Data as of Nov 6, 2026
204.139.8.0/21
No anonymizer space · no proxy exits in 30 daysGTT Communications Inc. · space held by GTT Americas, LLC
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 204.139.12.0/24 since May 2026 | AS3257 | Unknown | GTT Americas, LLC via Macarne.com | |
| 204.139.13.0/24 since May 2026 | AS3257 | Unknown | GTT Americas, LLC via Macarne.com | |
| 204.139.14.0/24 since May 2026 | AS3257 | Unknown | GTT Americas, LLC via Macarne.com | |
| 204.139.15.0/24 since May 2026 | AS3257 | Unknown | GTT Americas, LLC via Macarne.com |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 204.139.8.0/21 | 2,048 | MEGAPATH-BLK-25 | GTT Americas, LLC (GAL-104) · US | Direct Allocation | Sep 1, 1994 | abuse@ |
| └ 204.139.12.0/22 | 1,024 | MACARNE-AMS | Macarne.com (ML-1435) · US | Reallocated | Nov 22, 2024 | noc@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
2,048 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 1,024 | 50% | 1 | |
| Unknown | 1,024 | 50% | 4 |
Network & registry
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
- 244
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Jan 2024 · 2.8 yr
- Origin networks
- 3
- Last change of origin
- Jan 2024
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.139.8.0/21 | AS3257 | /24 | ARIN | RPKI valid |
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 204.139.12.0/22 | AS64289 | ARIN | Geofeed: https://geofeeds.macarne.com/macarne-rfc8805.csv | MNT-ML-1435 | Nov 22, 2024 |
Whois
Registration for this announcement
- Range
- 204.
139. 8. 0/ 21 - Netname
- MEGAPATH-BLK-25
- Registrant
- GTT Americas, LLC
- Organization
- GTT Americas, LLC (GAL-104)
- Org address
- 4201 Wilson Blvd -Suite 504, Arlington, VA, 22203
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-204-139-8-0-1
- Parent
- NET-204-0-0-0-0
- Created
- Sep 1, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 1, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
gtt. net - Name
- GTT Abuse Department
- Phone
- +1-703-442-5500
- Handle
- GAD46-ARIN