Data as of Nov 3, 2026
72.244.44.0/23
256 anonymizer addresses · 50% · ISP proxyGTT Communications Inc. · space held by GTT Americas, LLC
IPv4 market
Path
2 · Leased from
4 · Use
Internet provider
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 72.244.44.0/23 | /24s |
|---|---|---|
| IPXO | 25650% | 1 |
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Leased from | Holder | RPKI |
|---|---|---|---|---|---|
| 72.244.45.0/24 since Aug 2026 | AS3257 | ISP proxy | IP broker IPNetZone, IPXO | GTT Americas, LLC via RCN |
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 |
|---|---|---|---|---|---|---|
| 72.244.0.0/15 | 131,072 | MEGAPATH-BLK-63 | GTT Americas, LLC (GAL-104) · US | Direct Allocation | Mar 22, 2005 | [email protected] |
| └ 72.244.0.0/16 | 65,536 | IPXO-GTT | IPXO LLC (IL-845) · US | Reallocated | Jul 18, 2025 | [email protected] |
| └ 72.244.0.0/16 | 65,536 | NETUTILS | Internet Utilities NA LLC (DCL-577) · US | Reallocated | Jul 30, 2025 | [email protected] |
| └ 72.244.44.0/24 | 256 | NET-72-244-44-0-24 | unknown | — | — | — |
| └ 72.244.45.0/24 | 256 | NET-72-244-45-0-24 | IPNetZone (IPNET-1) · US | Reallocated | Mar 25, 2026 | [email protected] |
| └ 72.244.45.0/24 | 256 | GTT-CUSTOMER | IPNetZone (IPNET-1) · US | Reallocated | Jul 31, 2026 | [email protected] |
| └ 72.244.45.0/24 | 256 | RCN-GTT | RCN (RTSL-6) · US | Reallocated | Sep 25, 2026 | [email protected] |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
512 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 256 | 50% | 1 | |
| ISP proxyanonymizer | 256 | 50% | 1 |
Network & registry
Announced by
Covering announcement 72.244.0.0/15
- Prefix
- 72.244.0.0/15
- Announced by
- AS3257 GTT Communications Inc.
- Type
- Internet provider
- Anonymizer addresses
- none
- Leased from
- IP broker IPXO (part)
- Proxy exits
- 433
- Always-on exits
- 76
- RPKI
- No RPKI
- Netname
- MEGAPATH-BLK-63
- Registrant
- GTT Americas, LLC
- RIR
- ARIN
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 72.244.0.0/15
72.244.0.0/15
Routing history
- Pattern
- Rotating
- First seen
- Sep 2005
- Current origin since
- Apr 2023 · 3.5 yr
- Origin networks
- 2
- Last change of origin
- Apr 2023
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 72.244.0.0/15
- Netname
- MEGAPATH-BLK-63
- 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-72-244-0-0-1
- Parent
- NET-72-0-0-0-0
- Created
- Mar 22, 2005
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 22, 2005
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- GTT Abuse Department
- Phone
- +1-703-442-5500
- Handle
- GAD46-ARIN