Data as of Nov 13, 2026
191.37.79.0/24
No anonymizer space · no proxy exits in 30 daysCNT Fiber
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 191.37.78.0/23 since Oct 2019 | AS263356 | Residential | 14 | |
| 191.37.76.0/22 since Oct 2019 | AS263356 | Residential | 130 27 always on | |
| 191.37.72.0/21 since Oct 2019 | AS263356 | Residential | 438 86 always on |
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS263356
BR
- Name
- CNT Fiber
- Type
- Internet provider
- Registered
- Mar 18, 2014
- Domain
- cntfiber.com.br
- Website
- www.cntfiber.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
- Aug 2015
- Current origin since
- Sep 2016 · 10 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 191.37.72.0/21 | AS263356 | /24 | LACNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS263356 | RADB | CLARO S.A. Customer | MAINT-AS4230 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 191.
37. 72. 0/ 21 - Netname
- 225018
- Registrant
- CNT Fiber
- Registrant country
- BR
- Organization
- CNT Fiber (08892029000137)
- Handle
- 191.
37. 72. 0/ 21 - Created
- Mar 18, 2014
- RIR
- LACNIC
- Country
- BR
- Delegated
- Mar 18, 2014
- Status
- assigned
Report abuse
Abuse contact
- diretoria@
cntfiber. com. br - Name
- Conecta Net Informatica Ltda
- Handle
- CNILT14