Data as of Nov 12, 2026
187.31.136.0/22
No anonymizer space · no proxy exits in 30 daysOi S.A. - Em Recuperacao Judicial
Announced by
Type
Residential
Recent change
New origin Jun 2026
from AS29987 Sinfony6, LLC
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | RPKI |
|---|---|---|---|
| 187.31.136.0/24 since Oct 22, 2026 | AS268188 | Residential | |
| 187.31.137.0/24 since Oct 22, 2026 | AS268188 | Residential | |
| 187.31.138.0/24 since Oct 22, 2026 | AS268188 | Residential | |
| 187.31.139.0/24 since Oct 22, 2026 | AS268188 | Residential |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 187.31.136.0/22 | 1,024 | 559065 | Ativa Telecom LTDA (26500067000189) | allocated | Dec 12, 2008 | robson@ |
Network & registry
Announced by
Covering announcement 187.31.0.0/16
- Prefix
- 187.31.0.0/16
- Announced by
- AS14571 Oi S.A. - Em Recuperacao Judicial
- Type
- Residential
- Proxy exits
- 7
- RPKI
- No RPKI
- RIR
- LACNIC
Origin network
AS14571
BR
- Name
- Oi S.A. - Em Recuperacao Judicial
- Type
- Internet provider
- Registered
- Jan 13, 2000
- Domain
- oi.com.br
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 187.31.0.0/16
187.31.0.0/16
Routing history
- Pattern
- Rotating
- First seen
- Dec 2008
- Current origin since
- Jun 2026 · 5 mo
- Origin networks
- 2
- Last change of origin
- Jun 2026
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
187.31.0.0/16 spans several registrations: 38 records are listed under Registrations.
- RIR
- LACNIC
- Country
- BR
- Delegated
- Dec 12, 2008
- Status
- assigned