LAYER3 INTEL
Get started
Sign in
Data as of Nov 10, 2026

158.58.136.0/21

No anonymizer space · no proxy exits in 30 days

Microsoft Corporation · space held by Teamsystem S.P.A.

Announcement
this exact prefix
RPKI valid
Announced by
AS8075
Type
Hosting
Risk
50 / 100 · Medium

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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
158.58.136.0/212,048IT-TEAMSYSTEM-20111109Teamsystem S.P.A. (ORG-TS350-RIPE) · ITALLOCATED PANov 9, 2011abuse@musvc.com
└ 158.58.136.0/24256MailUpTeamsystem S.P.A. (ORG-TS350-RIPE) · ITASSIGNED PASep 12, 2025abuse@musvc.com
└ 158.58.137.0/24256MailUpTeamsystem S.P.A. (ORG-TS350-RIPE) · ITASSIGNED PASep 12, 2025abuse@musvc.com
└ 158.58.138.0/24256MailUpTeamsystem S.P.A. (ORG-TS350-RIPE) · ITASSIGNED PASep 12, 2025abuse@musvc.com
└ 158.58.139.0/24256MailUpTeamsystem S.P.A. (ORG-TS350-RIPE) · ITASSIGNED PASep 12, 2025abuse@musvc.com
└ 158.58.140.0/24256MailUpTeamsystem S.P.A. (ORG-TS350-RIPE) · ITASSIGNED PASep 12, 2025abuse@musvc.com
└ 158.58.141.0/24256MailUpTeamsystem S.P.A. (ORG-TS350-RIPE) · ITASSIGNED PASep 12, 2025abuse@musvc.com
└ 158.58.142.0/24256MailUpTeamsystem S.P.A. (ORG-TS350-RIPE) · ITASSIGNED PASep 12, 2025abuse@musvc.com
└ 158.58.143.0/24256MailUpTeamsystem S.P.A. (ORG-TS350-RIPE) · ITASSIGNED PASep 12, 2025abuse@musvc.com

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced this prefix

Summary

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