ASN AS40189 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS40189?

AS40189 is listed under LIGO Livingston Observatory.

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.

AS40189 LIGO Livingston Observatory

ASN Lookup Tool

LIGO Livingston Observatory caltech.edu

US 2 Routes

AS Data

AS40189

AS40189 – LIGO Livingston Observatory

AS Number	40189
AS Name	LLO-CALTECH
Organization	LIGO Livingston Observatory(llo-4)
Country	US
Website	caltech.edu
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	EDUCATION
Registry	ARIN
Date Allocated	2006-08-14

ASN Intelligence API for production workflows

Use ASN data for AS40189 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
208.69.128.0/22	AS40189	LIGO Livingston Observatory	LIGO Livingston Observatory	1024
2607:f390:3ff0::/44	AS40189	LIGO Livingston Observatory	Louisiana Board of Regents/Louisiana Optical Network Initiative LONI	~19×10²⁴

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:       40189
ASName:         LLO-CALTECH
ASHandle:       AS40189
RegDate:        2006-08-14
Updated:        2025-03-28    
Ref:            https://rdap.arin.net/registry/autnum/40189


OrgName:        LIGO Livingston Observatory
OrgId:          LLO-4
Address:        19100 LIGO Lane
Address:        PO Box 940
City:           Livingston
StateProv:      LA
PostalCode:     70754
Country:        US
RegDate:        2005-10-06
Updated:        2024-07-23
Ref:            https://rdap.arin.net/registry/entity/LLO-4


OrgAbuseHandle: GIARD8-ARIN
OrgAbuseName:   Giardina, Dwayne 
OrgAbusePhone:  +1-225-686-3104 
OrgAbuseEmail:  giardina@caltech.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/GIARD8-ARIN

OrgTechHandle: GIARD8-ARIN
OrgTechName:   Giardina, Dwayne 
OrgTechPhone:  +1-225-686-3104 
OrgTechEmail:  giardina@caltech.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/GIARD8-ARIN

OrgDNSHandle: GIARD8-ARIN
OrgDNSName:   Giardina, Dwayne 
OrgDNSPhone:  +1-225-686-3104 
OrgDNSEmail:  giardina@caltech.edu
OrgDNSRef:    https://rdap.arin.net/registry/entity/GIARD8-ARIN

RNOCHandle: GIARD8-ARIN
RNOCName:   Giardina, Dwayne 
RNOCPhone:  +1-225-686-3104 
RNOCEmail:  giardina@caltech.edu
RNOCRef:    https://rdap.arin.net/registry/entity/GIARD8-ARIN

RTechHandle: GIARD8-ARIN
RTechName:   Giardina, Dwayne 
RTechPhone:  +1-225-686-3104 
RTechEmail:  giardina@caltech.edu
RTechRef:    https://rdap.arin.net/registry/entity/GIARD8-ARIN

RAbuseHandle: GIARD8-ARIN
RAbuseName:   Giardina, Dwayne 
RAbusePhone:  +1-225-686-3104 
RAbuseEmail:  giardina@caltech.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/GIARD8-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
AS32440	Louisiana Board of Regents/Louisiana Optical Network Initiative LONI	US
AS32440	Louisiana Board of Regents/Louisiana Optical Network Initiative (LONI)	US

Upstreams

AS Number	Description	Country
AS32440	Louisiana Board of Regents/Louisiana Optical Network Initiative LONI	US