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	Prefix	Description
	74.115.129.0/24	Cboe
	74.115.135.0/24	Cboe
	198.160.149.0/24	Cboe
	198.160.150.0/24	Cboe

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS6461	Zayo Bandwidth	✔	✘
	AS3356	Lumen (Level 3)	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS6461	Zayo Bandwidth	✔	✘
	AS3356	Lumen (Level 3)	✔	✘

ASHandle:       AS16760
OrgID:          CBL-172
ASName:         CBOE
ASNumber:       16760
RegDate:        2000-06-06
Updated:        2023-12-01
Source:         ARIN



OrgID:          CBL-172
OrgName:        Cboe
CanAllocate:    
Street:         433 W Van Buren St. 700S
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60607
RegDate:        2023-06-09
Updated:        2023-07-12
OrgAdminHandle: NETWO6184-ARIN
OrgTechHandle:  NETWO1912-ARIN
OrgAbuseHandle: NETWO1914-ARIN
Source:         ARIN





OrgAdminHandle:       NETWO6184-ARIN
OrgAdminName:          Network Administration
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        NETWO1912-ARIN
OrgTechName:           Network Engineering
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       NETWO1914-ARIN
OrgAbuseName:          Network Abuse
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-06-14T03:27:47Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
ARIN	as-xo-b	59971
ARIN	as-xo	1
RADB	as-psinetus-mc	480
LEVEL3	as-lumen-customers-asns	10695