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	Prefix	Description
	8.9.239.0/24	Level 3 Parent, LLC
	64.156.56.0/24	Level 3 Parent, LLC
	64.238.144.0/20	CyrusOne LLC
	65.88.84.0/22	CyrusOne LLC
	65.90.80.0/21	CyrusOne LLC
	67.96.16.0/22	CyrusOne LLC
	67.96.20.0/24	CyrusOne LLC
	67.96.24.0/21	CyrusOne LLC
	67.208.144.0/20	CyrusOne LLC
	67.208.145.0/24	CBTS Virtual Data Center
	67.208.146.0/24	F & W Media
	69.176.96.0/24	Bureau Veritas Consumer Products Services
	69.176.96.0/20	CyrusOne LLC
	69.176.109.0/24	PDF Solutions, Inc.
	72.250.203.0/24	CyrusOne LLC
	72.250.204.0/23	CyrusOne LLC
	72.250.206.0/23	CyrusOne LLC
	76.77.152.0/22	CyrusOne LLC
	76.77.156.0/24	Buchanan Technologies
	76.77.156.0/22	CyrusOne LLC
	139.60.112.0/24	CARFAX, Inc.
	139.60.113.0/24	CARFAX, Inc.
	140.162.8.0/22	Leidos, Inc.
	167.253.57.0/24	Hi-Link Technology Group, LLC
	192.75.58.0/24	Shell Federal Credit Union
	192.196.240.0/20	CyrusOne LLC
	192.203.96.0/24	Teacher Retirement System of Texas
	198.22.239.0/24	Linde Inc.
	198.22.240.0/24	Linde Inc.
	198.32.8.0/21	CyrusOne LLC
	198.32.16.0/20	CyrusOne LLC
	198.32.32.0/19	CyrusOne LLC
	198.32.64.0/19	CyrusOne LLC
	198.32.126.0/23	CyrusOne LLC
	198.32.131.0/24	CyrusOne LLC
	198.32.136.0/21	CyrusOne LLC
	198.32.145.0/24	CyrusOne LLC
	198.32.147.0/24	CyrusOne LLC
	198.32.148.0/22	CyrusOne LLC
	198.32.152.0/21	CyrusOne LLC
	198.32.164.0/24	CyrusOne LLC
	198.32.166.0/23	CyrusOne LLC
	198.32.168.0/22	CyrusOne LLC
	198.32.172.0/23	CyrusOne LLC
	198.32.184.0/23	CyrusOne LLC
	198.32.187.0/24	CyrusOne LLC
	198.32.188.0/23	CyrusOne LLC
	198.32.193.0/24	CyrusOne LLC
	198.32.197.0/24	CyrusOne LLC
	198.32.198.0/23	CyrusOne LLC
	198.32.200.0/21	CyrusOne LLC
	198.32.200.0/24	Citrin Cooperman & Company LLP
	198.32.208.0/20	CyrusOne LLC
	198.32.240.0/24	CyrusOne LLC
	198.32.244.0/22	CyrusOne LLC
	198.32.248.0/21	CyrusOne LLC
	198.58.73.0/24	CyrusOne LLC
	198.58.75.0/24	CyrusOne LLC
	198.58.76.0/24	CyrusOne LLC
	198.58.77.0/24	CyrusOne LLC
	198.58.78.0/24	CyrusOne LLC
	198.58.79.0/24	CyrusOne LLC
	198.136.250.0/24	Texas Mutual Insurance Company
	199.19.244.0/23	The E.W. Scripps Company
	199.19.244.0/22	The E.W. Scripps Company
	199.87.118.0/24	CyrusOne LLC
	199.87.119.0/24	CyrusOne LLC
	199.119.212.0/24	Leidos Engineering LLC
	199.119.214.0/24	CyrusOne LLC
	199.167.60.0/22	CyrusOne LLC
	199.231.196.0/22	CyrusOne LLC
	204.16.60.0/22	CyrusOne LLC
	204.138.255.0/24	Viking Global Investors LP
	205.236.78.0/24	National Default Exchange Holdings, LP
	205.236.79.0/24	National Default Exchange Holdings, LP
	206.220.240.0/20	CyrusOne LLC
	209.80.131.0/24	CherryRoad Technologies, Inc.
	209.172.192.0/19	CyrusOne LLC
	209.172.194.0/23	John Wiley & Sons Inc
	209.172.196.0/23	CyrusOne LLC
	209.172.199.0/24	CyrusOne LLC
	209.172.201.0/24	CyrusOne LLC
	209.172.202.0/23	CyrusOne LLC
	209.172.204.0/22	CyrusOne LLC
	209.172.204.0/24	Files Anywhere Inc
	209.172.206.0/24	Files Anywhere Inc
	209.172.208.0/22	CyrusOne LLC
	209.172.210.0/23	CyrusOne LLC
	209.172.212.0/23	CyrusOne LLC
	209.172.214.0/23	CyrusOne LLC
	209.172.216.0/23	CyrusOne LLC
	209.182.248.0/24	Fi-Tek LLC
	209.182.249.0/24	Fi-Tek LLC
	209.242.64.0/18	CyrusOne LLC
	209.242.74.0/24	UniRush LLC
	209.242.80.0/23	CyrusOne LLC
	209.242.95.0/24	CyrusOne LLC
	209.242.120.0/21	CyrusOne LLC
	209.242.126.0/23	CyrusOne LLC
	216.117.0.0/23	CyrusOne LLC
	216.117.0.0/20	CyrusOne LLC
	216.117.2.0/23	CyrusOne LLC
	216.117.4.0/24	CFDynamics
	216.117.5.0/24	CFDynamics
	216.117.7.0/24	CFDynamics
	216.117.14.0/23	CyrusOne LLC
	216.117.16.0/21	CyrusOne LLC
	216.117.24.0/23	CyrusOne LLC
	216.117.25.0/24	Carfax
	216.117.28.0/24	CyrusOne LLC
	216.117.30.0/24	BKR Studios
	216.117.40.0/24	CyrusOne LLC
	216.117.43.0/24	Cognizant BigSky
	216.117.46.0/23	CyrusOne LLC
	216.117.52.0/24	CyrusOne LLC
	216.117.52.0/22	CyrusOne LLC
	216.117.53.0/24	Yana Systems
	216.117.56.0/24	CyrusOne LLC
	216.117.57.0/24	Entrust Inc.
	216.117.58.0/24	CyrusOne LLC
	216.117.59.0/24	CyrusOne LLC
	216.117.61.0/24	CyrusOne LLC
	216.117.65.0/24	CyrusOne LLC
	216.117.67.0/24	CyrusOne LLC
	216.117.71.0/24	Texas Dow Employees Credit Union (TDECU)
	216.117.72.0/23	CyrusOne LLC
	216.117.80.0/24	Caltech
	216.117.80.0/23	CyrusOne LLC
	216.117.82.0/23	CyrusOne LLC
	216.117.86.0/23	CyrusOne LLC
	216.117.88.0/24	Texas Dow Employees Credit Union (TDECU)
	216.117.89.0/24	CyrusOne LLC
	216.117.90.0/24	Pinnacle Business Systems
	216.117.91.0/24	CyrusOne LLC
	216.117.92.0/23	CyrusOne LLC
	216.117.93.0/24	Venicom
	216.117.96.0/23	CyrusOne LLC
	216.117.96.0/20	CyrusOne LLC
	216.117.105.0/24	Carfax Inc
	216.143.8.0/21	CyrusOne LLC
	216.195.64.0/19	CyrusOne LLC
	216.195.76.0/24	NXG Datacenter Colocation
	216.195.90.0/24	Cincinnati Bell Technology Solutions
	216.195.91.0/24	SMB
	216.195.94.0/24	CyrusOne LLC
	216.223.160.0/23	CyrusOne LLC
	216.223.161.0/24	Cadwalader Wickersham & Taft
	216.223.165.0/24	CyrusOne LLC
	216.223.166.0/24	CyrusOne LLC
	216.223.168.0/23	CyrusOne LLC
	216.223.174.0/24	CyrusOne LLC
	216.223.175.0/24	CyrusOne LLC
	216.223.176.0/23	CyrusOne LLC
	216.223.178.0/24	CyrusOne LLC
	216.223.179.0/24	Retail Finance International Holdings
	216.223.180.0/23	CyrusOne LLC
	216.223.188.0/24	CFDynamics
	216.223.188.0/22	CyrusOne LLC
	216.223.189.0/24	CFDynamics
	216.244.96.0/19	CyrusOne LLC
	216.244.113.0/24	CyrusOne Managed Services
	216.244.122.0/24	Citrin Cooperman & Company LLP
	216.244.124.0/24	Cadwalader Wickersham & Taft
	198.32.174.0/24	CyrusOne LLC
	198.32.180.0/24	CyrusOne LLC
	216.223.184.0/24	Joint Commission Resources
	2605:9600::/32	CyrusOne LLC
	2607:ff70::/32	CyrusOne LLC
	2607:ff70:2::/48	Cincinnati Bell Technology Solutions
	2610:190::/38	CyrusOne LLC
	2610:190:1c00::/38	CyrusOne LLC
	2610:190:6000::/39	CyrusOne LLC
	2610:190:6001::/48	CyrusOne LLC
	2610:190:8000::/39	CyrusOne LLC
	2610:190:df00::/40	CyrusOne LLC
	2610:190:dfff::/48	CyrusOne LLC

---

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 xenodochial_khorana Policy hopeful_kirch Policy sweet_khayyam Policy vigilant_mclean Policy eager_dubinsky Policy distracted_hermann Policy nostalgic_aryabhata Policy pedantic_burnell Policy pensive_shannon Policy cranky_dubinsky Policy lucid_diffie Policy naughty_euclid Policy suspicious_gagarin Policy priceless_johnson Policy heuristic_mestorf Policy eager_jang Policy sleepy_bell Policy peaceful_ganguly Policy distracted_swirles Policy brave_greider Policy trusting_shannon Policy vigilant_gagarin Policy flamboyant_spence

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS3356	Lumen (Level 3)	✔	✔
	AS174	Cogent Communications, LLC	✔	✔
	AS3257	GTT Communications Inc.	✔	✔
	AS6461	Zayo Bandwidth	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS6461	Zayo Bandwidth	✔	✔
	AS3356	Lumen (Level 3)	✔	✔
	AS174	Cogent Communications, LLC	✔	✔
	AS3257	GTT Communications Inc.	✔	✔
	AS19137	Epsilon Interactive LLC	✔	✘
	AS6939	Hurricane Electric LLC	✔	✔
	AS2165	HP Inc.	✔	✔
	AS393571	Konica Minolta Business Solutions U.S.A, Inc.	✔	✘
	AS19	Leidos, Inc.	✔	✔
	AS18676	Avaya LLC	✔	✘
	AS18649	Mitel Networks, Inc.	✔	✘
	AS396940	HTH	✔	✘
	AS400615	Data Canopy Colocation, LLC	✔	✘
	AS396936	HTH	✔	✘
	AS30673	Finthrive, Inc.	✔	✘
	AS63474	Sirius Computer Solutions, Inc.	✔	✘
	AS397325	Data Canopy Colocation, LLC	✔	✘
	AS32097	WholeSale Internet, Inc.	✔	✘
	AS137409	GSL Networks Pty LTD	✔	✘
	AS10848	NTT DATA Services, LLC	✔	✘
	AS3828	Cirrus Logic Inc.	✔	✘
	AS26351	First Horizon National Corporation	✔	✘
	AS22575	Massachusetts Mutual Life Insurance Company	✔	✘
	AS396290	Nielsen Consumer LLC	✔	✘
	AS393759	City of Austin, Texas	✔	✘
	AS14032	Foot Locker Corporate Services, Inc	✔	✔
	AS46696	Sidus Group, LLC	✔	✔
	AS400537	Morningstar, Inc.	✔	✘
	AS11189	Caliber Home Loans, Inc.	✔	✘
	AS46202	Michaels Stores, Inc.	✔	✘
	AS16391	Celito Communications Inc.	✔	✔
	AS25091	IP-Max SA	✔	✔
	AS17377	Spectra Energy Corporation	✔	✘
	AS393587	Ulta, Inc.	✔	✘
	AS21945	Harland Clarke Corp.	✔	✘
	AS22334	Ferguson Enterprises, LLC	✔	✘
	AS398492	Momentive Performance Materials Inc.	✔	✘
	AS60269	XYLEM WATER SOLUTIONS GLOBAL SERVICES AB	✔	✘
	AS53559	KST Networks	✔	✘
	AS394177	Shift Hosting LLC	✔	✔
	AS25765	CQG, Inc.	✔	✘
	AS25907	BRINKER INTERNATIONAL INC	✔	✘
	AS20333	Cloudwave	✔	✘
	AS10511	CC Services, Inc	✔	✘
	AS40062	Ascend Learning, LLC	✔	✘
	AS30175	EPICOR	✔	✘
	AS53396	STRAC	✔	✘
	AS395268	Insperity Services, L.P.	✔	✘
	AS18689	Gwynn Group Inc.	✔	✘
	AS30423	Amedisys, Inc.	✔	✘
	AS20339	Rosenthal & Rosenthal Inc.	✔	✘
	AS36328	CalTech Software Systems Inc.	✔	✘
	AS397374	Loan Science	✔	✘
	AS401985	Family Dollar	✔	✘
	AS396285	Cincinnati Bell Technology Solutions	✔	✘
	AS394122	Debevoise and Plimpton LLP	✔	✘
	AS399604	EXL SERVICE.COM, LLC	✔	✘
	AS19787	First Eagle Investment Management LLC	✔	✘
	AS22775	Moore Capital Management	✔	✘
	AS53736	Nutanix	✘	✔
	AS19606	THE NIELSEN COMPANY (US), LLC	✔	✘
	AS46204	McDermott, Will, and Emery	✔	✘
	AS33016	Payward, Inc.	✔	✘
	AS53305	Transdev North America, Inc.	✔	✘
	AS53562	DriveTime	✔	✘
	AS16678	Austin Radiological Association	✔	✘
	AS21961	JBS USA Holdings	✔	✘
	AS399319	Superior Plus Corp.	✔	✘
	AS397768	MedStar Mobile Healthcare	✔	✘
	AS395288	Collin County Community College District	✔	✘
	AS10723	Meritage Group LP	✔	✘
	AS53542	MERCHANT ESOLUTIONS, INC.	✔	✘
	AS401237	CVR Services, LLC	✔	✘
	AS2723	ENDURANCE REINSURANCE CORPORATION OF AMERICA	✔	✘
	AS36607	Association for Computing Machinery, Inc	✔	✘
	AS31966	CSAA Insurance Exchange	✔	✘
	AS22688	Dollar General Corporation	✔	✘
	AS23463	Lone Pine Capital LLC	✔	✘
	AS23010	Fried, Frank, Harris, Shriver & Jacobson LLP	✔	✘
	AS49544	i3D.net B.V	✔	✔
	AS22104	Gelber Group, LLC	✔	✘
	AS35847	Ezee Fiber	✔	✔
	AS209823	Enki Multimedia EURL	✔	✔
	AS46282	Boeing Distribution, Inc.	✔	✘
	AS397843	EyeCare Services Partners Management LLC	✔	✘
	AS62467	TXNet Communications LLC	✔	✔
	AS398409	EyeCare Services Partners Management LLC	✔	✘
	AS17038	FTD	✔	✘
	AS4230	Claro (Embratel)	✔	✔
	AS20473	The Constant Company, LLC	✔	✔
	AS394302	Qualcomm, Inc.	✘	✔
	AS52025	ParadoxNetworks Limited	✔	✔
	AS54775	Ally Financial Inc.	✔	✘
	AS397423	Tier.Net Technologies LLC	✔	✔
	AS33218	Belzoni Cable, LLC	✔	✘
	AS63321	Rent-A-Center Inc.	✔	✘
	AS395273	Altafiber	✔	✘
	AS14907	Wikimedia Foundation Inc.	✔	✔
	AS1097	Core Transit LLC	✔	✔
	AS199524	Gcore S.A.	✔	✔
	AS393961	Farm Bureau Bank	✔	✘
	AS4455	IX Reach Ltd	✔	✔
	AS32590	Valve Corporation	✔	✔
	AS42473	Anexia Cloud Solutions GmbH	✔	✔
	AS17378	TierPoint, LLC	✔	✔
	AS28398	INTERNET TELEFONIA Y TV DE MICHOACAN SA DE CV	✔	✘
	AS51531	DE-CIX Management GmbH	✔	✘
	AS28283	Adyl Telecom	✔	✔
	AS396497	Centre Technologies, Inc.	✔	✘
	AS62659	Q2 Software, Inc.	✔	✘
	AS6300	Fidium	✔	✘
	AS394437	PS Lightwave	✘	✔
	AS8928	GTT Communications Inc.	✔	✘
	AS393924	RigNet Inc	✘	✔
	AS971	PureVoltage Hosting Inc.	✘	✔
	AS15169	Google LLC	✔	✘
	AS1239	Sprint Wireline (Cogent)	✔	✘
	AS29802	HIVELOCITY, Inc.	✘	✔

---

Downstreams

	ASN	Description	IPv4	IPv6
	AS19137	Epsilon Interactive LLC	✔	✘
	AS393571	Konica Minolta Business Solutions U.S.A, Inc.	✔	✘
	AS2165	HP Inc.	✔	✔
	AS19	Leidos, Inc.	✔	✔
	AS18676	Avaya LLC	✔	✘
	AS400615	Data Canopy Colocation, LLC	✔	✘
	AS18649	Mitel Networks, Inc.	✔	✘
	AS396940	HTH	✔	✘
	AS396936	HTH	✔	✘
	AS30673	Finthrive, Inc.	✔	✘
	AS26351	First Horizon National Corporation	✔	✘
	AS63474	Sirius Computer Solutions, Inc.	✔	✘
	AS22575	Massachusetts Mutual Life Insurance Company	✔	✘
	AS10848	NTT DATA Services, LLC	✔	✘
	AS3828	Cirrus Logic Inc.	✔	✘
	AS400537	Morningstar, Inc.	✔	✘
	AS396290	Nielsen Consumer LLC	✔	✘
	AS14032	Foot Locker Corporate Services, Inc	✔	✔
	AS46696	Sidus Group, LLC	✔	✔
	AS11189	Caliber Home Loans, Inc.	✔	✘
	AS16391	Celito Communications Inc.	✔	✔
	AS60269	XYLEM WATER SOLUTIONS GLOBAL SERVICES AB	✔	✘
	AS53559	KST Networks	✔	✘
	AS398492	Momentive Performance Materials Inc.	✔	✘
	AS17377	Spectra Energy Corporation	✔	✘
	AS393587	Ulta, Inc.	✔	✘
	AS22334	Ferguson Enterprises, LLC	✔	✘
	AS393759	City of Austin, Texas	✔	✘
	AS21945	Harland Clarke Corp.	✔	✘
	AS25765	CQG, Inc.	✔	✘
	AS401985	Family Dollar	✔	✘
	AS20339	Rosenthal & Rosenthal Inc.	✔	✘
	AS10511	CC Services, Inc	✔	✘
	AS40062	Ascend Learning, LLC	✔	✘
	AS30423	Amedisys, Inc.	✔	✘
	AS25907	BRINKER INTERNATIONAL INC	✔	✘
	AS399604	EXL SERVICE.COM, LLC	✔	✘
	AS395268	Insperity Services, L.P.	✔	✘
	AS36328	CalTech Software Systems Inc.	✔	✘
	AS18689	Gwynn Group Inc.	✔	✘
	AS397374	Loan Science	✔	✘
	AS20333	Cloudwave	✔	✘
	AS394122	Debevoise and Plimpton LLP	✔	✘
	AS19787	First Eagle Investment Management LLC	✔	✘
	AS30175	EPICOR	✔	✘
	AS396285	Cincinnati Bell Technology Solutions	✔	✘
	AS53736	Nutanix	✘	✔
	AS23463	Lone Pine Capital LLC	✔	✘
	AS22775	Moore Capital Management	✔	✘
	AS31966	CSAA Insurance Exchange	✔	✘
	AS10723	Meritage Group LP	✔	✘
	AS36607	Association for Computing Machinery, Inc	✔	✘
	AS2723	ENDURANCE REINSURANCE CORPORATION OF AMERICA	✔	✘
	AS33016	Payward, Inc.	✔	✘
	AS46204	McDermott, Will, and Emery	✔	✘
	AS53305	Transdev North America, Inc.	✔	✘
	AS53562	DriveTime	✔	✘
	AS23010	Fried, Frank, Harris, Shriver & Jacobson LLP	✔	✘
	AS22688	Dollar General Corporation	✔	✘
	AS19606	THE NIELSEN COMPANY (US), LLC	✔	✘
	AS21961	JBS USA Holdings	✔	✘
	AS16678	Austin Radiological Association	✔	✘
	AS397768	MedStar Mobile Healthcare	✔	✘
	AS395288	Collin County Community College District	✔	✘
	AS401237	CVR Services, LLC	✔	✘
	AS53542	MERCHANT ESOLUTIONS, INC.	✔	✘
	AS22104	Gelber Group, LLC	✔	✘
	AS46282	Boeing Distribution, Inc.	✔	✘
	AS398409	EyeCare Services Partners Management LLC	✔	✘
	AS397843	EyeCare Services Partners Management LLC	✔	✘
	AS394302	Qualcomm, Inc.	✘	✔
	AS17038	FTD	✔	✘
	AS54775	Ally Financial Inc.	✔	✘
	AS395273	Altafiber	✔	✘
	AS63321	Rent-A-Center Inc.	✔	✘
	AS393961	Farm Bureau Bank	✔	✘
	AS396497	Centre Technologies, Inc.	✔	✘
	AS62659	Q2 Software, Inc.	✔	✘
	AS397325	Data Canopy Colocation, LLC	✔	✘
	AS399319	Superior Plus Corp.	✔	✘
	AS46202	Michaels Stores, Inc.	✔	✘
	AS53396	STRAC	✔	✘

ASHandle:       AS62
OrgID:          CL-260
ASName:         CONE
ASNumber:       62
RegDate:        2012-09-28
Updated:        2018-12-03
Source:         ARIN



OrgID:          CL-260
OrgName:        CyrusOne LLC
CanAllocate:    
Street:         1649 Frankford Rd. West
City:           Carrollton
State/Prov:     TX
Country:        US
PostalCode:     75007
RegDate:        2013-10-08
Updated:        2024-11-25
OrgAdminHandle: NETAD3-ARIN
OrgTechHandle:  NETAD3-ARIN
OrgAbuseHandle: APC22-ARIN
OrgNOCHandle:   NETAD3-ARIN
Source:         ARIN





OrgAdminHandle:       NETAD3-ARIN
OrgAdminName:          netadmin
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        NETAD3-ARIN
OrgTechName:           netadmin
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       APC22-ARIN
OrgAbuseName:         CyrusOne Abuse POC
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         NETAD3-ARIN
OrgNOCName:            netadmin
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-02-17T03:25:10Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RADB	as-databank	190
RADB	as-c1-ipv6	24
ARIN	as62499:as-decix-dfw-rs	163
RADB	as-rr-biz	2106
ARIN	as62499:as-decix-dfw-rs-v6	163
ARIN	as62499:as-decix-dfw-connected	163
RADB	as-c1	206
ARIN	as6128:as-customers	776
LEVEL3	as-lumen-customers-asns	10695