ASN AS13968 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS13968?

AS13968 is listed under CALIFORNIA ISO.

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?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS13968 CALIFORNIA ISO | IPGeolocation.io

ASN Lookup Tool

CALIFORNIA ISO caiso.com

US 8 Routes

AS Data

AS13968

AS13968 – CALIFORNIA ISO

AS Number	13968
AS Name	CAISO-NET-BLK
Organization	CALIFORNIA ISO(califo-22)
Country	US
Website	caiso.com
Number of IPv4 Routes	8
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	1999-09-24

ASN Intelligence API for production workflows

Use ASN data for AS13968 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
12.200.57.0/24	AS13968	CALIFORNIA ISO	CALIFORNIA ISO	256
45.42.17.0/24	AS13968	CALIFORNIA ISO	CALIFORNIA ISO	256
45.42.19.0/24	AS13968	CALIFORNIA ISO	CALIFORNIA ISO	256
12.200.60.0/24	AS13968	CALIFORNIA ISO	CALIFORNIA ISO	256
45.42.23.0/24	AS13968	CALIFORNIA ISO	CALIFORNIA ISO	256
45.42.22.0/24	AS13968	CALIFORNIA ISO	CALIFORNIA ISO	256
12.231.58.0/24	AS13968	CALIFORNIA ISO	CALIFORNIA ISO	256
45.42.16.0/24	AS13968	CALIFORNIA ISO	CALIFORNIA ISO	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:       13968
ASName:         CAISO-NET-BLK
ASHandle:       AS13968
RegDate:        1999-09-24
Updated:        2023-07-11    
Ref:            https://rdap.arin.net/registry/autnum/13968


OrgName:        CALIFORNIA ISO
OrgId:          CALIFO-22
Address:        250 Outcropping Way
City:           Folsom
StateProv:      CA
PostalCode:     95630
Country:        US
RegDate:        1999-09-24
Updated:        2023-07-11
Ref:            https://rdap.arin.net/registry/entity/CALIFO-22


OrgRoutingHandle: LIMDA5-ARIN
OrgRoutingName:   Lim, Danny 
OrgRoutingPhone:  +1-916-293-2962 
OrgRoutingEmail:  ylim@caiso.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/LIMDA5-ARIN

OrgNOCHandle: LIMDA5-ARIN
OrgNOCName:   Lim, Danny 
OrgNOCPhone:  +1-916-293-2962 
OrgNOCEmail:  ylim@caiso.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/LIMDA5-ARIN

OrgAbuseHandle: RMM3-ARIN
OrgAbuseName:   Melis, Robert Michael
OrgAbusePhone:  +1-916-351-2372 
OrgAbuseEmail:  rmelis@caiso.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RMM3-ARIN

OrgTechHandle: RMM3-ARIN
OrgTechName:   Melis, Robert Michael
OrgTechPhone:  +1-916-351-2372 
OrgTechEmail:  rmelis@caiso.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RMM3-ARIN

OrgAbuseHandle: LIMDA5-ARIN
OrgAbuseName:   Lim, Danny 
OrgAbusePhone:  +1-916-293-2962 
OrgAbuseEmail:  ylim@caiso.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LIMDA5-ARIN

OrgTechHandle: LIMDA5-ARIN
OrgTechName:   Lim, Danny 
OrgTechPhone:  +1-916-293-2962 
OrgTechEmail:  ylim@caiso.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LIMDA5-ARIN

OrgDNSHandle: LIMDA5-ARIN
OrgDNSName:   Lim, Danny 
OrgDNSPhone:  +1-916-293-2962 
OrgDNSEmail:  ylim@caiso.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/LIMDA5-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
AS55002	F5, Inc.	US

Upstreams

AS Number	Description	Country
AS55002	F5, Inc.	US