number 21799
AS Name MWDSC
Organization Metropolitan Water District of Southern California(mwdsc)
Country US
Website mwdh2o.com
Number of IPv4 Routes 7
Number of IPv6 Routes 0
ASN type GOVERNMENT
Registry ARIN
Date Allocated 2001-06-21

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Use ASN data for AS21799 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
144.166.53.0/24 256
144.166.176.0/24 256
144.166.178.0/24 256
144.166.74.0/24 256
144.166.174.0/24 256
144.166.55.0/24 256
144.166.56.0/24 256

Raw Whois Response

#
# 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


OrgTechHandle: MTI39-ARIN
OrgTechName:   Ti, Meng 
OrgTechPhone:  +1-231-217-5596 
OrgTechEmail:  mti@mwdh2o.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MTI39-ARIN

OrgAbuseHandle: MTI39-ARIN
OrgAbuseName:   Ti, Meng 
OrgAbusePhone:  +1-231-217-5596 
OrgAbuseEmail:  mti@mwdh2o.com
OrgAbuseRef:    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.
#

Parsed Whois Response

Peers

AS Number Description Country
AS3549 Level 3 Communications, Inc. (GBLX) US
AS3356 Level 3 Parent, LLC US
AS6461 Zayo Bandwidth US

Upstreams

AS Number Description Country
AS3356 Level 3 Parent, LLC US
AS6461 Zayo Bandwidth US

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Frequently Asked Questions

ASN AS21799 is an Autonomous System Number used to identify a network for BGP internet routing.
AS21799 is listed under Metropolitan Water District of Southern California.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.