Data as of Nov 11, 2026
187.73.131.0/24
No anonymizer space · no proxy exits in 30 daysITIBR - Instituto de Tecnologia Informacao Brasil
Network & registry
Announced by
Covering announcement 187.73.128.0/21
- Prefix
- 187.73.128.0/21
- Announced by
- AS28576 ITIBR - Instituto de Tecnologia Informacao Brasil
- Type
- Business
- RPKI
- RPKI valid
- Netname
- 133520
- Registrant
- ITIBR - Instituto de Tecnologia Informacao Brasil
- RIR
- LACNIC
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS28576
BR
- Name
- ITIBR - Instituto de Tecnologia Informacao Brasil
- Type
- Education
- Registered
- Apr 6, 2004
- Domain
- itibr.com.br
- Website
- www.itibr.com.br
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 187.73.128.0/21
187.73.128.0/21
Routing history
- Pattern
- Stable
- First seen
- Jan 2017
- Current origin since
- Jan 2017 · 9.8 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 187.73.128.0/21 | AS28576 | /24 | LACNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 187.
73. 128. 0/ 20 - Netname
- 133520
- Registrant
- ITIBR - Instituto de Tecnologia Informacao Brasil
- Registrant country
- BR
- Organization
- ITIBR - Instituto de Tecnologia Informacao Brasil (01915785000195)
- Handle
- 187.
73. 128. 0/ 20 - Created
- Jul 20, 2009
- RIR
- LACNIC
- Country
- BR
- Delegated
- Jul 20, 2009
- Status
- assigned