ASN AS11188 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11188?

AS11188 is listed under LOS ANGELES COUNTY INTERNAL SERVICESDIVISION.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS11188 LOS ANGELES COUNTY INTERNAL SERVICESDIVISION

ASN Lookup Tool

LOS ANGELES COUNTY INTERNAL SERVICESDIVISION isd.lacounty.gov

US 49 Routes

AS Data

AS11188

AS11188 – LOS ANGELES COUNTY INTERNAL SERVICESDIVISION

AS Number	11188
AS Name	LACOUNTY-ISD
Organization	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION(lacis)
Country	US
Website	isd.lacounty.gov
Number of IPv4 Routes	49
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	1998-05-12

ASN Intelligence API for production workflows

Use ASN data for AS11188 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
159.83.252.0/24	AS11188	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION	County of Los Angeles	256
159.83.248.0/24	AS11188	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION	County of Los Angeles	256
198.51.213.0/24	AS11188	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION	County of Los Angeles	256
159.83.117.0/24	AS11188	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION	County of Los Angeles	256
159.83.51.0/24	AS11188	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION	County of Los Angeles	256
159.83.77.0/24	AS11188	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION	County of Los Angeles	256
159.225.155.0/24	AS11188	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION	Los Angeles County, Department of Health Services	256
159.83.8.0/24	AS11188	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION	County of Los Angeles	256
66.127.146.0/24	AS11188	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION	LA County Department of Health Services	256
159.83.42.0/24	AS11188	LOS ANGELES COUNTY INTERNAL SERVICESDIVISION	County of Los Angeles	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:       11188
ASName:         LACOUNTY-ISD
ASHandle:       AS11188
RegDate:        1998-05-12
Updated:        2016-11-01    
Ref:            https://rdap.arin.net/registry/autnum/11188


OrgName:        LOS ANGELES COUNTY - INTERNAL SERVICESDIVISION
OrgId:          LACIS
Address:        1110 N. EASTERN AVENUE
City:           LOS ANGELES
StateProv:      CA
PostalCode:     90063
Country:        US
RegDate:        1998-05-12
Updated:        2016-11-01
Ref:            https://rdap.arin.net/registry/entity/LACIS


OrgNOCHandle: NOC11572-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-562-940-3942 
OrgNOCEmail:  eosnotify@isd.lacounty.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC11572-ARIN

OrgAbuseHandle: IBN2-ARIN
OrgAbuseName:   ISD Breach Notification
OrgAbusePhone:  +1-562-940-2373 
OrgAbuseEmail:  EXD-ISDBreachNotification@isd.lacounty.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/IBN2-ARIN

OrgTechHandle: MCDEI-ARIN
OrgTechName:   MCDEIS
OrgTechPhone:  +1-562-940-3305 
OrgTechEmail:  appcentric@isd.lacounty.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/MCDEI-ARIN

RTechHandle: MCDEI-ARIN
RTechName:   MCDEIS
RTechPhone:  +1-562-940-3305 
RTechEmail:  appcentric@isd.lacounty.gov
RTechRef:    https://rdap.arin.net/registry/entity/MCDEI-ARIN

RNOCHandle: NOC11572-ARIN
RNOCName:   Network Operations Center
RNOCPhone:  +1-562-940-3942 
RNOCEmail:  eosnotify@isd.lacounty.gov
RNOCRef:    https://rdap.arin.net/registry/entity/NOC11572-ARIN

RAbuseHandle: IBN2-ARIN
RAbuseName:   ISD Breach Notification
RAbusePhone:  +1-562-940-2373 
RAbuseEmail:  EXD-ISDBreachNotification@isd.lacounty.gov
RAbuseRef:    https://rdap.arin.net/registry/entity/IBN2-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
AS46887	Crown Castle Fiber LLC	US
AS7018	AT&T Enterprises, LLC	US
AS20001	Charter Communications Inc	US
AS2152	CENIC	US
AS19551	Incapsula Inc	US

Upstreams

AS Number	Description	Country
AS46887	Crown Castle Fiber LLC	US
AS7018	AT&T Enterprises, LLC	US
AS20001	Charter Communications Inc	US
AS2152	CENIC	US
AS19551	Incapsula Inc	US