66.128.144.0/23

AS2734 · CoreSite

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Summary

Country	United States
Domain	coresite.com
ASN	AS2734
Registry	ARIN
ID	CORESITE-DIA-66

WHOIS Details

NetHandle:      NET-66-128-144-0-1
OrgID:          COWIL
Parent:         NET-66-0-0-0-0
NetName:        CORESITE-DIA-66
NetRange:       66.128.144.0 - 66.128.159.255
NetType:        allocation
RegDate:        2004-02-26
Updated:        2014-01-09
Source:         ARIN


OrgID:          COWIL
OrgName:        CoreSite
CanAllocate:    
Street:         1001 17th St
Street:         Suite 500
City:           Denver
State/Prov:     CO
Country:        US
PostalCode:     80202
RegDate:        2005-01-14
Updated:        2025-04-09
OrgAdminHandle: JFA116-ARIN
OrgTechHandle:  CMM8-ARIN
OrgTechHandle:  JENSE37-ARIN
OrgTechHandle:  JFA116-ARIN
OrgTechHandle:  REEDC55-ARIN
OrgTechHandle:  STANL503-ARIN
OrgAbuseHandle: CORES5-ARIN
OrgNOCHandle:   CORES4-ARIN
Source:         ARIN


POCHandle:      CMM8-ARIN
IsRole:         N
LastName:       Malayter
FirstName:      Christopher
Street:         1001 17th St
Street:         Suite 500
City:           Denver
State/Prov:     CO
Country:        US
PostalCode:     80202
RegDate:        2007-06-04
Updated:        2024-10-31
OfficePhone:    +1-608-301-5180
Mailbox:        chris.malayter@coresite.com
Source:         ARIN


POCHandle:      JFA116-ARIN
IsRole:         N
LastName:       Favis
FirstName:      Jerome
Street:         624 S Grand Avenue
Street:         Suite Suite 110
City:           Los Angeles
State/Prov:     CA
Country:        US
PostalCode:     90017
RegDate:        2009-03-11
Updated:        2024-04-03
OfficePhone:    +1-213-327-1208
MobilePhone:    +1-213-216-1155
Mailbox:        jerome.favis@coresite.com
Source:         ARIN


POCHandle:      CORES4-ARIN
IsRole:         Y
LastName:       Coresite OSC
FirstName:      
Street:         1001 17th Street, Suite 500
City:           Denver
State/Prov:     CO
Country:        US
PostalCode:     80202
RegDate:        2018-08-29
Updated:        2024-10-31
OfficePhone:    +1-866-777-2673
Mailbox:        osc@coresite.com
Source:         ARIN


POCHandle:      CORES5-ARIN
IsRole:         Y
LastName:       CoreSite Abuse
FirstName:      
Street:         1001 17th Street, Suite 500
City:           Denver
State/Prov:     CO
Country:        US
PostalCode:     80202
RegDate:        2018-08-29
Updated:        2025-10-24
OfficePhone:    +1-866-777-2673
Mailbox:        abuse@coresite.com
Source:         ARIN


POCHandle:      REEDC55-ARIN
IsRole:         N
LastName:       Reed
FirstName:      Christopher
Street:         1001 17th Street, Suite 500
City:           Denver
State/Prov:     CO
Country:        US
PostalCode:     80202
RegDate:        2018-11-16
Updated:        2024-10-24
OfficePhone:    +1-213-327-1203
Mailbox:        chris.reed@coresite.com
Source:         ARIN


POCHandle:      JENSE37-ARIN
IsRole:         N
LastName:       Jensen
FirstName:      John
Street:         12369 Sunrise Valley Drive
City:           Reston
State/Prov:     VA
Country:        US
PostalCode:     20191
RegDate:        2013-02-19
Updated:        2025-01-11
OfficePhone:    +1-571-612-7142
Mailbox:        john.jensen@coresite.com
Source:         ARIN


POCHandle:      STANL503-ARIN
IsRole:         N
LastName:       Stanley
FirstName:      Michael
Street:         12369 Sunrise Valley Drive
City:           Reston
State/Prov:     VA
Country:        US
PostalCode:     20191
RegDate:        2021-12-30
Updated:        2025-04-08
OfficePhone:    +1-202-827-7002
Mailbox:        michael.stanley@coresite.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 66.128.0.0/16

Range	ASN	Company	Num of IPs
66.128.96.0/19	AS20115	Charter Communications LLC	8,192
66.128.160.0/19	AS13576	SDN Communications Inc.	8,192
66.128.48.0/20	AS7819	Global IP Networks INC	4,096
66.128.80.0/20	AS22995	Xplore Inc.	4,096
66.128.0.0/20	AS30666	Xchange Telecom Corp.	4,096
66.128.208.0/20	AS32022	Children's Hospital Colorado	4,096
66.128.224.0/20	AS3561	CenturyLink Communications, LLC	4,096
66.128.64.0/20	AS3561	CenturyLink Communications, LLC	4,096
66.128.240.0/20	AS40237	United Telephone Company	4,096
66.128.128.0/20	AS54665	Trailwave Fiber, Inc.	4,096
66.128.162.0/23	AS15204	ITC Telecom	512
66.128.184.0/23	AS15204	ITC Telecom	512
66.128.166.0/23	AS13576	Midstate communications	512
66.128.164.0/23	AS15204	ITC Telecom	512
66.128.161.0/24	AS18785	Santel Communications Cooperative, Inc.	256
66.128.171.0/24	AS13576	Valley Telecommunications	256
66.128.189.0/24	AS395037	MNL-8	256
66.128.178.0/24	AS398112	Poet	256
66.128.177.0/24	AS398176	JDS Industries	256
66.128.188.0/24	AS14675	PLAINS COMMERCE BANK	256
66.128.181.0/24	AS46566	CAPITAL SERVICES	256
66.128.173.0/24	AS13576	Valley Telephone Company	256
66.128.174.0/24	AS13576	B-Y Internet, LLC	256
66.128.175.0/24	AS13576	Midstate communications	256
66.128.176.0/24	AS13576	COMMUNITY INTERNET SERVICE	256
66.128.182.0/24	AS15204	ITC Telecom	256
66.128.183.0/24	AS15204	ITC Telecom	256
66.128.179.0/24	AS13576	SDN-BCKB	256

Hosted domains

There are 3 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
66.128.145.167	unifinemail.com	1
66.128.145.85	ccsins.com	1
66.128.145.165	uoffer.ai	1

Hosted domains API

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Pingable IPs

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

IP Address	ASN	Details
66.128.144.37	AS2734 CoreSite	`0.20ms` from Chicago, US
66.128.145.164	AS2734 CoreSite	`0.24ms` from Chicago, 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
51.15.41.199	AS12876 SCALEWAY S.A.S.	`0.34ms` from Amsterdam, NL
118.209.12.167	AS7545 TPG Telecom Limited	`1.66ms` from Brisbane, AU
81.164.75.151	AS6848 Telenet BV	`6.23ms` from Brussels, BE
99.28.9.55	AS7018 AT&T Enterprises, LLC	`10.30ms` from Chicago, US
67.184.37.183	AS7922 Comcast Cable Communications, LLC	`6.54ms` from Chicago, US
98.212.81.215	AS7922 Comcast Cable Communications, LLC	`11.90ms` from Chicago, US
186.225.93.167	AS28257 CONCEITOS NET SERVICOS DE COMUNICACAO E MULTIMIDIA	`4.49ms` from Fortaleza, BR
91.32.31.7	AS3320 Deutsche Telekom AG	`6.35ms` from Frankfurt am Main, DE
109.182.147.23	AS5603 Telekom Slovenije, d.d.	`0.97ms` from Ljubljana, SI
90.73.31.247	AS3215 Orange S.A.	`5.02ms` from Marseille, FR
87.187.112.55	AS3320 Deutsche Telekom AG	`6.51ms` from Nuernberg, DE
201.37.64.119	AS28573 Claro NXT Telecomunicacoes Ltda	`8.88ms` from Porto Alegre, BR
76.211.176.183	AS7018 AT&T Enterprises, LLC	`4.58ms` from San Antonio, US
191.5.100.215	AS263535 REDE GLOBAL TECNOLOGIA LTDA ME	`5.98ms` from Sao Paulo, BR
183.124.213.231	AS4766 Korea Telecom	`7.47ms` from Seoul, KR
54.251.127.39	AS16509 Amazon.com, Inc.	`0.10ms` from Singapore, SG
90.233.9.119	AS3301 Telia Company AB	`18.57ms` from Stockholm, SE
155.143.84.119	AS135887 Belong (Telstra Limited)	`4.05ms` from Sydney, AU
177.201.6.247	AS8167 V tal	`0.81ms` from Brasilia, BR
199.218.230.39	AS600 OARnet	`2.51ms` from Columbus, US
182.73.94.247	AS9498 BHARTI Airtel Ltd.	`0.94ms` from Delhi, IN
14.199.191.167	AS9269 Hong Kong Broadband Network Ltd.	`0.90ms` from Hong Kong, HK
185.235.218.23	AS202302 NETH LLC	`0.70ms` from Kyiv, UA
84.69.92.71	AS5378 Vodafone Limited	`16.23ms` from London, GB
84.79.188.135	AS12479 Orange Espagne SA	`6.07ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -f7 66.128.144.25

traceroute to 66.128.144.25 (66.128.144.25): 64 hops max, 52 byte packets

7 [AS2734] 66.128.144.25 17.799 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On October 30th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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