AS3257
GTT Communications Inc.
AS 3257 GTT-BACKBONE
Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.
| ASN | 3257 |
|---|---|
| Name | GTT-BACKBONE |
| Organization | GTT Communications Inc. |
| Country | United States |
| Registry | RIPE NCC |
IPv4 Prefixes for AS3257 - showing the first 20 of 1,140 networks
| Network | Location | Addresses | |
|---|---|---|---|
| 103.232.16.0/22 | Tinet Hong Kong limited |  Los Angeles |
1,024 |
| 103.254.161.0/24 | GTT Communications Inc. |  Chennai |
256 |
| 103.84.153.0/24 | Netactuate |  Singapore (Queenstown Estate) |
256 |
| 103.84.154.0/24 | Netactuate |  Shinagawa (Higashishinagawa) |
256 |
| 104.143.184.0/24 | GTT Communications Inc. | Denver |
256 |
| 104.153.224.0/22 | GTT Communications Inc. | Summit |
1,024 |
| 104.164.200.0/24 | GTT Communications Inc. | New York |
256 |
| 104.165.105.0/24 | EGIHosting | Washington D.C. |
256 |
| 104.165.199.0/24 | EGIHosting | Dallas |
256 |
| 104.192.220.0/22 | GTT Communications Inc. | Burbank |
1,024 |
| 104.225.102.0/24 | NetActuate, Inc | Phoenix |
256 |
| 104.225.106.0/23 | NetActuate, Inc |  Johannesburg |
512 |
| 104.225.15.0/24 | NetActuate, Inc | Dallas |
256 |
| 104.225.16.0/24 | GTT Communications Inc. | Cary |
256 |
| 104.225.18.0/24 | GTT Communications Inc. | Los Angeles (Central LA) |
256 |
| 104.225.21.0/24 | GTT Communications Inc. | Miami |
256 |
| 104.225.22.0/24 | GTT Communications Inc. | San Jose |
256 |
| 104.225.4.0/22 | NetActuate, Inc | Sunnyvale |
1,024 |
| 104.225.95.0/24 | GTT Communications Inc. |  Sydney |
256 |
| 104.225.98.0/24 | GTT Communications Inc. |  Amsterdam |
256 |
IPv6 Prefixes for AS3257 - showing the first 20 of 90 networks
| Network | Location | /64 Prefixes | |
|---|---|---|---|
| 2001:1478::/32 | Interoute Communications Ltd |  Prague (Praha 10) |
232 |
| 2001:4890::/32 | GTT Communications Inc. | Tysons Corner |
232 |
| 2001:590:3400::/38 | GTT Communications Inc. | McLean |
226 |
| 2001:590::/32 | GTT Communications Inc. | McLean |
232 |
| 2001:668:1f:fe09::/64 | Gtt | Washington D.C. |
20 |
| 2001:668:1f:ff77::/64 | Gtt |  London |
20 |
| 2001:668:1f:ff80::/64 | GTT Communications Inc. |  Waldenburg |
20 |
| 2001:668::/29 | Gtt | London |
235 |
| 2001:668::/32 | Gtt | London |
232 |
| 2001:67c:1030::/48 | GTT Communications Inc. |  Guyancourt |
216 |
| 2001:67c:1514::/48 | Easywan via KPN Eurorings B.V | Munich (Ludwigsvorstadt-Isarvorstadt) |
216 |
| 2001:680::/32 | Gtt | Amsterdam |
232 |
| 2001:6f8:1800::/39 | Gtt | Amsterdam |
225 |
| 2001:6f8:1903::/48 | Gtt | Amsterdam |
216 |
| 2001:6f8:200::/39 | Easynet Group plc |  Woluwe-Saint-Lambert |
225 |
| 2001:6f8::/32 | Easynet Group plc | London (St Katharine's & Wapping) |
232 |
| 2400:f780::/32 | GTT Communications Inc. | Pune (Bahiratwadi) |
232 |
| 2403:2500:300::/48 | Netactuate | Singapore (Queenstown Estate) |
216 |
| 2403:2500:4000::/41 | GTT Communications Inc. | Chennai |
223 |
| 2403:2500:4000::/48 | GTT Communications Inc. | Chennai |
216 |