Data as of Nov 10, 2026
158.58.136.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Teamsystem S.P.A.
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 |
|---|---|---|---|---|---|---|
| 158.58.136.0/21 | 2,048 | IT-TEAMSYSTEM-20111109 | Teamsystem S.P.A. (ORG-TS350-RIPE) · IT | ALLOCATED PA | Nov 9, 2011 | abuse@ |
| └ 158.58.136.0/24 | 256 | MailUp | Teamsystem S.P.A. (ORG-TS350-RIPE) · IT | ASSIGNED PA | Sep 12, 2025 | abuse@ |
Network & registry
Announced by
Covering announcement 158.58.136.0/21
- Prefix
- 158.58.136.0/21
- Announced by
- AS8075 Microsoft Corporation
- Type
- Hosting
- RPKI
- RPKI valid
- Netname
- IT-TEAMSYSTEM-20111109
- Registrant
- Teamsystem S.P.A.
- RIR
- RIPE NCC
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 158.58.136.0/21
158.58.136.0/21
Routing history
- Pattern
- Rotating
- First seen
- Sep 2012
- Current origin since
- Dec 2025 · 11 mo
- Origin networks
- 2
- Last change of origin
- Dec 2025
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 158.58.136.0/21 | AS8075 | /24 | RIPE | RPKI valid |
Whois
Registration for this announcement
- Range
- 158.
58. 136. 0/ 21 - Netname
- IT-TEAMSYSTEM-20111109
- Registrant
- Teamsystem S.P.A.
- Registrant country
- IT
- Organization
- Teamsystem S.P.A. (ORG-TS350-RIPE)
- Org country
- IT
- Type
- ALLOCATED PA
- Created
- Nov 9, 2011
- Updated
- Apr 4, 2025
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- IT
- Delegated
- Nov 9, 2011
- Status
- assigned
Report abuse
Abuse contact
- abuse@
musvc. com - Name
- MailUp Abuse Contact
- Handle
- MA16664-RIPE