Data as of Nov 12, 2026

187.31.28.0/22

512 anonymizer addresses · 50% · ISP proxy

Oi S.A. - Em Recuperacao Judicial

Announcement

187.31.0.0/16

No RPKI

Announced by

AS14571

Type

ISP proxy

50% of it

Recent change

New origin Jun 2026

from AS29987 Sinfony6, LLC

IPv4 market

Path

Announced by AS14571 since Jun 2026 · 5 mo ago

1 · Holder

none on record

2 · Leased from

not leased

3 · Announced by

AS14571 Oi S.A. - Em Recuperacao Judicial

since Jun 2026 · 5 mo ago

4 · Use

Proxy providersnamed Nox Proxy, Oxylabs

ISP proxy

Operators, sellers and brokers

Proxy providers

Name	Parent	In 187.31.28.0/22	/24s
Nox Proxy		51250%	2
Oxylabs	Tesonet	25625%	1

Announcements

More specific

Announcements inside

Prefix	Origin	Type	Operator	RPKI
187.31.30.0/24 since May 2026	AS14571	ISP proxy	Proxy providerssold by Nox Proxy
187.31.31.0/24 since Jun 2026	AS14571	ISP proxy	Proxy providerssold by Nox Proxy, Oxylabs

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
187.31.28.0/22	1,024	558366	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	abuse@oi.net.br

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
ISP proxyanonymizer	512	50%	2
Residential	512	50%	1

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Who has announced 187.31.0.0/16