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Data as of Nov 7, 2026

191.37.228.0/24

No anonymizer space · no proxy exits in 30 days

YZO Telecom Tecnologia Eireli - ME

Announcement

191.37.228.0/23

RPKI valid

Announced by

Type

Residential

Risk

0 / 100 · Low

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Proxy exits	RPKI
191.37.228.0/22 since Sep 2023	AS263374	Residential	139 31 always on
191.37.224.0/21 since Sep 2023	AS263374	Residential	319 56 always on

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Announced by

Covering announcement 191.37.228.0/23

Prefix: 191.37.228.0/23
Announced by: AS263374 YZO Telecom Tecnologia Eireli - ME
Type: Residential
Proxy exits: 127
Always-on exits: 29
RPKI: RPKI valid
Netname: 225378
Registrant: YZO Telecom Tecnologia Eireli - ME
RIR: LACNIC

Registry

Holder

Organization: Not stated by the registry

Origin network

AS263374

BR

Name: YZO Telecom Tecnologia Eireli - ME
Type: Internet provider
Registered: Mar 21, 2014
Domain: yzo.com.br
Website: www.yzo.com.br
Industry: Internet Service Provider (ISP)
Spamhaus ASN-DROP: not listed

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
191.37.224.0/21	AS263374	/24	LACNIC	RPKI valid

IRR

Route objects on 191.37.228.0/23

Origin	Registry	Description	Maintainer	Modified
AS263374	TC	YZO TELECOM TECNOLOGIA EIRELI - ME	MAINT-AS263374	May 11, 2026