View

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.
	67.43.84.0/23	COWEN EXECUTION SERVICES LLC.
	67.43.84.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.85.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.88.0/24	COWEN EXECUTION SERVICES LLC.
	67.43.88.0/23	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.
	208.89.28.0/24	Cowen Group, Inc
	208.89.29.0/24	Cowen Group, Inc

---

Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation (disabled due to size) Policy priceless_germain Policy optimistic_mcnulty Policy trusting_stonebraker Policy serene_goodall Policy sleepy_haibt Policy youthful_lehmann

Chart Display Options

Display links using non straight lines

Prefixes in selected policy

Load all prefixes in policy

---

How are upstreams and downstreams calculated?

Upstreams

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

---

Peers

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications, LLC	✔	✘
	AS6461	Zayo Bandwidth	✔	✘
	AS32787	Akamai (Prolexic)	✔	✘
	AS8220	COLT	✔	✘
	AS6939	Hurricane Electric LLC	✔	✘
	AS701	Verizon Business	✔	✘
	AS137409	GSL Networks Pty LTD	✔	✘
	AS52320	V.tal (GlobeNet)	✔	✘
	AS49544	i3D.net B.V	✔	✘
	AS9498	Bharti Airtel Ltd.	✔	✘
	AS1239	Sprint Wireline (Cogent)	✔	✘
	AS2635	Automattic, Inc	✔	✘
	AS199524	Gcore S.A.	✔	✘
	AS24482	SG.GS	✔	✘

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:        2025-10-27
OrgAdminHandle: ABA20-ARIN
OrgTechHandle:  ABA20-ARIN
OrgTechHandle:  CHANI1-ARIN
OrgTechHandle:  PALEO-ARIN
OrgAbuseHandle: ABA20-ARIN
OrgAbuseHandle: TDDNS-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


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


OrgAbuseHandle:       TDDNS-ARIN
OrgAbuseName:          TD-DNS-POC
# 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: 2026-02-09T03:27:22Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RADB	as-cv	189
RADB	as-pnapchg	367
RADB	as-telstra-intl-customers	12012
RADB	as-ctbc-customers241	47
RADB	as-pnapnym	872
RADB	as-telstra-testing-1	11788
RADB	as-prole	1194
RIPE	as8220:as-coltuk	735
RADB	as-pnapnyc	352
RADB	as-kddcustomer2	8206
ARIN	as-xo-b	58137
ARIN	as-cowen-us	2
RADB	as-ec-sv	40