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:        netguard@gtt.net
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:        abuse@gtt.net
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:        noc@gtt.net
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:        alexander.mutafchiyski@gtt.net
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:        netguard@gtt.net
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 488 domain names hosted across 66 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.net 3
66.17.189.97 whatcanwelearn.com 3
66.17.172.36 minutecheck.com 2
66.17.150.154 yorke-peninsula.com 1
66.17.198.184 dakotabalance.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

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

IP Address ASN Details
66.17.255.6 AS32256 CYBERLINK USA 0.22ms from Dallas, US
66.17.189.218 AS3257 GTT Communications Inc. 0.45ms from Chicago, US
66.17.185.142 AS15238 Gates Foundation 0.30ms from Seattle, US
66.17.221.7 AS15238 Gates Foundation 0.30ms from Seattle, US
66.17.190.25 AS3257 GTT Communications Inc. 0.41ms from Chicago, US
66.17.142.250 AS17352 Application X 3.28ms from New York City, US
66.17.140.3 AS199527 UAB Bite Lietuva 45.99ms from Bucharest, RO
66.17.128.19 AS32256 CYBERLINK USA 0.17ms from Dallas, US
66.17.143.3 AS199527 UAB Bite Lietuva 46.06ms from Bucharest, RO
66.17.141.61 AS23029 E Street 1.49ms from Denver, US
66.17.156.199 AS199527 UAB Bite Lietuva 194.70ms from Morris Plains, US
66.17.186.65 AS3257 GTT Communications Inc. 0.27ms from Chicago, US
66.17.212.38 AS3257 GTT Communications Inc. 0.30ms from New York City, 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
94.215.18.1 AS33915 Vodafone Libertel B.V. 1.50ms from Amsterdam, NL
128.63.198.49 AS13 Headquarters, USAISC 2.65ms from Ashburn, US
99.144.84.81 AS7018 AT&T Enterprises, LLC 16.65ms from Atlanta, US
110.171.206.1 AS17552 True Online 0.83ms from Bangkok, TH
125.25.167.1 AS23969 TOT Public Company Limited 1.89ms from Bangkok, TH
149.56.187.81 AS16276 OVH SAS 0.16ms from Beauharnois, CA
122.11.46.129 AS23724 IDC, China Telecommunications Corporation 3.40ms from Beijing, CN
221.193.78.1 AS4837 CHINA UNICOM China169 Backbone 7.62ms from Beijing, CN
38.188.71.1 AS138754 Kerala Vision Broad Band Private Limited 10.02ms from Bengaluru, IN
92.84.251.1 AS9050 Orange Romania S.A. 4.60ms from Bucharest, RO
46.107.229.241 AS58098 Szatmarnet Bt. 6.38ms from Budapest, HU
152.169.81.1 AS7303 Telecom Argentina S.A. 16.60ms from Buenos Aires, AR
41.233.68.1 AS8452 TE-AS 1.47ms from Cairo, EG
81.10.91.1 AS8452 TE-AS 4.34ms from Cairo, EG
180.181.126.1 AS11492 CABLE ONE, INC. 9.86ms from Chicago, US
24.117.126.1 AS11492 CABLE ONE, INC. 13.35ms from Chicago, US
66.188.63.1 AS20115 Charter Communications LLC 13.87ms from Chicago, US
184.60.208.1 AS4181 TDS TELECOM 6.10ms from Chicago, US
70.123.184.1 AS11427 Charter Communications Inc 2.13ms from Dallas, US
216.10.35.177 AS13793 T3 VoiceNet, LLC. 12.90ms from Dallas, US
216.250.158.49 AS36443 Aunalytics, Inc 4.69ms from Detroit, US
51.183.47.17 AS5607 Sky UK Limited 1.84ms from Dublin, IE
92.72.198.1 AS3209 Vodafone GmbH 0.84ms from Duesseldorf, DE
222.78.232.1 AS4134 CHINANET-BACKBONE 6.19ms from Fuzhou, CN
12.185.243.193 AS7018 AT&T Enterprises, LLC 1.88ms from Houston, US

Traceroute

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

$
traceroute -a -n -q1 -f5 66.17.189.217
traceroute to 66.17.189.217 (66.17.189.217): 64 hops max, 52 byte packets
5 [AS3257] 173.205.47.57 70.295 ms
6 [AS3257] 89.149.143.93 95.933 ms
7 [AS3257] 66.17.189.217 127.66 ms
Measurement taken from IPinfo ProbeNet in Lima, PE
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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