Data as of Nov 3, 2026
187.44.37.0/24
No anonymizer space · no proxy exits in 30 daysMaster S/A
Announced by
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin May 2026
from AS28202 Master S/A, after 5 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 187.44.0.0/18 since Jan 2017 | AS28202 | Residential | 3,765 40 always on |
Network & registry
Announced by
Covering announcement 187.44.36.0/22
- Prefix
- 187.44.36.0/22
- Announced by
- AS28202 Master S/A
- Type
- Residential
- Proxy exits
- 252
- Always-on exits
- 2
- RPKI
- RPKI valid
- Netname
- 127757
- Registrant
- Master S/A
- RIR
- LACNIC
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
187.44.36.0/22
Routing history
- Pattern
- Stable
- First seen
- Mar 2020
- Current origin since
- May 2026 · 6 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 187.44.0.0/18 | AS28202 | /25 | LACNIC | RPKI valid |
IRR
Route objects on 187.44.36.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS28202 | RADB | RBC - Rede Brasileira de Comunicacao S/A | MAINT-AS28202 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 187.44.0.0/18
- Netname
- 127757
- Registrant
- Master S/A
- Registrant country
- BR
- Organization
- Master S/A (01766744000184)
- Handle
- 187.44.0.0/18
- Created
- Jan 26, 2009
- RIR
- LACNIC
- Country
- BR
- Delegated
- Jan 26, 2009
- Status
- assigned