1. All IP Ranges
  2. 66.0.0.0/8
  3. 66.17.0.0/16
  4. AS3257  | 66.17.128.0/17

66.17.128.0/17

AS3257  ·  GTT Communications Inc.

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Summary

Country United States
Domain gtt.net
ASN AS3257
Registry ARIN
ID RGS-BLK6

WHOIS Details

NetHandle:      NET-66-17-128-0-1
OrgID:          GAL-104
Parent:         NET-66-0-0-0-0
NetName:        RGS-BLK6
NetRange:       66.17.128.0 - 66.17.255.255
NetType:        allocation
RegDate:        2002-11-18
Updated:        2025-05-07
Source:         ARIN


OrgID:          GAL-104
OrgName:        GTT Americas, LLC
CanAllocate:    
Street:         4201 Wilson Blvd -Suite 504
City:           Arlington
State/Prov:     VA
Country:        US
PostalCode:     22203
RegDate:        2025-02-11
Updated:        2025-07-08
OrgAdminHandle: AS3251-ARIN
OrgTechHandle:  AS3251-ARIN
OrgTechHandle:  GIT5-ARIN
OrgTechHandle:  GLD5-ARIN
OrgAbuseHandle: GAD46-ARIN
OrgNOCHandle:   GNOC16-ARIN
Source:         ARIN


POCHandle:      AS3251-ARIN
IsRole:         Y
LastName:       AS3257 Netguard
FirstName:      
Street:         Frankfurter Strasse 227
City:           Neu-Isenburg
State/Prov:     
Country:        DE
PostalCode:     63263
RegDate:        2009-07-03
Updated:        2026-01-28
OfficePhone:    +49 69 48007422
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      GLD5-ARIN
IsRole:         Y
LastName:       GTT Legal Departement
FirstName:      
Street:         GTT Bulgaria LTD
Street:         115G Tsarigradsko shose Blvd. 
Street:         Office Building Megapark,Fl.1
City:           Sofia
State/Prov:     Sofia-grad
Country:        BG
PostalCode:     1784
RegDate:        2025-01-31
Updated:        2026-01-30
OfficePhone:    +359886606
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      GAD46-ARIN
IsRole:         Y
LastName:       GTT Abuse Department
FirstName:      
Street:         4201 Wilson Blvd.
Street:         Suite 504 North Tower
City:           Arlington
State/Prov:     VA
Country:        US
PostalCode:     22203
RegDate:        2014-04-16
Updated:        2025-07-09
OfficePhone:    +1-703-442-5500
FaxPhone:       +1-703-442-5501
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      GIT5-ARIN
IsRole:         Y
LastName:       GTT IPAM Team
FirstName:      
Street:         4201 Wilson Blvd.
Street:         Suite 504 North Tower
City:           Arlington
State/Prov:     VA
Country:        US
PostalCode:     22203
RegDate:        2025-02-17
Updated:        2025-07-09
OfficePhone:    +1-703-442-5500
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      GNOC16-ARIN
IsRole:         Y
LastName:       GTT Network Operations Center
FirstName:      
Street:         4201 Wilson Blvd.
Street:         Suite 504 North Tower
City:           Arlington
State/Prov:     VA
Country:        US
PostalCode:     22203
RegDate:        2014-04-16
Updated:        2025-07-09
OfficePhone:    +1-703-442-5500
Mailbox:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 66.17.128.0/17

Range ASN Company Num of IPs
66.17.185.0/24 AS15238 Bill & Melinda Gates Foundation 256
66.17.221.0/24 AS15238 Bill & Melinda Gates Foundation 256
66.17.142.0/24 AS17352 Freeze Frame Graphics 256
66.17.140.0/24 AS199527 BITE-HRS 256
66.17.143.0/24 AS199527 BITE-HRS 256
66.17.156.0/24 AS199527 BITE-HRS 256
66.17.220.0/24 AS199527 BITE-HRS 256
66.17.254.0/24 AS199527 BITE-HRS 256
66.17.141.0/24 AS23029 E Street Communications 256
66.17.128.0/24 AS32256 Cyberlink USA 256
66.17.255.0/24 AS32256 Cyberlink USA 256
66.17.252.0/23 AS199527 BITE-HRS 512
66.17.158.0/23 AS199527 BITE-HRS 512
66.17.214.0/23 AS199527 BITE-HRS 512
66.17.130.0/23 AS199527 BITE-HRS 512
66.17.222.0/23 AS199527 BITE-HRS 512
66.17.144.0/22 AS6079 BITE 1,024
66.17.132.0/22 AS199527 BITE-HRS 1,024
66.17.136.0/22 AS199527 BITE-HRS 1,024
66.17.216.0/22 AS6079 Bite-HRS 1,024

Nearby Ranges

BGP prefixes that overlap with 66.17.0.0/16

Range ASN Company Num of IPs
66.17.96.0/19 AS26860 SWIFTEL COMMUNICATIONS 8,192
66.17.80.0/20 AS3257 Sparkplug Southwest, LLC. 4,096
66.17.72.0/21 AS4637 IPNetZone 2,048
66.17.64.0/21 AS3257 GTT Communications Inc. 2,048
66.17.132.0/22 AS199527 BITE-HRS 1,024
66.17.216.0/22 AS6079 Bite-HRS 1,024
66.17.144.0/22 AS6079 BITE 1,024
66.17.136.0/22 AS199527 BITE-HRS 1,024
66.17.222.0/23 AS199527 BITE-HRS 512
66.17.130.0/23 AS199527 BITE-HRS 512
66.17.158.0/23 AS199527 BITE-HRS 512
66.17.214.0/23 AS199527 BITE-HRS 512
66.17.252.0/23 AS199527 BITE-HRS 512
66.17.254.0/24 AS199527 BITE-HRS 256
66.17.141.0/24 AS23029 E Street Communications 256
66.17.185.0/24 AS15238 Bill & Melinda Gates Foundation 256
66.17.128.0/24 AS32256 Cyberlink USA 256
66.17.255.0/24 AS32256 Cyberlink USA 256
66.17.220.0/24 AS199527 BITE-HRS 256
66.17.156.0/24 AS199527 BITE-HRS 256
66.17.143.0/24 AS199527 BITE-HRS 256
66.17.93.0/24 AS35985 Aerodata Inc 256
66.17.140.0/24 AS199527 BITE-HRS 256
66.17.142.0/24 AS17352 Freeze Frame Graphics 256
66.17.221.0/24 AS15238 Bill & Melinda Gates Foundation 256

Hosted domains

There are 497 domain names hosted across 67 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
66.17.148.17 thenewamericanstory.com 3
66.17.189.97 whatcanwelearn.com 3
66.17.172.36 alertagroup.com 2
66.17.198.184 dakotabalance.com 1
66.17.150.154 yorke-peninsula.com 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
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Pingable IPs

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

IP Address ASN Details
66.17.141.61 AS23029 E Street 1.51ms from Denver, US
66.17.142.250 AS17352 Application X 3.28ms from New York City, US
66.17.140.3 AS199527 UAB "Bite Lietuva" 45.98ms from Bucharest, RO
66.17.128.11 AS32256 CYBERLINK USA 0.21ms from Dallas, US
66.17.143.2 AS199527 UAB "Bite Lietuva" 46.18ms from Bucharest, RO
66.17.190.25 AS3257 GTT Communications Inc. 0.48ms from Chicago, US
66.17.212.170 AS3257 GTT Communications Inc. 0.24ms from New York City, US
66.17.221.7 AS15238 Gates Foundation 0.32ms from Seattle, US
66.17.189.218 AS3257 GTT Communications Inc. 0.46ms from Chicago, US
66.17.185.39 AS15238 Gates Foundation 0.29ms from Seattle, US
66.17.156.155 AS199527 UAB "Bite Lietuva" 194.75ms from Morris Plains, US
66.17.255.4 AS32256 CYBERLINK USA 0.21ms from Dallas, US
66.17.186.65 AS3257 GTT Communications Inc. 0.27ms 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
24.132.36.1 AS33915 Vodafone Libertel B.V. 3.99ms from Amsterdam, NL
217.123.142.1 AS33915 Vodafone Libertel B.V. 5.72ms from Amsterdam, NL
84.104.44.1 AS33915 Vodafone Libertel B.V. 0.68ms from Amsterdam, NL
37.205.5.1 AS211225 Ecozum Bilgi Teknolojileri A.S 4.50ms from Ankara, TR
98.187.237.81 AS22773 Cox Communications Inc. 0.89ms from Ashburn, US
70.21.46.1 AS701 Verizon Business 2.70ms from Ashburn, US
116.115.76.1 AS139007 UNICOM InnerMongolia province network 14.17ms from Beijing, CN
92.206.34.161 AS50436 Tele Columbus AG 10.29ms from Berlin, DE
184.179.56.129 AS22773 Cox Communications Inc. 2.73ms from Boston, US
109.233.104.97 AS48408 Localitel bvba 0.34ms from Brussels, BE
181.230.171.1 AS7303 Telecom Argentina S.A. 16.63ms from Buenos Aires, AR
88.255.103.97 AS9121 Turk Telekomunikasyon Anonim Sirketi 0.56ms from Bursa, TR
9.134.64.1 AS19901 Brightspeed 16.60ms from Chicago, US
3.12.254.49 AS16509 Amazon.com, Inc. 0.15ms from Columbus, US
181.28.8.1 AS7303 Telecom Argentina S.A. 0.69ms from Cordoba, AR
24.254.54.1 AS22773 Cox Communications Inc. 10.64ms from Dallas, US
12.203.206.17 AS7018 AT&T Enterprises, LLC 10.15ms from Dallas, US
67.148.118.145 AS209 CenturyLink Communications, LLC 1.49ms from Denver, US
63.211.236.33 AS3356 Level 3 Parent, LLC 0.38ms from Denver, US
71.253.118.1 AS701 Verizon Business 16.01ms from Detroit, US
105.187.40.1 AS37457 Telkom SA Ltd. 2.21ms from Durban, ZA
184.70.187.17 AS6327 Shaw Communications 0.62ms from Edmonton, CA
89.206.2.1 AS29649 Limes sp. z o.o. 0.65ms from Gdansk, PL
58.253.211.1 AS17816 China Unicom IP network China169 Guangdong province 4.00ms from Guangzhou, CN
183.239.193.113 AS9808 China Mobile Communications Group Co., Ltd. 10.95ms from Guangzhou, CN

Traceroute

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

$
traceroute -a -n -q1 -m6 66.17.204.191
traceroute to 66.17.204.191 (66.17.204.191): 6 hops max, 52 byte packets
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Stockholm, SE
On

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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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