ASN Lookup Tool

County of San Luis Obispo co.slo.ca.us US US 2 Routes

AS Data

AS40248

AS40248 – County of San Luis Obispo

AS Number 40248
AS Name CSL0-AS
Organization County of San Luis Obispo(cslo-1)
Country US
Website co.slo.ca.us
Number of IPv4 Routes 2
Number of IPv6 Routes 0
ASN type GOVERNMENT
Registry ARIN
Date Allocated 2006-09-25

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Use ASN data for AS40248 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
204.88.250.0/24 256
204.88.224.0/19 8192

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:       40248
ASName:         CSL0-AS
ASHandle:       AS40248
RegDate:        2006-09-25
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/40248


OrgName:        County of San Luis Obispo
OrgId:          CSLO-1
Address:        Information Technology Department
Address:        Government Center, Room 400
City:           San Luis Obispo
StateProv:      CA
PostalCode:     93408
Country:        US
RegDate:        1994-11-17
Updated:        2009-06-09
Ref:            https://rdap.arin.net/registry/entity/CSLO-1


OrgAbuseHandle: ITDAB-ARIN
OrgAbuseName:   ITD Abuse
OrgAbusePhone:  +1-805-788-2800 
OrgAbuseEmail:  abuse@co.slo.ca.us
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ITDAB-ARIN

OrgTechHandle: ITDHO-ARIN
OrgTechName:   ITD Hostmaster
OrgTechPhone:  +1-805-788-2800 
OrgTechEmail:  hostmaster@co.slo.ca.us
OrgTechRef:    https://rdap.arin.net/registry/entity/ITDHO-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
AS7018 AT&T Enterprises, LLC US
AS3549 Level 3 Communications, Inc. (GBLX) US
AS3356 Level 3 Parent, LLC US

Upstreams

AS Number Description Country
AS3356 Level 3 Parent, LLC US

Contacts

Email Contacts

hostmaster@co.slo.ca.us

Abuse Contacts

abuse@co.slo.ca.us

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Frequently Asked Questions

ASN AS40248 is an Autonomous System Number used to identify a network for BGP internet routing.
AS40248 is listed under County of San Luis Obispo.
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.
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