Data as of Nov 3, 2026
187.31.39.0/24
Anonymizer · ISP proxyAtiva Telecom LTDA
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin Oct 24, 2026
from AS14571 Oi S.A. - Em Recuperacao Judicial
IPv4 market
Path
Announced by AS268188 since Oct 24, 2026 · 10 days ago
1 · Holder
2 · Leased from
not leased
Operators, sellers and brokers
Proxy providers
| Name | Parent | In 187.31.39.0/24 | /24s |
|---|---|---|---|
| Nox Proxy | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
187.31.39.0/24
From the registry to its use
- Dec 12, 2008AssignedAtiva Telecom LTDA187.31.36.0/22
- Dec 15, 2008– Nov 7, 2025
- Oct 27, 2025– Jul 5, 2026
- Jun 24, 2026– Nov 2, 2026
- Jun 24, 2026– Oct 23, 2026
- Oct 24, 2026– Nov 2, 2026
- todayUsedNox ProxyProxy seller
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Anonymizer addresses | Operator | Proxy exits | RPKI |
|---|---|---|---|---|---|---|
| 187.31.0.0/16 since Jun 2026 | AS14571 | Residential | 1,5362.3%ISP proxy | Proxy providerssold by Nox Proxy | 4 |
Network & registry
IPv4 market
Holder
- Organization
- Not stated by the registry
Origin network
AS268188
BR
- Name
- Ativa Telecom LTDA
- Type
- Internet provider
- Registered
- Feb 11, 2019
- Domain
- ativatelecommg.com.br
- Website
- ativatelecommg.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
- Rotating
- First seen
- Jun 2026
- Current origin since
- Oct 24, 2026 · under a month
- Origin networks
- 2
- Last change of origin
- Oct 24, 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 187.31.39.0/24 | AS268188 | /24 | LACNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 187.31.36.0/22
- Netname
- 559045
- Registrant
- Ativa Telecom LTDA
- Registrant country
- BR
- Organization
- Ativa Telecom LTDA (26500067000189)
- Handle
- 187.31.36.0/22
- Created
- Dec 12, 2008
- RIR
- LACNIC
- Country
- BR
- Delegated
- Dec 12, 2008
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Robson mendes de souza
- Handle
- ROMSO118