Data as of Nov 14, 2026
201.20.146.0/24
No anonymizer space · no proxy exits in 30 daysDefferrari Informatica Ltda.
Announcement
this exact prefix
RPKI valid
Announced by
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin Aug 2026
from AS28605 Defferrari Informatica Ltda., after 8 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 201.20.144.0/22 since Sep 2018 | AS28605 | Residential | 19 14 always on |
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS28605
BR
- Name
- Defferrari Informatica Ltda.
- Type
- Internet provider
- Registered
- Jul 26, 2005
- Domain
- dsi.net.br
- Website
- dsi.net.br
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2014
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 201.20.144.0/20 | AS28605 | /24 | LACNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 201.
20. 144. 0/ 20 - Netname
- 61818
- Registrant
- Defferrari Informatica Ltda.
- Registrant country
- BR
- Organization
- Defferrari Informatica Ltda. (94966306000140)
- Handle
- 201.
20. 144. 0/ 20 - Created
- Jul 26, 2005
- RIR
- LACNIC
- Country
- BR
- Delegated
- Jul 26, 2005
- Status
- assigned
Report abuse
Abuse contact
- registro@
registro. defferrari. com. br - Name
- Marco Defferrari
- Handle
- MAD6