AS3257
GTT Communications Inc. ISP registered in United States
1,344IPv4 prefixes
48IPv6 prefixes
36%RPKI-valid
#3AS Rank
#25Rank in United States
1994-09-30Allocated
GTT Communications Inc. (AS3257) — ISP, registered in United States. announces 1,344 IPv4 prefixes + 48 IPv6 prefixes. Rank in United States: #25. Allocated: 1994-09-30.
IPv4 1,344IPv6 48
Announced prefixes · 1,392
- v4 193.238.144.0/22 unknown
- v4 193.238.164.0/22 unknown
- v4 193.238.248.0/22 unknown
- v4 193.239.132.0/24 unknown
- v4 193.24.109.0/24 valid
- v4 193.24.127.0/24 valid
- v4 193.242.80.0/20 valid
- v4 193.3.62.0/24 unknown
- v4 193.31.248.0/24 unknown
- v4 193.31.249.0/24 unknown
- v4 193.31.250.0/24 unknown
- v4 193.33.72.0/23 unknown
- v4 193.43.151.0/24 unknown
- v4 193.57.148.0/24 unknown
- v4 193.96.188.0/24 unknown
- v4 194.116.218.0/24 unknown
- v4 194.116.219.0/24 unknown
- v4 194.120.0.0/24 valid
- v4 194.120.112.0/22 valid
- v4 194.120.120.0/22 valid
- v4 194.120.43.0/24 valid
- v4 194.121.104.0/23 valid
- v4 194.121.123.0/24 valid
- v4 194.121.203.0/24 valid
- v4 194.121.220.0/22 valid
- v4 194.121.52.0/22 valid
- v4 194.122.120.0/21 valid
- v4 194.122.224.0/20 valid
- v4 194.122.248.0/22 valid
- v4 194.122.76.0/22 valid
- v4 194.122.80.0/21 valid
- v4 194.123.122.0/24 valid
- v4 194.123.164.0/24 valid
- v4 194.140.252.0/24 unknown
- v4 194.145.222.0/23 unknown
- v4 194.150.0.0/18 unknown
- v4 194.154.96.0/19 unknown
- v4 194.158.0.0/19 unknown
- v4 194.158.10.0/24 unknown
- v4 194.158.18.0/24 unknown
- v4 194.165.64.0/19 unknown
- v4 194.183.103.0/24 unknown
- v4 194.183.96.0/19 unknown
- v4 194.187.156.0/22 unknown
- v4 194.195.128.0/18 unknown
- v4 194.231.0.0/16 unknown
- v4 194.24.192.0/19 unknown
- v4 194.242.128.0/19 unknown
- v4 194.41.62.0/24 valid
- v4 194.42.224.0/19 unknown
RPKI: rpki.cloudflare.com · 2026-06-22
— Routing status unavailable
Prefix history
Data table
| Day | Announced prefixes |
|---|---|
| 2026-06-12 | 1400 |
| 2026-06-13 | 1400 |
| 2026-06-14 | 1391 |
| 2026-06-16 | 1391 |
| 2026-06-17 | 1391 |
| 2026-06-19 | 1391 |
| 2026-06-20 | 1392 |
| 2026-06-21 | 1392 |
| 2026-06-22 | 1392 |
Internet Exchanges · 2
- DE-CIX Frankfurt Frankfurt 100 Gbps
- LINX LON1 London 10 Gbps
Facilities · 275
- 123.NET - DC1 - 24700 Northwestern Hwy. Southfield
- 1500 Champa Denver
- AT TOKYO (CC1/CC2) Tokyo
- ATMAN Data Center Warsaw-2 (WAW-2, Konstruktorska 5) Warsaw
- Arelion Oslo OKR/C Oslo
- BIT-2 Ede
- BIX Building (Victor Hugo street) Budapest
- Bulk Oslo Internet Exchange - OS-IX Oslo
- CE Colo Prague Prague
- CIX Cork City
- COLT in Asia Tokyo Data Center 1 (TDC1) Tokyo
- CarrierColo Berlin Luetzow (I/P/B/ site B) Berlin
- ColoHouse Miami Miami
- Cologix COL1 Columbus
- Cologix COL2 Columbus
- Cologix COL3 Columbus
- Cologix DAL1 Dallas
- Cologix DAL2 Dallas
- Cologix DAL3 Dallas
- Cologix JAX1 Jacksonville
- Cologix MIN1 Minneapolis
- Cologix MTL1 Montreal
- Cologix MTL2 Montreal
- Cologix MTL3 Montreal
- Cologix TOR1 Toronto
+250
AS topology · Customer cone 41,927
Peers · 38
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