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 135.196.232.0/23 valid
- v4 135.196.238.0/23 valid
- v4 135.196.48.0/21 valid
- v4 135.196.56.0/21 invalid
- v4 135.196.80.0/21 unknown
- v4 136.0.48.0/24 valid
- v4 137.44.124.0/23 valid
- v4 141.0.192.0/21 unknown
- v4 141.0.32.0/19 unknown
- v4 141.136.96.0/20 valid
- v4 142.111.132.0/24 valid
- v4 142.111.138.0/24 valid
- v4 142.111.163.0/24 valid
- v4 142.111.164.0/24 valid
- v4 142.111.165.0/24 valid
- v4 142.111.166.0/24 valid
- v4 142.111.179.0/24 valid
- v4 142.111.185.0/24 valid
- v4 142.111.195.0/24 valid
- v4 142.111.196.0/24 valid
- v4 142.111.198.0/24 valid
- v4 142.111.200.0/24 valid
- v4 142.111.209.0/24 valid
- v4 142.111.251.0/24 valid
- v4 142.131.238.0/23 unknown
- v4 142.147.192.0/20 unknown
- v4 142.147.208.0/20 unknown
- v4 142.252.117.0/24 valid
- v4 142.252.138.0/24 valid
- v4 142.252.148.0/22 valid
- v4 142.252.192.0/22 valid
- v4 142.252.209.0/24 valid
- v4 142.252.38.0/24 valid
- v4 142.252.60.0/22 valid
- v4 142.252.89.0/24 valid
- v4 142.39.68.0/24 unknown
- v4 142.39.69.0/24 unknown
- v4 142.39.70.0/24 unknown
- v4 142.39.71.0/24 unknown
- v4 142.39.72.0/24 unknown
- v4 142.39.73.0/24 unknown
- v4 143.14.127.0/24 valid
- v4 143.14.37.0/24 valid
- v4 145.43.251.0/24 valid
- v4 146.19.50.0/24 valid
- v4 146.19.55.0/24 unknown
- v4 149.126.104.0/21 unknown
- v4 149.235.0.0/16 unknown
- v4 149.62.43.0/24 valid
- v4 153.76.16.0/21 unknown
RPKI: rpki.cloudflare.com · 2026-06-20
— 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 |
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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