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AS2734 – CoreSite

Field	Value
Country	United States
Website	coresite.com
Hosted domains	573
IPv4 addresses	49,664
IPv6 addresses	133,708,404,575,197,601,762,800,000,000
ASN type	Hosting
Registry	arin
Allocated	17 years ago on Sep 01, 2009
Updated	14 years ago on Mar 02, 2012

Netblock	Company	Num of IPs
142.255.192.0/18	CoreSite	16,384
66.35.72.0/21	CoreSite	2,048
66.35.88.0/21	CoreSite	2,048
208.77.96.0/21	CoreSite	2,048
208.84.144.0/21	CoreSite	2,048
66.35.68.0/22	Managed Hosting Services	1,024
66.128.148.0/22	CoreSite	1,024
66.128.156.0/22	CoreSite	1,024
98.158.144.0/22	U.S. COLO, LLC	1,024
98.158.152.0/22	U.S. COLO, LLC	1,024
199.119.180.0/22	CoreSite	1,024
204.9.200.0/22	U.S. COLO, LLC	1,024
208.74.72.0/22	U.S. COLO, LLC	1,024
66.35.64.0/23	CoreSite	512
66.35.84.0/23	CoreSite	512
66.128.144.0/23	CoreSite	512
66.128.152.0/23	Private Customer	512
67.212.144.0/23	CoreSite	512
67.212.146.0/23	CoreSite	512
67.212.148.0/23	CoreSite	512
67.212.156.0/23	CoreSite	512
67.212.158.0/23	CoreSite	512
98.158.144.0/23	U.S. COLO, LLC	512
98.158.150.0/23	U.S. COLO, LLC	512
98.158.158.0/23	U.S. COLO, LLC	512
192.34.20.0/23	U.S. COLO, LLC	512
192.34.22.0/23	U.S. COLO, LLC	512
199.197.10.0/23	U.S. COLO, LLC	512
208.64.252.0/23	U.S. COLO, LLC	512
208.64.254.0/23	U.S. COLO, LLC	512
208.74.76.0/23	U.S. COLO, LLC	512
208.74.78.0/23	U.S. COLO, LLC	512
66.35.66.0/24	CoreSite	256
66.35.67.0/24	CoreSite	256
66.35.80.0/24	CoreSite	256
66.35.83.0/24	CoreSite	256
66.35.86.0/24	CoreSite	256
66.35.87.0/24	CoreSite	256
66.128.146.0/24	Private Customer	256
66.128.147.0/24	CoreSite	256
66.128.154.0/24	Private Customer	256
66.128.155.0/24	Private Customer	256
67.212.150.0/24	Private Customer	256
67.212.151.0/24	Private Customer	256
67.212.152.0/24	Private Customer	256
67.212.153.0/24	CoreSite	256
67.212.154.0/24	CoreSite	256
67.212.155.0/24	Private Customer	256
98.158.148.0/24	U.S. COLO, LLC	256
98.158.156.0/24	U.S. COLO, LLC	256
98.158.157.0/24	U.S. COLO, LLC	256
162.216.127.0/24	Gaggle	256
173.45.170.0/24	CoreSite	256
173.45.174.0/24	CoreSite	256
173.45.175.0/24	CoreSite	256
192.150.41.0/24	U.S. COLO, LLC	256
204.9.204.0/24	U.S. COLO, LLC	256
204.9.207.0/24	U.S. COLO, LLC	256
206.223.143.0/24	CoreSite	256
208.64.248.0/24	U.S. COLO, LLC	256
208.64.251.0/24	U.S. COLO, LLC	256
208.78.157.0/24	U.S. COLO, LLC	256

Netblock	Company
2607:2f80::/32	U.S. COLO, LLC
2604:3fc0:2000::/36	CoreSite
2604:3fc0:3000::/36	CoreSite
2605:6c00:1000::/36	CoreSite
2605:6c00:2000::/36	CoreSite
2605:6c00:3000::/36	CoreSite
2605:6c00:4000::/36	CoreSite
2605:6c00:5000::/36	CoreSite
2605:6c00:6000::/36	CoreSite
2605:6c00:7000::/36	CoreSite
2605:6c00:8000::/36	CoreSite
2605:6c00:a000::/36	CoreSite
2605:6c00::/48	CoreSite
2605:6c00:1::/48	CoreSite
2605:6c00:2::/48	CoreSite
2605:6c00:3::/48	CoreSite
2605:6c00:4::/48	CoreSite
2605:6c00:5::/48	CoreSite
2605:6c00:6::/48	CoreSite
2605:6c00:7::/48	CoreSite
2605:6c00:8::/48	CoreSite

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WHOIS Details

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                                                ASHandle:       AS2734
                                                OrgID:          AS2734
                                                ASName:         AS2734
                                                ASNumber:       AS2734
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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IP WHOIS API & Database

Hosted Domains

There are 573 domain names hosted across 216 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
208.64.255.88	██████████	58
98.158.155.198	██████████	44
66.35.67.136	██████████	34
66.35.67.135	██████████	24
208.77.100.6	██████████	23
66.128.157.174	████████	15
66.35.72.207	██████████	14
67.212.154.72	██████████	13
199.119.182.41	██████████	12
98.158.147.132	██████████	8

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Hosted Domains API & Database

Peers

There are 599 peers for this ASN.

Peers	Name
AS10111	Zeofast Network
AS10158	Kakao Corp
AS10242	US Internet Corp
AS10255	Sinister and Solitary
AS10269	Belize Telemedia Limited
AS10302	SNAPPYDSL.NET
AS1031	PEER 1031 LLC
AS10310	Yahoo Holdings Inc.
AS10355	Digital Service Consultants
AS10367	Fibercast Corporation
AS10490	Georgia Institute of Technology
AS10578	Harvard University
AS10674	Gainesville Regional Utilities
AS10835	Visionary Communications LLC
AS11019	HAProxy Technologies, Inc.
AS11029	NetVata, LLC
AS11071	InfoWest
AS11096	FloridaNet
AS11123	Ultimate Internet Access, Inc
AS112	DNS-OARC
AS11232	Midcontinent Communications
AS11280	SNAPPYDSL.NET
AS11320	LightEdge Solutions
AS11333	CyberTrails
AS11525	Hancock Rural Telephone Corp.
AS11686	Zayo Bandwidth
AS11711	TULAROSA COMMUNICATIONS, INC.
AS11722	Slic Network Solutions, Inc
AS11758	IRIS Networks
AS11767	Quality Technology Services, LLC
AS11796	Airstream Communications, LLC
AS11979	Bluegrass Network LLC
AS12041	Afilias, Inc.
AS12131	Vertical Computers
AS12161	dao Consulting, LLC
AS12200	Rackspace Hosting
AS12213	Centersquare
AS12243	Waddell Solutions Group LLC
AS12276	San Francisco Metropolitan Internet Exchange (SFMIX)
AS12684	SES ASTRA S.A.
AS13030	Init7 (Switzerland) Ltd.
AS13150	CATO NETWORKS LTD
AS131958	Tama Cable Network Co.,Ltd.
AS13213	THG HOSTING LIMITED
AS13335	Cloudflare, Inc.
AS13415	FirstDigital Communications, LLC
AS134176	Cloudie Limited
AS13427	Softcom Internet Communications, Inc.
AS134521	Dialpad, Inc.
AS13489	UNE EPM TELECOMUNICACIONES S.A.
AS135069	Feenix Communications Limited
AS1351	University of Vermont
AS13536	FirstLight Networks, LLC
AS13631	CITADEL ENTERPRISE AMERICAS LLC
AS137182	BLUE WIRELESS PTE LTD
AS13727	NEXT DIMENSION INC
AS137409	GSL Networks Pty LTD
AS13760	Uniti Fiber Holdings Inc.
AS13767	DataBank Holdings, Ltd.
AS13786	Seabras 1 USA, LLC
AS13807	Great Plains Communications LLC
AS138398	Prodigi Technology Services Limited
AS13855	The Municipal Communications Utility of the City of Cedar Falls, Iowa
AS13876	FiberLight, LLC
AS138997	Eons Data Communications Limited
AS139341	ACE
AS13984	SD Data Center
AS14016	Capcon Networks
AS14041	University Corporation for Atmospheric Research
AS14061	DigitalOcean, LLC
AS140627	OneQode
AS141039	PacketHub S.A.
AS142111	Zhejiang Aiyun Network Technology Co Ltd
AS14230	ARK Data Centers LLC
AS142601	TILLERED LIMITED
AS14277	GiGstreem
AS14340	Salesforce.com, Inc.
AS14361	HopOne Internet Corporation
AS14363	MTC Communications, Inc.
AS14537	Continent 8 LLC
AS14585	CIFNet, Inc.
AS14593	Space Exploration Technologies Corporation
AS14615	Comporium, Inc
AS14773	Lancaster Lebanon Intermediate Unit 13
AS148968	Falcore Investments Pty Ltd
AS14907	Wikimedia Foundation Inc.
AS14978	Consolidated Smart Systems LLC
AS14979	Aeronet Wireless
AS15042	Urban Communications, Inc.
AS15129	Geneseo Telephone Company
AS15164	Unite Private Networks LLC.
AS15169	Google LLC
AS15188	Menlo, Inc.
AS15280	Host Leasing Corporation
AS15305	Syringa Networks, LLC
AS153371	BACK WAVES LIMITED
AS1547	INTERDNESTRKOM, Sovmestnoe Zakrytoe Aktsionernoe Obshchestvo
AS15695	Expereo International BV
AS16164	Sohonet Limited
AS16276	OVH SAS

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ASN API & Database

Upstreams

There are 4 upstreams for this ASN.

upstreams	Name
AS27552	TowardEX Technologies International, Inc.
AS2914	NTT America, Inc.
AS3257	GTT Communications Inc.
AS6939	Hurricane Electric LLC

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ASN API & Database

Downstreams

There are 20 downstreams for this ASN.

Downstreams	Name
AS10255	Sinister and Solitary
AS11333	CyberTrails
AS20304	Lepton Global Solutions, LLC.
AS22330	Catalina Marketing Corporation
AS22437	CoreSite
AS26551	Sargent & Lundy Engineers
AS2914	NTT America, Inc.
AS29906	Westat, Inc.
AS30149	The Goldman Sachs Group, Inc.
AS3257	GTT Communications Inc.
AS393827	BJS WHOLESALE CLUB
AS397822	California Resources Corporation
AS398079	Eminent, Inc
AS401174	State of California, Department of Technology
AS46275	AcuCall
AS4898	Opentable, Inc.
AS54525	APPLIED GLOBAL TECHNOLOGIES, LLC
AS5651	GMLL CAPITAL MANAGEMENT LLC
AS62966	BrightEdge Technologies
AS6939	Hurricane Electric LLC

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ASN API & Database

Pingable IPs

101 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
2605:6c00:7000:58::151	AS2734 CoreSite	`0.17ms` from Ashburn, US
66.128.153.249	AS2734 CoreSite	`1.15ms` from Boston, US
208.74.79.94	AS2734 CoreSite	`0.24ms` from Los Angeles, US
66.35.80.228	AS2734 CoreSite	`4.53ms` from Jacksonville, US
208.64.253.203	AS2734 CoreSite	`0.25ms` from Los Angeles, US
67.212.155.233	AS2734 CoreSite	`0.26ms` from Los Angeles, US
208.74.77.9	AS2734 CoreSite	`0.90ms` from New York City, US
67.212.159.20	AS2734 CoreSite	`0.40ms` from New York City, US
192.34.21.152	AS2734 CoreSite	`0.27ms` from Santa Clara, US
67.212.156.245	AS2734 CoreSite	`0.13ms` from Ashburn, US
98.158.152.213	AS2734 CoreSite	`0.12ms` from Ashburn, US
66.35.86.194	AS2734 CoreSite	`0.83ms` from Atlanta, US
66.35.83.249	AS2734 CoreSite	`0.78ms` from Atlanta, US
192.34.22.220	AS2734 CoreSite	`0.28ms` from Chicago, US
67.212.151.180	AS2734 CoreSite	`0.18ms` from Denver, US
66.35.71.36	AS2734 CoreSite	`4.54ms` from Jacksonville, US
66.128.148.53	AS2734 CoreSite	`0.50ms` from Santa Clara, US
98.158.150.4	AS2734 CoreSite	`0.39ms` from Chicago, US
67.212.158.37	AS2734 CoreSite	`0.61ms` from New York City, US
66.128.147.108	AS2734 CoreSite	`0.17ms` from Denver, US
66.35.73.1	AS2734 CoreSite	`4.52ms` from Jacksonville, US
67.212.152.117	AS2734 CoreSite	`0.13ms` from Ashburn, US
98.158.159.81	AS2734 CoreSite	`0.13ms` from Ashburn, US
173.45.175.69	AS2734 CoreSite	`4.53ms` from Jacksonville, US
66.35.75.26	AS2734 CoreSite	`4.55ms` from Jacksonville, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
73.137.146.158	AS7922 Comcast Cable Communications, LLC	`5.32ms` from Atlanta, US
172.193.51.78	AS8075 Microsoft Corporation	`0.23ms` from Boydton, US
186.177.197.254	AS263181 Cooperativa Telefónica de Grand Bourg	`1.24ms` from Buenos Aires, AR
187.155.59.158	AS8151 UNINET	`12.63ms` from Cancún, MX
68.203.149.94	AS11427 Charter Communications Inc	`5.84ms` from Dallas, US
50.200.213.206	AS7922 Comcast Cable Communications, LLC	`2.76ms` from Denver, US
77.176.49.222	AS6805 Telefonica Germany GmbH & Co.OHG	`3.61ms` from Duesseldorf, DE
221.167.247.254	AS4766 Korea Telecom	`1.53ms` from Incheon, KR
218.158.253.190	AS4766 Korea Telecom	`4.62ms` from Incheon, KR
86.12.139.142	AS5089 Virgin Media Limited	`2.78ms` from London, GB
90.203.37.14	AS5607 Sky UK Limited	`5.49ms` from London, GB
71.208.151.254	AS209 CenturyLink Communications, LLC	`3.32ms` from Miami, US
212.157.131.254	AS702 Verizon Business	`1.48ms` from Paris, FR
216.161.88.254	AS209 CenturyLink Communications, LLC	`0.63ms` from Portland, US
112.245.227.110	AS4837 CHINA UNICOM China169 Backbone	`6.75ms` from Qingdao, CN
3.223.220.238	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
211.168.39.126	AS3786 LG DACOM Corporation	`1.78ms` from Seoul, KR
115.5.98.126	AS4766 Korea Telecom	`2.30ms` from Seoul, KR
87.224.214.94	AS12389 PJSC Rostelecom	`1.00ms` from Yekaterinburg, RU
130.37.38.94	AS1103 SURF B.V.	`3.92ms` from Amsterdam, NL
192.99.74.254	AS16276 OVH SAS	`0.11ms` from Beauharnois, CA
173.9.95.222	AS7922 Comcast Cable Communications, LLC	`5.98ms` from Boston, US
20.110.154.30	AS8075 Microsoft Corporation	`0.24ms` from Boydton, US
197.48.138.126	AS8452 TE-AS	`8.39ms` from Cairo, EG
3.168.43.30	AS16509 Amazon.com, Inc.	`0.82ms` from Chicago, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f3 199.119.182.131

traceroute to 199.119.182.131 (199.119.182.131): 64 hops max, 52 byte packets

3 [AS6939] 184.104.199.170 5.623 ms

4 [AS2734] 199.119.182.131 5.175 ms

Measurement taken from

IPinfo ProbeNet in Jacksonville, US

On May 4th 2026

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS2734 at robtex.

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