Data as of Nov 9, 2026
177.66.51.0/24
No anonymizer space · no proxy exits in 30 daysSempre Telecomunicacoes LTDA
Announcement
this exact prefix
RPKI valid
Announced by
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin Jul 2026
from AS28198 Sempre Telecomunicacoes LTDA, after 3.4 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 177.66.48.0/22 since Oct 2021 | AS28198 | Residential | 512 184 always on | |
| 177.66.48.0/21 since Jul 2021 | AS28198 | Residential | 514 184 always on |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 177.66.48.0/21 | 2,048 | 405344 | Sempre Telecomunicacoes LTDA (24605227000129) | allocated | Jun 6, 2011 | soc@ |
Network & registry
Origin network
AS28198
BR
- Name
- Sempre Telecomunicacoes LTDA
- Type
- Internet provider
- Registered
- Apr 2, 2008
- Domain
- sempreinternet.com.br
- Website
- sempreinternet.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
- Sep 2012
- Current origin since
- Jul 2026 · 4 mo
- Origin networks
- 3
- Last change of origin
- Jul 2021
Recorded history
History
- Handoffs
- 3
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 177.66.48.0/21 | AS28198 | /25 | LACNIC | RPKI valid |
Whois
Registration for this announcement
177.66.51.0/24 spans several registrations: 1 records are listed under Registrations.
- RIR
- LACNIC
- Country
- BR
- Delegated
- Jun 6, 2011
- Status
- assigned