Autonomous system
AS3257 GTT-BACKBONE GTT
Transit RIPE NSP
Summary
GTT Communications
tier-1 transit backbone
GTT operates a large global IP backbone (GTT-BACKBONE), long ranked as a
Tier 1 network, providing transit and enterprise WAN services.
What it's used for
- Global IP transit sold to ISPs, hosting providers, and enterprises.
- Managed networking (SD-WAN, internet, MPLS) for multinational businesses.
Notable
- A Tier 1: reaches the entire internet through settlement-free peering. The AS3257 backbone descends from carriers GTT rolled up, including Tinet and Tiscali International.
- In 2021 GTT sold its physical infrastructure (fibre, subsea cables, and data centers — including the former Hibernia and Interoute assets) to I Squared Capital, which relaunched it as EXA Infrastructure. GTT kept the AS3257 IP transit and its managed-networking business, now riding partly on EXA's fibre.
Interesting
- Because it peers so widely, AS3257 appears frequently as a mid-path transit hop in traceroutes even when neither endpoint is its customer.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3,927 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS3257- Registry name
- GTT-BACKBONE
- Registrant
- AS3257-ROUTE-MNT
- Abuse contact
- abuse@gtt.net
- Registered
- 2002-09-20
- Last changed
- 2026-07-28
- Status
- active
Declared
PeeringDB profile
- Name
- GTT Communications (AS3257)
- Also known as
- fka Tinet, Inteliquent, Tiscali International Network
- Network type
- NSP
- Scope
- Global
- Traffic ratio
- Balanced
- Peering policy
- Restrictive
- IRR as-set
AS-GTT- Present at
- 2 exchanges
- Facilities
- 275 facilities
- Website
- http://www.gtt.net
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Reputation
Classification and threat
Transit Tier-1 or major backbone carrying other networks’ traffic.
3 IC3 indicators addresses in this network appear in FBI IC3 cybersecurity advisories.
| Prefix | Advisory | Published |
|---|---|---|
31.58.169.85 | Cyber Criminal Groups UNC6040 and UNC6395 Compromising Salesforce Instances for Data Theft and Extortion | 2025-09-12 |
31.58.169.92 | Cyber Criminal Groups UNC6040 and UNC6395 Compromising Salesforce Instances for Data Theft and Extortion | 2025-09-12 |
31.58.169.96 | Cyber Criminal Groups UNC6040 and UNC6395 Compromising Salesforce Instances for Data Theft and Extortion | 2025-09-12 |
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere