ASN AS19966 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19966?

AS19966 is listed under Laurion Capital Management, LP.

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.

AS19966 Laurion Capital Management, LP

ASN Lookup Tool

Laurion Capital Management, LP laurioncap.com

US 2 Routes

AS Data

AS19966

AS19966 – Laurion Capital Management, LP

AS Number	19966
AS Name	LAURION-CAPITAL-ASN
Organization	Laurion Capital Management, LP(lcml-4)
Country	US
Website	laurioncap.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2008-03-17

ASN Intelligence API for production workflows

Use ASN data for AS19966 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
208.184.217.0/24	AS19966	Laurion Capital Management, LP	Laurion Capital Management LP	256
216.200.162.0/24	AS19966	Laurion Capital Management, LP	Laurion Capital Management LP	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:       19966
ASName:         LAURION-CAPITAL-ASN
ASHandle:       AS19966
RegDate:        2008-03-17
Updated:        2019-10-19    
Ref:            https://rdap.arin.net/registry/autnum/19966


OrgName:        Laurion Capital Management, LP
OrgId:          LCML-4
Address:        360 Madison Avenue, Suite 1900
City:           New York
StateProv:      NY
PostalCode:     10017
Country:        US
RegDate:        2008-03-06
Updated:        2019-10-19
Ref:            https://rdap.arin.net/registry/entity/LCML-4


OrgRoutingHandle: GARGR4-ARIN
OrgRoutingName:   Garg, Rajiv 
OrgRoutingPhone:  +1-212-938-6300 
OrgRoutingEmail:  ops-arin@laurioncap.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/GARGR4-ARIN

OrgTechHandle: GARGR4-ARIN
OrgTechName:   Garg, Rajiv 
OrgTechPhone:  +1-212-938-6300 
OrgTechEmail:  ops-arin@laurioncap.com
OrgTechRef:    https://rdap.arin.net/registry/entity/GARGR4-ARIN

OrgDNSHandle: GARGR4-ARIN
OrgDNSName:   Garg, Rajiv 
OrgDNSPhone:  +1-212-938-6300 
OrgDNSEmail:  ops-arin@laurioncap.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/GARGR4-ARIN

OrgNOCHandle: GARGR4-ARIN
OrgNOCName:   Garg, Rajiv 
OrgNOCPhone:  +1-212-938-6300 
OrgNOCEmail:  ops-arin@laurioncap.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/GARGR4-ARIN

OrgAbuseHandle: GARGR4-ARIN
OrgAbuseName:   Garg, Rajiv 
OrgAbusePhone:  +1-212-938-6300 
OrgAbuseEmail:  ops-arin@laurioncap.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/GARGR4-ARIN

RAbuseHandle: GARGR4-ARIN
RAbuseName:   Garg, Rajiv 
RAbusePhone:  +1-212-938-6300 
RAbuseEmail:  ops-arin@laurioncap.com
RAbuseRef:    https://rdap.arin.net/registry/entity/GARGR4-ARIN

RTechHandle: GARGR4-ARIN
RTechName:   Garg, Rajiv 
RTechPhone:  +1-212-938-6300 
RTechEmail:  ops-arin@laurioncap.com
RTechRef:    https://rdap.arin.net/registry/entity/GARGR4-ARIN

RNOCHandle: GARGR4-ARIN
RNOCName:   Garg, Rajiv 
RNOCPhone:  +1-212-938-6300 
RNOCEmail:  ops-arin@laurioncap.com
RNOCRef:    https://rdap.arin.net/registry/entity/GARGR4-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
AS286	GTT Communications Inc.	NL
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US

Upstreams

AS Number	Description	Country
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US