Data as of Nov 10, 2026
64.138.4.2/31
No anonymizer space · no proxy exits in 30 daysMasergy Communications, Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 64.138.0.0/17 since May 2005 | AS19855 | Internet provider | 1 | Masergy Communications, Inc. |
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 |
|---|---|---|---|---|---|---|
| 64. | 49,152 | MSGY-BLK2 | Masergy Communications, Inc. (MSRG) · US | Direct Allocation | Aug 3, 2000 | abuse@ |
| └ 64.138.4.2/31 | 2 | MB2601129 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 64.138.4.0/23
- Prefix
- 64.138.4.0/23
- Announced by
- AS19855 Masergy Communications, Inc.
- Type
- Internet provider
- RPKI
- No RPKI
- Netname
- MSGY-BLK2
- Registrant
- Masergy Communications, Inc.
- RIR
- ARIN
Origin network
AS19855
US
- Name
- Masergy Communications, Inc.
- Type
- Internet provider
- Registered
- Feb 21, 2001
- Domain
- masergy.com
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
64.138.4.0/23
Routing history
- Pattern
- Stable
- First seen
- Jan 2018
- Current origin since
- Jan 2018 · 8.9 yr
- Origin networks
- 1
IRR
Route objects on 64.138.4.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS19855 | ARIN | Masergy SNG1 | MNT-MSRG | May 10, 2022 |
Whois
Registration for this announcement
- Range
- 64.
138. 0. 0 - 64. 138. 191. 255 - Netname
- MSGY-BLK2
- Registrant
- Masergy Communications, Inc.
- Organization
- Masergy Communications, Inc. (MSRG)
- Org address
- 7900 Windrose Ave, Plano, TX, 75024
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-64-138-0-0-1
- Parent
- NET-64-0-0-0-0
- Created
- Aug 3, 2000
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 3, 2000
- Status
- assigned
Report abuse
Abuse contact
- abuse@
masergy. com - Name
- Masergy-Abuse
- Phone
- +1-866-885-5558
- Handle
- MASER1-ARIN