195.21.0.0/17

AS3257 · GTT Communications Inc.

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	United Kingdom
Domain	gtt.net
ASN	AS3257
Registry	RIPE
ID	US-GTTCOMMUNICATIONS-19961101

WHOIS Details

inetnum:        195.21.0.0 - 195.21.255.255
netname:        US-GTTCOMMUNICATIONS-19961101
country:        GB
geofeed:        https://geolocation.gtt.net/gtt_geolocation.csv
remarks:        Geofeed https://geolocation.gtt.net/gtt_geolocation.csv
org:            ORG-GCI2-RIPE
admin-c:        NET3257-RIPE
tech-c:         NET3257-RIPE
status:         ALLOCATED PA
mnt-by:         AS3257-NET-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-lower:      AS3257-IPAM-MNT
mnt-domains:    AS3257-IPAM-MNT
mnt-routes:     AS3257-IPAM-MNT
created:        2021-03-22T11:12:53Z
last-modified:  2025-07-07T13:42:12Z
source:         RIPE
abuse-email:    abuse@gtt.net
abuse-c:        AR37017-RIPE
abuse-org:      ORG-GCI2-RIPE

organisation:   ORG-GCI2-RIPE
org-name:       GTT Communications Inc.
country:        US
org-type:       LIR
address:        Frankfurter Strasse 227
address:        63263
address:        Neu-Isenburg
address:        GERMANY
phone:          +1 703 442 5500
e-mail:         noc@gtt.net
admin-c:        TK333-RIPE
tech-c:         TK333-RIPE
tech-c:         DS15504-RIPE
tech-c:         NN3489-RIPE
tech-c:         AV13497-RIPE
tech-c:         AV13497-RIPE
tech-c:         FP1849-RIPE
abuse-c:        AR37017-RIPE
mnt-ref:        AS3257-ROOT-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS3257-ROOT-MNT
created:        2016-07-19T07:50:40Z
last-modified:  2024-12-05T12:02:33Z
source:         RIPE
abuse-email:    abuse@gtt.net
abuse-c:        AR37017-RIPE
abuse-org:      undefined

role:           AS3257 Net Admin
address:        GTT
address:        Frankfurter Strasse 227
address:        63263 Neu-Isenburg
address:        Germany
phone:          +49 69 48007422
e-mail:         netguard@gtt.net
remarks:        Information: http://www.gtt.net
remarks:        Concerning abuse and spam ... mailto: abuse@gtt.net
abuse-mailbox:  abuse@gtt.net
admin-c:        SE33-RIPE
tech-c:         TK333-RIPE
nic-hdl:        NET3257-RIPE
remarks:        hostmaster role account
notify:         netguard@gtt.net
mnt-by:         AS3257-PERS-MNT
created:        2009-07-06T08:22:53Z
last-modified:  2024-12-05T11:55:55Z
source:         RIPE

route:          195.21.0.0/17
descr:          GTT
origin:         AS3257
mnt-by:         AS3257-ROUTE-MNT
mnt-lower:      AS3257-ROUTE-MNT
mnt-routes:     AS3257-IPAM-MNT
created:        2019-11-06T11:11:22Z
last-modified:  2025-07-08T07:24:33Z
source:         RIPE

Overlapping Ranges

BGP prefixes that are contained by 195.21.0.0/17

Range	ASN	Company	Num of IPs
195.21.49.0/24	AS3320	RCN	256
195.21.50.0/23	AS3320	RCN	512
195.21.96.0/19	AS1299	RCN	8,192
195.21.64.0/19	AS41354	GTT Communications Inc.	8,192

Nearby Ranges

BGP prefixes that overlap with 195.21.0.0/16

Range	ASN	Company	Num of IPs
195.21.96.0/19	AS1299	RCN	8,192
195.21.64.0/19	AS41354	GTT Communications Inc.	8,192
195.21.50.0/23	AS3320	RCN	512
195.21.49.0/24	AS3320	RCN	256

Hosted domains

There are 214 domain names hosted across 15 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
195.21.16.114	serviceplan-content.com	144
195.21.16.104	carglass-specials.de	2
195.21.21.235	3icon.de	2
195.21.16.102	connecting-euro.org	1
195.21.16.99	serviceplan-executive-circle.com	1
195.21.16.117	santassecret.de	1
195.21.16.100	trockennasenaffe.de	1
195.21.21.89	iselihof.ch	1
195.21.16.73	signon-group.de	1
195.21.21.218	me2022.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.

Useful for Cybersecurity

Read more

Pingable IPs

2,158 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
195.21.81.177	AS41354 ITS Technology Group Limited	`0.51ms` from London, GB
195.21.86.65	AS41354 ITS Technology Group Limited	`0.54ms` from London, GB
195.21.68.216	AS41354 ITS Technology Group Limited	`0.77ms` from Manchester, GB
195.21.53.97	AS3257 GTT Communications Inc.	`0.21ms` from Paris, FR
195.21.33.24	AS3257 GTT Communications Inc.	`0.33ms` from Amsterdam, NL
195.21.31.49	AS3257 GTT Communications Inc.	`2.50ms` from Hong Kong, HK
195.21.88.29	AS41354 ITS Technology Group Limited	`0.53ms` from London, GB
195.21.27.126	AS3257 GTT Communications Inc.	`0.51ms` from Vienna, AT
195.21.21.89	AS3257 GTT Communications Inc.	`0.41ms` from Zuerich, CH
195.21.23.126	AS3257 GTT Communications Inc.	`4.11ms` from Zuerich, CH
195.21.35.222	AS3257 GTT Communications Inc.	`0.45ms` from Amsterdam, NL
195.21.52.233	AS3257 GTT Communications Inc.	`0.46ms` from London, GB
195.21.85.153	AS41354 ITS Technology Group Limited	`0.56ms` from London, GB
195.21.45.12	AS3257 GTT Communications Inc.	`0.59ms` from London, GB
195.21.43.25	AS3257 GTT Communications Inc.	`0.42ms` from London, GB
195.21.69.154	AS41354 ITS Technology Group Limited	`0.79ms` from Manchester, GB
195.21.3.13	AS3257 GTT Communications Inc.	`5.47ms` from Stockholm, SE
195.21.55.233	AS3257 GTT Communications Inc.	`0.30ms` from Amsterdam, NL
195.21.36.21	AS3257 GTT Communications Inc.	`0.42ms` from Amsterdam, NL
195.21.87.9	AS41354 ITS Technology Group Limited	`0.53ms` from London, GB
195.21.64.141	AS41354 ITS Technology Group Limited	`0.69ms` from Manchester, GB
195.21.20.145	AS3257 GTT Communications Inc.	`3.53ms` from Zuerich, CH
195.21.89.105	AS41354 ITS Technology Group Limited	`0.67ms` from London, GB
195.21.37.217	AS3257 GTT Communications Inc.	`0.32ms` from London, GB
195.21.80.25	AS41354 ITS Technology Group Limited	`0.67ms` from London, GB

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
41.200.157.145	AS36947 Telecom Algeria	`14.46ms` from Algiers, DZ
83.82.2.1	AS33915 Vodafone Libertel B.V.	`6.18ms` from Amsterdam, NL
213.93.6.1	AS33915 Vodafone Libertel B.V.	`3.24ms` from Amsterdam, NL
83.86.228.1	AS33915 Vodafone Libertel B.V.	`2.00ms` from Amsterdam, NL
108.56.133.1	AS701 Verizon Business	`2.00ms` from Ashburn, US
70.187.90.1	AS22773 Cox Communications Inc.	`8.05ms` from Atlanta, US
190.146.16.1	AS10620 Telmex Colombia S.A.	`2.17ms` from Bogota, CO
181.52.154.1	AS10620 Telmex Colombia S.A.	`9.39ms` from Bogota, CO
131.128.76.33	AS14348 University of Rhode Island	`3.57ms` from Boston, US
173.237.207.1	AS26527 LightWave Networks	`0.73ms` from Boston, US
73.149.85.1	AS7922 Comcast Cable Communications, LLC	`2.03ms` from Boston, US
181.164.232.1	AS7303 Telecom Argentina S.A.	`1.79ms` from Buenos Aires, AR
88.242.112.1	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.93ms` from Bursa, TR
75.152.120.1	AS852 TELUS Communications Inc.	`13.11ms` from Calgary, CA
58.21.111.193	AS4837 CHINA UNICOM China169 Backbone	`3.22ms` from Changchun, CN
1.190.134.33	AS4837 CHINA UNICOM China169 Backbone	`9.91ms` from Changchun, CN
66.207.239.1	AS15153 StarVision, Inc.	`9.55ms` from Charlotte, US
66.153.156.193	AS21565 Horry Telephone Cooperative, Inc.	`9.07ms` from Charlotte, US
182.151.211.129	AS4134 CHINANET-BACKBONE	`2.38ms` from Chengdu, CN
64.197.199.33	AS7029 Windstream Communications LLC	`0.53ms` from Chicago, US
113.204.190.1	AS4837 CHINA UNICOM China169 Backbone	`2.47ms` from Chongqing, CN
3.150.122.113	AS16509 Amazon.com, Inc.	`0.69ms` from Columbus, US
68.201.78.1	AS11427 Charter Communications Inc	`9.70ms` from Dallas, US
144.30.32.17	AS13809 University of Arkansas for Medical Sciences	`6.91ms` from Dallas, US
187.216.71.49	AS8151 UNINET	`14.20ms` from Dallas, US

Traceroute

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

traceroute -a -n -q1 -f2 195.21.70.4

traceroute to 195.21.70.4 (195.21.70.4): 64 hops max, 52 byte packets

2 [] 91.200.241.140 0.305 ms

3 [] 195.66.231.225 1.467 ms

4 [AS41354] 185.20.129.199 0.888 ms

5 [AS41354] 185.20.129.220 1.071 ms

6 [AS41354] 185.207.68.147 1.485 ms

7 [AS41354] 195.21.70.4 1.502 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On November 14th 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.

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

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales