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Système Autonome

AS3257

GTT Communications Inc.

IPs annoncées
4,906,752
Préfixes CIDR
5,049
ASN
AS3257

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

58/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Active-threat / abuse risk −12
  • Isp allocation +5
  • Trust score 58 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About Global Telecom & Technology

GTT Communications, Inc. (GTT), formerly Global Telecom and Technology, is a Network as a Service (NaaS) and Security as a Service (SECaaS) provider headquartered in Arlington, Virginia.

Founded
1998
Headquarters
Arlington County
Industry
telephone company

⚠ 34 Préfixe MOASes — plusieurs ASN d'origine détectés

Toutes les anomalies MOAS →

Un préfixe auparavant stable, originaire de l'AS3257 est maintenant également annoncé par un autre ASN (MOAS — Multiple-Origin AS), détecté par nos collecteurs RIPE RIS. Souvent bénin (anycast, multi-homing, ou un transfert récent) — mais cela peut signaler une fuite de route ou un détournement de préfixe, il est donc utile de l'inspecter.

PréfixeASN d'origineDernière détection (UTC)
96.46.73.0/24 AS286, AS3257 2026-09-10 13:40:45
62.41.64.0/20 AS286, AS3257 2026-09-10 13:40:45
66.167.166.0/24 AS3257, AS9541 2026-09-10 13:40:45
66.167.90.0/24 AS3257, AS9541 2026-09-10 13:40:45
62.41.0.0/20 AS286, AS3257 2026-09-10 13:40:45
0.0.0.0/0 AS3257, AS212271 2026-09-10 13:40:45
193.31.250.0/24 AS286, AS3257 2026-09-10 13:40:45
95.177.63.0/24 AS286, AS984, AS3257 2026-09-10 13:40:45
195.81.225.0/24 AS286, AS3257 2026-09-10 13:40:45
208.116.153.0/24 AS286, AS3257, AS5777 2026-09-10 13:40:45
193.31.248.0/24 AS286, AS3257 2026-09-10 13:40:45
67.102.7.0/24 AS3257, AS9541 2026-09-10 13:40:45
194.121.123.0/24 AS286, AS3257, AS25038 2026-09-10 13:40:45
195.86.32.0/24 AS286, AS984, AS3257 2026-09-10 13:40:45
23.252.77.0/24 AS3257, AS19257 2026-09-10 13:40:45

Affichage des 15 plus récemment détectés parmi 34 préfixes MOAS. De nombreux préfixes multi-origines sur de grands réseaux sont bénins (anycast) ; voir toutes les anomalies MOAS.

Network profile

Source: PeeringDB →
Network type NSP
Traffic level 100+Tbps
Geographic scope Global
Traffic ratio Balanced
Peering policy Restrictive
IRR record AS-GTT

Present at 2 internet exchanges: LINX LON1: Main, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN

AS3257 — empreinte IP mondiale

Villes où l'AS3257 a une allocation IPv4 mesurable. Cliquez sur n'importe quel point pour ouvrir la page de cette ville. La taille et la couleur varient en fonction du nombre d'IP.

Voir sur le globe 3D →

Principales plages CIDR

CIDRIPsPTR DensityOrganisationPaysStateCity
217.204.0.0/14 262.1K
0.0%
GTT Communications Inc. GB England High Wycombe
217.204.0.0/15 131.1K
44.2%
GTT Communications Inc. GB England Larkfield
67.100.0.0/16 65.5K
88.0%
GTT Communications Inc. US Florida Miami
81.188.0.0/16 65.5K
26.7%
GTT Communications Inc. BE Flanders Grimbergen
82.111.0.0/16 65.5K
2.1%
GTT Communications Inc. GB
87.87.0.0/16 65.5K
0.0%
GTT Communications Inc. US Virginia Norfolk
134.222.0.0/16 65.5K
6.7%
GTT Communications Inc. US
195.81.0.0/16 65.5K
8.8%
GTT Communications Inc. US
212.168.0.0/16 65.5K
4.9%
GTT Communications Inc. US Virginia Ashburn
217.205.0.0/16 65.5K
0.0%
GTT Communications Inc. GB England Larkfield
217.207.0.0/16 65.5K
3.0%
GTT Communications Inc. GB England Wandsworth
68.166.0.0/17 32.8K
86.6%
OCULUS NETWORKS INC US
69.3.0.0/17 32.8K
83.0%
OCULUS NETWORKS INC US
81.188.0.0/17 32.8K
0.0%
GTT Communications Inc. BE
85.189.128.0/17 32.8K
85.9%
GTT Communications Inc. GB England Worcester Park
86.53.0.0/17 32.8K
20.1%
GTT Communications Inc. GB England London
87.85.0.0/17 32.8K
0.9%
GTT Communications Inc. GB
87.86.128.0/17 32.8K
1.5%
GTT Communications Inc. GB England Brighton
87.87.128.0/17 32.8K
0.0%
GTT Communications Inc. US Illinois Chicago
89.202.128.0/17 32.8K
4.4%
GTT Communications Inc. US
154.14.0.0/17 32.8K
13.0%
GTT Communications Inc. CH
195.81.128.0/17 32.8K
0.0%
GTT Communications Inc. US
205.179.0.0/17 32.8K
87.4%
GTT Communications Inc. US
212.168.0.0/17 32.8K
2.7%
GTT Communications Inc. US
212.189.0.0/17 32.8K
0.2%
GTT Communications Inc. US California Los Angeles
212.221.0.0/17 32.8K
16.1%
GTT Communications Inc. US
212.222.128.0/17 32.8K
6.3%
GTT Communications Inc. US
213.39.0.0/17 32.8K
17.9%
GTT Communications Inc. US Île-de-France Paris
217.206.0.0/17 32.8K
14.0%
GTT Communications Inc. GB England Birmingham
217.206.128.0/17 32.8K
0.0%
GTT Communications Inc. GB England West Bromwich
62.50.0.0/18 16.4K
87.9%
GTT Communications Inc. US South Holland Rotterdam
63.133.128.0/18 16.4K
0.0%
GTT Communications Inc. US
64.51.64.0/18 16.4K
86.2%
GTT Communications Inc. US
64.51.128.0/18 16.4K
86.9%
GTT Communications Inc. US
64.205.64.0/18 16.4K
0.0%
GTT Communications Inc. US
65.86.64.0/18 16.4K
80.2%
GTT Communications Inc. US Virginia Ashburn
66.226.192.0/18 16.4K
90.8%
GTT Communications Inc. US
68.166.192.0/18 16.4K
95.4%
OCULUS NETWORKS INC US Washington Redmond
72.245.192.0/18 16.4K
0.0%
GTT Communications Inc. US District of Columbia Washington
77.67.0.0/18 16.4K
3.6%
GTT Communications Inc. US
81.188.192.0/18 16.4K
0.0%
GTT Communications Inc. BE
82.109.192.0/18 16.4K
2.5%
GTT Communications Inc. GB
83.148.128.0/18 16.4K
85.6%
GTT Communications Inc. GB
85.189.64.0/18 16.4K
81.7%
GTT Communications Inc. GB England Nottingham
85.189.128.0/18 16.4K
0.0%
GTT Communications Inc. GB England Worcester Park
86.53.64.0/18 16.4K
20.4%
GTT Communications Inc. GB England London
86.53.192.0/18 16.4K
13.9%
GTT Communications Inc. GB England Rainham
87.85.0.0/18 16.4K
1.1%
GTT Communications Inc. GB
87.85.128.0/18 16.4K
0.6%
GTT Communications Inc. GB
87.86.128.0/18 16.4K
0.7%
GTT Communications Inc. GB England Brighton
87.86.192.0/18 16.4K
2.3%
GTT Communications Inc. GB England Brighton
89.149.128.0/18 16.4K
28.1%
GTT Communications Inc. US
89.202.192.0/18 16.4K
0.0%
GTT Communications Inc. US
92.54.128.0/18 16.4K
2.7%
GTT Communications Inc. GB England Chippenham
134.222.0.0/18 16.4K
0.0%
GTT Communications Inc. NL
149.235.64.0/18 16.4K
0.0%
GTT Communications Inc. GB
149.235.128.0/18 16.4K
90.7%
GTT Communications Inc. GB
154.14.128.0/18 16.4K
32.7%
GTT Communications Inc. CH
194.150.0.0/18 16.4K
2.8%
GTT Communications Inc. US New York New York
194.195.128.0/18 16.4K
0.0%
GTT Communications Inc. DE
195.81.64.0/18 16.4K
0.0%
GTT Communications Inc. US
195.149.128.0/18 16.4K
5.0%
GTT Communications Inc. US
195.177.0.0/18 16.4K
1.6%
GTT Communications Inc. DE
195.180.64.0/18 16.4K
0.3%
GTT Communications Inc. DE
206.108.128.0/18 16.4K
82.3%
GTT Communications Inc. CA Ontario Whitby
212.81.64.0/18 16.4K
1.0%
GTT Communications Inc. US
212.115.128.0/18 16.4K
13.4%
GTT Communications Inc. US
212.168.64.0/18 16.4K
0.0%
GTT Communications Inc. US
212.168.128.0/18 16.4K
14.1%
GTT Communications Inc. US Virginia Ashburn
212.221.64.0/18 16.4K
19.2%
GTT Communications Inc. US
212.222.64.0/18 16.4K
24.6%
GTT Communications Inc. US
212.222.192.0/18 16.4K
0.6%
GTT Communications Inc. US
213.193.128.0/18 16.4K
23.6%
GTT Communications Inc. BE
213.200.64.0/18 16.4K
13.8%
GTT Communications Inc. US
213.235.0.0/18 16.4K
4.9%
GTT Communications Inc. GB England Bedford
213.251.0.0/18 16.4K
13.0%
GTT Communications Inc. US
213.254.192.0/18 16.4K
20.5%
GTT Communications Inc. US
216.36.64.0/18 16.4K
74.4%
GTT Communications Inc. US Illinois Chicago
216.138.64.0/18 16.4K
74.7%
GTT Communications Inc. US
216.175.128.0/18 16.4K
5.8%
OCULUS NETWORKS INC US
217.204.192.0/18 16.4K
0.0%
GTT Communications Inc. GB England High Wycombe
217.206.64.0/18 16.4K
0.0%
GTT Communications Inc. GB England Birmingham
217.206.128.0/18 16.4K
2.8%
GTT Communications Inc. GB England West Bromwich
38.72.160.0/19 8.2K
0.0%
GTT Communications Inc. US Texas Greenville
46.33.64.0/19 8.2K
37.5%
GTT Communications Inc. US
46.34.0.0/19 8.2K
2.3%
GTT Communications Inc. GB
62.50.32.0/19 8.2K
0.0%
GTT Communications Inc. DE
62.50.64.0/19 8.2K
94.9%
GTT Communications Inc. US
62.105.224.0/19 8.2K
94.0%
GTT Communications Inc. US
63.133.128.0/19 8.2K
86.8%
IPNetZone US
63.250.96.0/19 8.2K
90.6%
GTT Communications Inc. CA
64.51.32.0/19 8.2K
0.0%
GTT Communications Inc. US New York New York
64.51.192.0/19 8.2K
89.3%
GTT Communications Inc. US
64.105.32.0/19 8.2K
74.0%
GTT Communications Inc. US Illinois Chicago
64.144.160.0/19 8.2K
92.1%
GTT Communications Inc. US
64.205.0.0/19 8.2K
0.0%
GTT Communications Inc. US
65.86.0.0/19 8.2K
71.1%
GTT Communications Inc. US
65.86.64.0/19 8.2K
67.2%
GTT Communications Inc. US Virginia Ashburn
65.86.96.0/19 8.2K
93.2%
GTT Communications Inc. US
66.54.224.0/19 8.2K
2.8%
GTT Communications Inc. US California Santa Clara

Préfixes BGP annoncés

Anomalies BGP en direct →

Préfixes AS3257 provient réellement du BGP, observé par nos collecteurs RIPE RIS. Cette vue de routage en direct peut différer de l'allocation de registre ci-dessus.

PrefixÉchantillons d'annonceDernière vue
89.149.148.0/24 191,020 2026-09-10 13:38:02
192.101.145.0/24 139,592 2026-09-10 12:53:09
13.143.232.0/24 58,478 2026-09-03 14:04:58
23.252.77.0/24 39,922 2026-09-10 07:25:48
93.187.169.0/24 39,616 2026-09-10 13:14:39
23.252.78.0/24 39,274 2026-09-10 07:25:48
142.131.238.0/23 34,023 2026-09-10 13:38:12
66.80.133.0/24 27,909 2026-09-10 11:20:28
52.119.96.0/24 24,943 2026-09-10 12:50:44
128.177.95.0/24 24,774 2026-09-10 11:21:42
135.196.56.0/21 23,953 2026-09-10 11:21:49
38.72.160.0/19 23,241 2026-09-10 12:50:13
173.205.34.0/24 22,907 2026-09-10 11:22:35
173.205.21.0/24 22,893 2026-09-10 11:22:35
69.174.90.0/24 22,588 2026-09-10 12:50:44
66.80.172.0/22 22,552 2026-09-10 11:20:28
66.134.92.0/23 22,538 2026-09-10 11:20:28
66.134.88.0/23 22,532 2026-09-10 11:20:28
66.227.119.0/24 22,531 2026-09-10 11:20:29
66.167.202.0/23 22,466 2026-09-10 11:20:28
66.167.80.0/23 22,460 2026-09-10 11:20:28
66.167.6.0/23 22,460 2026-09-10 11:20:28
66.134.66.0/23 22,456 2026-09-10 11:20:28
68.64.133.0/24 22,450 2026-09-10 11:20:33
66.253.1.0/24 22,437 2026-09-10 11:20:30
66.253.0.0/24 22,434 2026-09-10 11:20:30
70.39.156.0/24 22,358 2026-09-10 11:20:35
70.39.255.0/24 22,354 2026-09-10 11:20:35
70.39.154.0/24 22,352 2026-09-10 11:20:35
70.39.254.0/24 22,351 2026-09-10 11:20:35
70.39.191.0/24 22,348 2026-09-10 11:20:35
70.39.242.0/24 22,340 2026-09-10 11:20:35
70.39.170.0/24 22,321 2026-09-10 11:20:35
69.17.66.0/24 22,317 2026-09-10 11:20:33
69.17.65.0/24 22,315 2026-09-10 11:20:33
67.102.7.0/24 22,132 2026-09-10 13:39:17
72.13.224.0/24 22,113 2026-09-10 11:20:36
72.13.246.0/24 22,113 2026-09-10 11:20:36
72.13.234.0/24 22,091 2026-09-10 11:20:36
154.206.248.0/21 21,983 2026-09-10 13:39:14
154.206.240.0/21 21,977 2026-09-10 13:39:14
66.167.166.0/24 20,756 2026-09-10 13:39:17
2.27.196.0/22 20,235 2026-09-10 04:09:31
80.81.77.0/24 19,828 2026-09-10 12:41:17
80.81.76.0/24 19,823 2026-09-10 12:41:17
62.41.32.0/24 18,782 2026-09-10 11:20:22
195.190.155.0/24 18,698 2026-09-10 12:53:36
92.71.48.0/21 18,286 2026-09-10 11:20:57
86.53.28.0/24 18,233 2026-07-13 06:46:15
195.160.193.0/24 17,867 2026-09-10 12:44:48

Affichage des meilleurs 50 of 1,907 préfixes annoncés par volume d'échantillons.

Frequently Asked Questions

Qu'est-ce que l'AS3257 ?

L'AS3257 est un numéro de système autonome attribué à GTT Communications Inc.. Un ASN identifie un réseau qui contrôle un ensemble spécifique d'adresses IP et détermine comment le trafic est acheminé sur internet via BGP (Border Gateway Protocol).

Combien d'adresses IP l'AS3257 annonce-t-il ?

L'AS3257 annonce 4.91M adresses IPv4 réparties sur 5,049 préfixes CIDR routés. Le réseau est enregistré en United States.

Qui opère l'AS3257 ?

L'AS3257 est opéré par GTT Communications Inc.. L'organisation est basée en United States. Vous pouvez consulter toutes les plages IP et les ASN associés sur la page de l'organisation.

Dans quel pays l'AS3257 est-il enregistré ?

L'AS3257 est enregistré en United States. Cela indique où le siège de l'opérateur de réseau est situé, bien que les adresses IP qu'il annonce puissent servir des utilisateurs dans le monde entier.

Dernière mise à jour : 2026-09-10 13:39:05 UTC
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