Data as of Nov 12, 2026
37.1.154.0/23
No anonymizer space · no proxy exits in 30 daysGTT Communications Inc. · space held by GTT - EMEA Ltd.
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 37.1.152.0/21 | 2,048 | UK-EASYNET-20111213 | GTT - EMEA Ltd. (ORG-EA49-RIPE) · GB | ALLOCATED PA | Dec 13, 2011 | abuse@ |
| └ 37.1.154.0/23 | 512 | UK-MDNX-WIRES-DIA | GTT - EMEA Ltd. (ORG-EA49-RIPE) · GB | ASSIGNED PA | May 4, 2012 | abuse@ |
Network & registry
Announced by
Covering announcement 37.1.152.0/21
- Prefix
- 37.1.152.0/21
- Announced by
- AS3257 GTT Communications Inc.
- Type
- Internet provider
- RPKI
- No RPKI
- Netname
- UK-EASYNET-20111213
- Registrant
- GTT - EMEA Ltd.
- RIR
- RIPE NCC
Origin network
AS3257
US
- Name
- GTT Communications Inc.
- Type
- Internet provider
- Registered
- Sep 30, 1994
- Domain
- gtt.net
- Website
- www.gtt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 251
Routing timeline
Who has announced 37.1.152.0/21
37.1.152.0/21
Routing history
- Pattern
- Rotating
- First seen
- Jan 2012
- Current origin since
- Feb 2023 · 3.8 yr
- Origin networks
- 2
- Last change of origin
- Feb 2023
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 37.
1. 152. 0/ 21 - Netname
- UK-EASYNET-20111213
- Registrant
- GTT - EMEA Ltd.
- Registrant country
- GB
- Organization
- GTT - EMEA Ltd. (ORG-EA49-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Dec 13, 2011
- Updated
- Aug 21, 2026
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Dec 13, 2011
- Status
- assigned
Report abuse
Abuse contact
- abuse@
gtt. net - Name
- Abuse-C Role
- Handle
- AR17615-RIPE