Data as of Nov 13, 2026

5.102.53.0/24

1 residential-proxy exit · 30 days

O2 Czech Republic, a.s.

Announcement

5.102.48.0/20

RPKI valid

Announced by

AS42908

Type

Residential

Risk

0 / 100 · Low

Residential-proxy exits

Proxy exits

0.39% of its addresses · 30 days

Providers

selling exits here

Oct 14, 2026 – Nov 12, 2026

Exits seen per day

28 observations

Proxy providers listing exits

AnyIP
IPFly
LemonBright
Oxylabs
VitalExclusive

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
5.102.48.0/20	4,096	CZ-CZNET-20120627	O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZ	ALLOCATED PA	Apr 1, 2025	abuse@o2.cz
└ 5.102.48.0/21	2,048	CZ-NORDICTELECOMREGIONAL-20120627	unknown	ASSIGNED PA	Jun 27, 2012	abuse@o2.cz via CZ-CZNET-20120627

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Who has announced 5.102.48.0/20

5.102.48.0/20

Routing history

Pattern: Stable
First seen: Apr 2013
Current origin since: Mar 2021 · 5.6 yr
Origin networks: 2
Last change of origin: Mar 2021

Recorded history

History

Handoffs: 1

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
5.102.48.0/20	AS42908	/20	RIPE	RPKI valid

IRR

Route objects on 5.102.48.0/20

Origin	Registry	Description	Maintainer	Modified
AS42908	RIPE	CZ-NORDICTELECOMREGIONAL RO 5.102.48.0/20	MNT-NORDICTELECOM AS5610-MTN	Apr 1, 2025