Data as of Nov 9, 2026
198.186.138.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by The TCW Group, Inc.
Network & registry
Origin network
AS8075
US
- Name
- Microsoft Corporation
- Type
- Hosting
- Registered
- Mar 31, 1997
- Domain
- microsoft.com
- Website
- www.microsoft.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- May 2005
- Current origin since
- Jan 2026 · 9 mo
- Origin networks
- 4
- Last change of origin
- Jan 2026
Recorded history
History
- Handoffs
- 3
Whois
Registration for this announcement
- Range
- 198.
186. 137. 0 - 198. 186. 138. 255 - Netname
- NETBLK-TCW
- Registrant
- The TCW Group, Inc.
- Organization
- The TCW Group, Inc. (TG-193)
- Org address
- 515 S. Flower Street, Los Angeles, CA, 90071
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-198-186-137-0-1
- Parent
- NET-198-0-0-0-0
- Created
- Sep 14, 1993
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 14, 1993
- Status
- assigned
Report abuse
Abuse contact
- es-network@
tcw. com - Name
- es-network
- Phone
- +1-213-244-0208
- Handle
- ESNET-ARIN