Data as of Nov 3, 2026
191.53.76.0/22
No anonymizer space · no proxy exits in 30 daysMaster S/A
Announcement
this exact prefix
RPKI valid
Announced by
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin May 2026
from AS28202 Master S/A, after 5.2 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 191.53.72.0/21 since May 2026 | AS28202 | Residential | ||
| 191.53.0.0/16 since Jan 2017 | AS28202 | Residential | 9,292 165 always on |
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS28202
BR
- Name
- Master S/A
- Type
- Internet provider
- Registered
- Apr 9, 2008
- Domain
- soumaster.com.br
- Website
- www.soumaster.com.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
- Mar 2017
- Current origin since
- May 2026 · 6 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 191.53.0.0/16 | AS28202 | /25 | LACNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS28202 | RADB | RBC - Rede Brasileira de Comunicacao S/A | MAINT-AS28202 | Nov 13, 2023 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 191.53.76.0/24 | AS28202 | RADB | RBC - Rede Brasileira de Comunicacao S/A | MAINT-AS28202 | Nov 13, 2023 |
| 191.53.77.0/24 | AS28202 | RADB | RBC - Rede Brasileira de Comunicacao S/A | MAINT-AS28202 | Nov 13, 2023 |
| 191.53.78.0/24 | AS28202 | RADB | RBC - Rede Brasileira de Comunicacao S/A | MAINT-AS28202 | Nov 13, 2023 |
| 191.53.79.0/24 | AS28202 | RADB | RBC - Rede Brasileira de Comunicacao S/A | MAINT-AS28202 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 191.53.0.0/16
- Netname
- 227148
- Registrant
- Master S/A
- Registrant country
- BR
- Organization
- Master S/A (01766744000184)
- Handle
- 191.53.0.0/16
- Created
- Apr 9, 2014
- RIR
- LACNIC
- Country
- BR
- Delegated
- Apr 9, 2014
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Administrativo MasterCabo
- Handle
- ADMAS5