Data as of Nov 13, 2026
187.31.36.0/22
256 anonymizer addresses · 25% · ISP proxyOi S.A. - Em Recuperacao Judicial
Announced by
Type
Residential
75% of it
Recent change
New origin Jun 2026
from AS29987 Sinfony6, LLC
Operators, sellers and brokers
Proxy providers
| Name | Parent | In 187.31.36.0/22 | /24s |
|---|---|---|---|
| Nox Proxy | 25625% | 1 |
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Operator | RPKI |
|---|---|---|---|---|
| 187.31.36.0/24 since Oct 24, 2026 | AS268188 | Residential | ||
| 187.31.37.0/24 since Oct 24, 2026 | AS268188 | Residential | ||
| 187.31.38.0/24 since Oct 24, 2026 | AS268188 | Residential | ||
| 187.31.39.0/24 since Oct 24, 2026 | AS268188 | ISP proxy | Proxy providerssold by Nox Proxy |
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 |
|---|---|---|---|---|---|---|
| 187.31.36.0/22 | 1,024 | 559045 | Ativa Telecom LTDA (26500067000189) | allocated | Dec 12, 2008 | robson@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
1,024 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 768 | 75% | 3 | |
| ISP proxyanonymizer | 256 | 25% | 1 |
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
- Anonymizer addresses
- none
- 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