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If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	67.43.80.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.82.0/23	COWEN EXECUTION SERVICES LLC.
	67.43.82.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.83.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.84.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.84.0/23	COWEN EXECUTION SERVICES LLC.
	67.43.85.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.88.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.89.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.91.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.93.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.95.0/24	COWEN EXECUTION SERVICES LLC.
	208.89.28.0/24	Cowen Group, Inc
	208.89.29.0/24	Cowen Group, Inc

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications	✔	✘
	AS6461	Zayo Bandwidth	✔	✘
	AS54588	Equinix, Inc.	✔	✘
	AS32787	Akamai (Prolexic)	✔	✘
	AS701	Verizon Business	✔	✘
	AS8220	COLT	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications	✔	✘
	AS6461	Zayo Bandwidth	✔	✘
	AS32787	Akamai (Prolexic)	✔	✘
	AS54588	Equinix, Inc.	✔	✘
	AS6939	Hurricane Electric LLC	✔	✘
	AS8220	COLT	✔	✘
	AS701	Verizon Business	✔	✘
	AS137409	GSL Networks Pty LTD	✔	✘
	AS49544	i3D.net B.V	✔	✘
	AS9498	Bharti Airtel Ltd.	✔	✘
	AS1239	Sprint Wireline (Cogent)	✔	✘
	AS2635	Automattic, Inc	✔	✘
	AS13335	Cloudflare, Inc.	✔	✘
	AS199524	Gcore S.A.	✔	✘

ASHandle:       AS33359
OrgID:          BNYBR
ASName:         COWEN-AS-3
ASNumber:       33359
RegDate:        2004-12-02
Updated:        2017-09-27
TechHandle:     ABA20-ARIN
Source:         ARIN



OrgID:          BNYBR
OrgName:        COWEN EXECUTION SERVICES LLC.
CanAllocate:    
Street:         599 Lexington Ave
Street:         20th Floor
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10022
RegDate:        2003-11-26
Updated:        2025-02-18
OrgAdminHandle: ABA20-ARIN
OrgTechHandle:  ABA20-ARIN
OrgTechHandle:  CHANI1-ARIN
OrgTechHandle:  PALEO-ARIN
OrgTechHandle:  YEUNG5-ARIN
OrgAbuseHandle: ABA20-ARIN
OrgAbuseHandle: YEUNG5-ARIN
Source:         ARIN





OrgAdminHandle:       ABA20-ARIN
OrgAdminName:         Andrei Bankouski
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ABA20-ARIN
OrgTechName:          Andrei Bankouski
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        CHANI1-ARIN
OrgTechName:          Irwin Chan
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        PALEO-ARIN
OrgTechName:          Anthony Paleologus
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        YEUNG5-ARIN
OrgTechName:          Dave Yeung
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ABA20-ARIN
OrgAbuseName:         Andrei Bankouski
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       YEUNG5-ARIN
OrgAbuseName:         Dave Yeung
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           ABA20-ARIN
TechName:             Andrei Bankouski
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-04-16T03:32:42Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
ARIN	as-xo-b	54993
RIPE	as-coltuk	1036
RADB	as-prole	1215
RADB	as-ec-sv	33
RADB	as-ctbc-customers241	47
RADB	as-pnapnyc	353
RADB	as-pnapnym	747
RADB	as-cv	189
RADB	as-telstra-testing-1	10184
RADB	as-telstra-intl-customers	10810
RADB	as-pnapchg	369
RADB	as-kddcustomer2	8208
ARIN	as-cowen-us	2