Data as of Nov 6, 2026
199.27.231.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Telesign Corp.
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 |
|---|---|---|---|---|---|---|
| 199.27.228.0/22 | 1,024 | TELESIGN-COM | Telesign Corp. (TELES-25) · US | Direct Allocation | Sep 2, 2010 | it. |
| └ 199.27.231.0/24 | 256 | TLS-US-SOUTH-CENTRAL | Microsoft Corporation (C11293105) · US | Reassigned | Jul 24, 2025 | it. via TELESIGN-COM |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- Telesign Corp.
- Handle
- TELES-25
- Range
- 199.
27. 228. 0/ 22 - Registration type
- Direct Allocation
- Record created
- Sep 2, 2010
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
- Rotating
- First seen
- Jul 2011
- Current origin since
- Jul 2025 · 1.3 yr
- Origin networks
- 2
- Last change of origin
- Jul 2025
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 199.
27. 231. 0/ 24 - Netname
- TLS-US-SOUTH-CENTRAL
- Registrant
- Microsoft Corporation
- Organization
- Microsoft Corporation (C11293105)
- Type
- Reassigned
- Handle
- NET-199-27-231-0-1
- Parent
- NET-199-27-228-0-1
- Created
- Jul 24, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 2, 2010
- Status
- assigned
Report abuse
Abuse contact
- it.
operations@ telesign. com - Name
- Network Operations Center
- Phone
- +1-310-740-9700
- Handle
- NOC11345-ARIN