AS3257 GTT Communications Inc. 🇺🇸 US
Announcing 1,979 prefixes, seen at the RIS collectors.
IPv4 prefixes
1,909
9,386,008 (36,664 × /24)
IPv6 prefixes
70
104 × /32
Upstreams
41
transit providers observed
Peers
28
settlement-free adjacencies
Downstreams
1,798
transit customers observed
Customer cone
65,626
ASes reachable through it
Registry and operator data
- AS number
- AS3257
- Name
- GTT Communications Inc.
- Organisation
- GTT Communications (AS3257)
- Country
- 🇺🇸 US
- RIR
- RIPENCC
- Allocated
- 1994-09-30
- Network type
- NSP
- Traffic levels
- 100+Tbps
- Scope
- Global
- Peering policy
- Restrictive
- IRR as-set
- RIPE::AS-GTT
- Website
- http://www.gtt.net
- Looking glass
- http://www.as3257.net/lg/
- PeeringDB
- net/14
- Exchanges
- 2
- Facilities
- 275
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
1,979 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 216.132.225.0/24 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.133.0.0/17 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.133.128.0/18 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.133.146.0/24 v4 | RPKI valid | 42 | 345493257 | 2026-09-18 |
| 216.133.147.0/24 v4 | RPKI valid | 42 | 345493257 | 2026-09-18 |
| 216.133.192.0/19 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.138.64.0/18 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.145.43.0/24 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.151.224.0/19 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.170.113.0/24 v4 | no ROA | 41 | 345493257 | 2026-09-18 |
| 216.170.115.0/24 v4 | no ROA | 41 | 345493257 | 2026-09-18 |
| 216.175.128.0/17 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.184.128.0/17 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.193.192.0/18 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.221.144.0/20 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.224.0.0/18 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.231.32.0/19 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.234.32.0/19 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.254.0.0/17 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 216.254.4.0/24 v4 | RPKI valid | 42 | 345493257 | 2026-09-18 |
| 216.254.88.0/24 v4 | no ROA | 41 | 345493257 | 2026-09-18 |
| 216.254.89.0/24 v4 | no ROA | 41 | 345493257 | 2026-09-18 |
| 216.254.90.0/24 v4 | no ROA | 41 | 345493257 | 2026-09-18 |
| 216.254.91.0/24 v4 | no ROA | 41 | 345493257 | 2026-09-18 |
| 217.8.192.0/19 v4 | no ROA | 43 | 345493257 | 2026-09-18 |
| 217.22.224.0/19 v4 | RPKI valid | 41 | 345493257 | 2026-09-18 |
| 217.66.128.0/21 v4 | RPKI invalid | 1 | 333311033257 | 2026-09-18 |
| 217.79.96.0/19 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 217.79.160.0/20 v4 | RPKI valid | 41 | 345493257 | 2026-09-18 |
| 217.114.112.0/20 v4 | no ROA | 43 | 345493257 | 2026-09-18 |
| 217.117.160.0/20 v4 | RPKI valid | 43 | 345493257 | 2026-09-18 |
| 217.118.112.0/20 v4 | RPKI valid | 43 | 345493257 | 2026-09-18 |
| 217.145.112.0/20 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 217.156.175.0/24 v4 | no ROA | 41 | 345493257 | 2026-09-18 |
| 217.195.224.0/19 v4 | RPKI valid | 43 | 345493257 | 2026-09-18 |
| 217.204.0.0/14 v4 | no ROA | 42 | 345493257 | 2026-09-18 |
| 217.204.0.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.204.8.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.204.10.0/24 v4 | RPKI invalid | 7 | 226523257 | 2026-09-23 |
| 217.204.12.0/24 v4 | RPKI invalid | 7 | 226523257 | 2026-09-23 |
| 217.204.14.0/24 v4 | RPKI invalid | 7 | 226523257 | 2026-09-23 |
| 217.204.15.0/24 v4 | RPKI invalid | 7 | 226523257 | 2026-09-23 |
| 217.204.16.0/20 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.204.32.0/24 v4 | RPKI invalid | 7 | 226523257 | 2026-09-23 |
| 217.204.33.0/24 v4 | RPKI invalid | 7 | 226523257 | 2026-09-23 |
| 217.204.35.0/24 v4 | RPKI invalid | 7 | 226523257 | 2026-09-23 |
| 217.204.60.0/24 v4 | RPKI invalid | 7 | 226523257 | 2026-09-23 |
| 217.204.112.0/20 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.204.144.0/20 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.204.160.0/19 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.204.192.0/18 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.0.0/19 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.32.0/22 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.36.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.38.0/24 v4 | no ROA | 41 | 345493257 | 2026-10-06 |
| 217.205.40.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.43.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.44.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.47.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.48.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.56.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.58.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.60.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.63.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.64.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.67.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.68.0/22 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.72.0/22 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.76.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.79.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.80.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.88.0/22 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.92.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.94.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.96.0/20 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.112.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.120.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.122.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.124.0/22 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.128.0/22 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.132.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.134.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.136.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.144.0/22 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.148.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.151.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.152.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.160.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.168.0/22 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.172.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.174.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.176.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.184.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.186.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.188.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.190.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.192.0/20 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.208.0/22 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.213.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.214.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.216.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.224.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.232.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.234.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.236.0/22 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.240.0/21 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.248.0/24 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.250.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 217.205.252.0/23 v4 | no ROA | 42 | 345493257 | 2026-10-06 |
| 2001:590::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2001:590:3400::/38 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2001:668::/29 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2001:668::/32 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2001:668:126::/48 v6 | RPKI valid | 1 | 4439320579464515655342047346373257 | 2026-09-18 |
| 2001:668:130::/48 v6 | RPKI valid | 16 | 345493257 | 2026-09-18 |
| 2001:67c:1514::/48 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2001:680::/32 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2001:680:16::/48 v6 | RPKI valid | 1 | 4439320579464515655342047346373257 | 2026-09-18 |
| 2001:6f8::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2001:6f8:200::/39 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2001:6f8:206::/48 v6 | no ROA | 1 | 4439320579464515655342047346373257 | 2026-09-18 |
| 2001:6f8:1800::/39 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2001:6f8:1903::/48 v6 | no ROA | 19 | 3454964533257 | 2026-09-18 |
| 2001:aa0::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2001:aa0:7000::/36 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2001:1478::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2001:1478:201::/48 v6 | no ROA | 1 | 4439320579464515655342047346373257 | 2026-09-18 |
| 2001:1478:700::/48 v6 | no ROA | 1 | 4439320579464515655342047346373257 | 2026-09-18 |
| 2001:1478:1801::/48 v6 | no ROA | 1 | 4439320579464515655342047346373257 | 2026-09-18 |
| 2001:4890::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2400:f780::/32 v6 | no ROA | 27 | 345493257 | 2026-09-18 |
| 2405:5e00::/32 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2600:1407:1c::/48 v6 | RPKI invalid | 5 | 226523257 | 2026-09-18 |
| 2602:ffb7:590::/46 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2604:cf80::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2605:d480::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2606:6200::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2607:f588::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2610:38::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2620:131:2024::/48 v6 | RPKI invalid | 5 | 226523257 | 2026-09-18 |
| 2620:135:7003::/48 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a00:16c8::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a00:16c8:10b::/48 v6 | no ROA | 1 | 4439320579464515655342047346373257 | 2026-09-18 |
| 2a00:16c8:10c::/48 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a00:1750::/32 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a00:43c0::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a00:4b00:171::/48 v6 | no ROA | 1 | 4439320579464515655342047346373257 | 2026-09-18 |
| 2a00:7580:16::/48 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a00:80c0::/32 v6 | no ROA | 32 | 345493257 | 2026-10-20 |
| 2a00:8d00::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a00:bb40::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a02:9e8::/32 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a02:d28::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a02:6280::/32 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a04:e00:2::/48 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a04:1120::/30 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a04:6640::/29 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a04:a3c7::/32 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a05:18c0::/29 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a05:a882:de10::/48 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a06:1180:12bb::/48 v6 | RPKI invalid | 2 | 226523257 | 2026-09-18 |
| 2a06:2b81::/32 v6 | RPKI invalid | 5 | 226523257 | 2026-09-18 |
| 2a06:9f47::/32 v6 | RPKI invalid | 1 | 503003257 | 2026-11-04 |
| 2a0a:1f40::/29 v6 | RPKI invalid | 1 | 503003257 | 2026-11-04 |
| 2a0a:2d04:9825::/48 v6 | RPKI invalid | 2 | 226523257 | 2026-09-18 |
| 2a0a:6041::/32 v6 | RPKI invalid | 5 | 226523257 | 2026-09-18 |
| 2a0c:7881:98dd::/48 v6 | RPKI invalid | 2 | 226523257 | 2026-09-18 |
| 2a0c:8640::/30 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a0d:d901::/32 v6 | RPKI invalid | 5 | 226523257 | 2026-09-18 |
| 2a0e:15c0:1213::/48 v6 | no ROA | 32 | 345493257 | 2026-09-18 |
| 2a0f:7d00:32ba::/48 v6 | RPKI invalid | 2 | 226523257 | 2026-09-18 |
| 2a0f:b242::/32 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a0f:b243::/32 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a0f:b247::/32 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a13:fc00::/29 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a14:4340::/29 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a14:4b00::/29 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a14:5200::/29 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |
| 2a14:d281::/32 v6 | RPKI valid | 32 | 345493257 | 2026-09-18 |