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 190.151.58.0/24 valid
- v4 191.96.48.0/24 valid
- v4 192.101.145.0/24 unknown
- v4 192.129.32.0/23 valid
- v4 192.129.36.0/24 valid
- v4 192.129.43.0/24 valid
- v4 192.129.44.0/24 valid
- v4 192.129.46.0/23 valid
- v4 192.129.48.0/23 valid
- v4 192.129.54.0/24 valid
- v4 192.129.56.0/23 valid
- v4 192.16.202.0/24 valid
- v4 192.209.20.0/22 unknown
- v4 192.36.98.0/24 unknown
- v4 192.54.104.0/24 valid
- v4 192.64.251.0/24 unknown
- v4 192.67.190.0/23 valid
- v4 192.67.192.0/22 valid
- v4 192.67.196.0/24 valid
- v4 192.71.157.0/24 unknown
- v4 192.83.254.0/23 unknown
- v4 192.92.112.0/24 unknown
- v4 193.0.158.0/24 unknown
- v4 193.0.255.0/24 unknown
- v4 193.104.114.0/24 unknown
- v4 193.105.128.0/24 unknown
- v4 193.105.36.0/24 valid
- v4 193.108.17.0/24 unknown
- v4 193.109.48.0/24 unknown
- v4 193.109.49.0/24 unknown
- v4 193.131.248.0/22 unknown
- v4 193.138.80.0/24 valid
- v4 193.141.0.0/23 valid
- v4 193.141.140.0/23 valid
- v4 193.141.2.0/24 invalid
- v4 193.141.40.0/22 valid
- v4 193.141.44.0/23 valid
- v4 193.16.20.0/24 unknown
- v4 193.16.21.0/24 unknown
- v4 193.163.105.0/24 unknown
- v4 193.163.208.0/21 unknown
- v4 193.169.218.0/23 unknown
- v4 193.17.185.0/24 valid
- v4 193.17.186.0/24 valid
- v4 193.189.192.0/19 unknown
- v4 193.189.199.0/24 unknown
- v4 193.201.84.0/22 unknown
- v4 193.221.101.0/24 unknown
- v4 193.221.110.0/24 unknown
- v4 193.221.98.0/24 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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