Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS3257

Announcement observedRIPE NCC

GTT-BACKBONE GTT Communications Inc. · GTT-BACKBONE

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/14/2026, 12:18:14Snapshot expired

View network topology RDAP registration

ASN: AS3257
Registration country: Germany
Name: GTT-BACKBONE GTT Communications Inc.
Abbreviation: GTT-BACKBONE
Registration date: 9/20/2002, 10:45:34
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
103.232.16.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.143.184.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.143.84.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.153.224.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.165.105.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.165.199.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.166.76.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.166.87.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/11/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.194.200.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.194.203.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.194.220.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.200.66.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.200.74.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.206.136.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.206.138.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 08:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.206.40.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/29/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.232.192.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.232.194.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.232.216.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.232.219.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.233.247.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/11/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.238.32.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.244.188.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.251.82.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.251.90.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.254.120.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.36.216.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
104.37.30.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
107.149.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
107.149.15.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/11/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
107.149.28.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/11/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
107.158.210.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/29/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
107.158.76.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/25/2026, 08:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
107.158.77.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/29/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
107.182.240.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
108.165.206.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
108.165.74.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
108.186.156.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
108.186.167.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
108.186.179.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
108.186.229.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/11/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
108.186.230.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
109.174.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
109.174.139.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/7/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
109.174.167.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/7/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
109.174.207.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/7/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
109.176.129.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
109.176.168.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
109.176.171.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid
109.176.72.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/14/2026, 08:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: GTT-BACKBONE GTT Communications Inc.
RIR: RIPE NCC
Registration country: Germany
Registration date: 9/20/2002, 10:45:34
Abuse contact: abuse@gtt.net

Snapshot trend

10/14/2026, 12:18:141886 v480 v60 Upstream · 0 Uncertain

10/13/2026, 10:13:351885 v480 v6110 Upstream · 1741 Uncertain

10/12/2026, 06:06:031885 v480 v6109 Upstream · 1748 Uncertain

10/11/2026, 13:56:551893 v480 v6125 Upstream · 1744 Uncertain

10/11/2026, 05:48:061880 v480 v6109 Upstream · 1746 Uncertain

10/10/2026, 04:19:021880 v480 v6112 Upstream · 1747 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap · cha-la-bgp-observations