Data as of Nov 9, 2026
138.185.228.0/24
No anonymizer space · no proxy exits in 30 daysUniversidade Federal de Minas Gerais
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Sep 28, 2026
from AS47065 USC / UFMG PEERING Research Testbed
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 |
|---|---|---|---|---|---|---|
| 138.185.228.0/22 | 1,024 | 258225 | Universidade Federal de Minas Gerais (17217985000457) | assigned | Jul 7, 2015 | noc@ |
Network & registry
Origin network
AS61574
BR
- Name
- Universidade Federal de Minas Gerais
- Type
- Education
- Registered
- Jul 7, 2015
- Domain
- columbia.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
latest 12 of 17 stints
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jun 2016
- Current origin since
- Sep 28, 2026 · 1 mo
- Origin networks
- 2
- Last change of origin
- Sep 28, 2026
Recorded history
History
- Stints on record
- 17
- Handoffs
- 7
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 138.185.228.0/23 | AS61574 | /24 | LACNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS61574 | RADB | Columbia/UFMG PEERING Research Testbed | MAINT-PEERT | Apr 26, 2024 |
Whois
Registration for this announcement
138.185.228.0/24 spans several registrations: 1 records are listed under Registrations.
- RIR
- LACNIC
- Country
- BR
- Delegated
- Jul 7, 2015
- Status
- assigned