Data as of Nov 3, 2026
74.0.159.0/24
Anonymizer · ISP proxyGTT Communications Inc. · space held by GTT Americas, LLC
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin Aug 2026
from AS18566 GTT Americas, LLC, after 2.5 years unannounced
registry: reallocated to RCN by GTT Americas, LLC, Sep 25, 2026
IPv4 market
Path
Reallocated to RCN · Sep 25, 2026 · 6 wk ago · by GTT Americas, LLC
2 · Leased from
4 · Use
ISP proxy
anonymizer space, operator not named
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 74.0.0.0/15 since Apr 2023 | AS3257 | Internet provider | IP broker IPXO (part) | 159 54 always on | GTT Americas, LLC |
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 |
|---|---|---|---|---|---|---|
| 74.0.0.0 - 74.3.127.255 | 229,376 | MEGAPATH-BLK-64-65-66 | GTT Americas, LLC (GAL-104) · US | Direct Allocation | Dec 20, 2005 | [email protected] |
| └ 74.0.152.0/21 | 2,048 | GTT-CUSTOMER | IPNetZone (IPNET-1) · US | Reallocated | Jul 31, 2026 | [email protected] |
| └ 74.0.152.0/21 | 2,048 | RCN-GTT | RCN (RTSL-6) · US | Reallocated | Sep 25, 2026 | [email protected] |
Network & registry
Announced by
Covering announcement 74.0.152.0/21
- Prefix
- 74.0.152.0/21
- Announced by
- AS3257 GTT Communications Inc.
- Type
- ISP proxy
- Anonymizer addresses
- all
- Leased from
- IP broker IPNetZone
- RPKI
- RPKI valid
- Netname
- RCN-GTT
- Registrant
- RCN
- RIR
- ARIN
IPv4 market
Holder
- Organization
- GTT Americas, LLC
- Handle
- GAL-104
- Range
- 74.0.0.0 - 74.3.127.255
- Registration type
- Direct Allocation
- Record created
- Dec 20, 2005
- Reallocated to
- RCN (RTSL-6)
- Reallocated range
- 74.0.152.0/21
- Reallocated
- Sep 25, 2026
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
Covering aggregate above, the prefix's own history below
74.0.152.0/21
Routing history
- Pattern
- Reactivated
- First seen
- Mar 2006
- Current origin since
- Aug 2026 · 2 mo
- Origin networks
- 2
- Last change of origin
- Aug 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 74.0.152.0/21 | AS3257 | /24 | ARIN | RPKI valid |
| 74.0.152.0/21 | AS6079 | /24 | ARIN | Another network |
IRR
Route objects on 74.0.152.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3257 | ARIN | GTT Americas, LLC | MNT-GAL-104 | Jul 31, 2026 |
Whois
Registration for this announcement
- Range
- 74.0.152.0/21
- Netname
- RCN-GTT
- Registrant
- RCN
- Organization
- RCN (RTSL-6)
- Org address
- 650 College Road East, Princeton, NJ, 08540
- Org country
- US
- Type
- Reallocated
- Handle
- NET-74-0-152-0-2
- Parent
- NET-74-0-152-0-1
- Created
- Sep 25, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 20, 2005
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- RCN Abuse Department
- Phone
- +1-888-972-6622
- Handle
- RAD75-ARIN