81.4.168.0/21

Residential-proxy exits

Proxy exits

78

3.8% of its addresses · 30 days

Always-on exits

1

1.3% of its exits

Spread

4 of 8

/24s with at least one exit

Providers

52

selling exits here

Oct 16, 2026 – Nov 14, 2026

Exits seen per day

4.7K observations

/24s with the most always-on exits

/24	Always-on exits	Proxy exits
81.4.168.0/24	1	26
81.4.169.0/24	0	21
81.4.170.0/24	0	17
81.4.171.0/24	0	14

Proxy providers listing exits

711Proxy
Ake.net
AnyIP
B2Proxy
BirdProxies
BottingTools
ByteProxies
Byteful
CatProxies
CliProxy
DataImpulse
Decodo
EVOPROXY
EZProxies
EnigmaProxy
FastProxy
FlashProxy
Geonode
GloryCloud
IPFly
Infatica
KindProxy
KocerRoxy
LemonBright
MangoProxy
NiuProxy
NovaProxy
Novada
Oxylabs
PrivateByte
Proxiware
Proxmint
Proxy-Seller
Proxy302
Proxy4U
ProxyEmpire
ProxyGeo
ProxyHat
ProxyWing
Proxying
Proxyma
PuraRoute
RapidProxy
RoamProxy
Shifter
StrikeProxy
SwiftProxy
Thordata
ThunderProxy
VantageProxies
VitalExclusive
YumiProxy

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Proxy exits	Holder
81.4.160.0/20 since Mar 2008	AS6866	Residential	123 3 always on	Cyprus Telecommunications Authority
81.4.160.0/19 since Feb 2018	AS6866	Residential	181 3 always on	Cyprus Telecommunications Authority
81.4.128.0/18 since Sep 2005	AS6866	Residential	306 8 always on	Cyprus Telecommunications Authority

More specific

Announcements inside

Prefix	Origin	Type	Holder	RPKI
81.4.174.0/24 since Sep 2019	AS6866	Mobile	Cyprus Telecommunications Authority

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
81.4.128.0/18	16,384	CY-CYTANET-20020424	Cyprus Telecommunications Authority (ORG-CTA2-RIPE) · CY	ALLOCATED PA	Apr 24, 2002	abuse@cytanet.com.cy
└ 81.4.174.0/24	256	CYTAMOBILE	Cyprus Telecommunications Authority (ORG-CTA2-RIPE) · CY	ASSIGNED PA	Mar 18, 2004	abuse@cytanet.com.cy
└ 81.4.175.0/24	256	CYTANET	Internet Service Provider	LIR-PARTITIONED PA	Mar 12, 2010	abuse@cytanet.com.cy via CY-CYTANET-20020424

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

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

2,048 addresses

Type	Addresses	Share	Ranges
Residential	1,792	88%	2
Mobile	256	13%	1

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern: Stable
First seen: May 2005
Current origin since: May 2005 · 22 yr
Origin networks: 1

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
81.4.168.0/21	AS6866	/21	RIPE	RPKI valid
81.4.160.0/20	AS6866	/20	RIPE	Too specific
81.4.160.0/19	AS6866	/19	RIPE	Too specific
81.4.128.0/18	AS6866	/24	RIPE	RPKI valid

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS6866	RIPE	CYTANET - Cyprus Telecommunications Authority	CYTANET-NOC	Sep 29, 2003

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
81.4.168.0/22	AS6866	RADB	Proxy-registered route object	MAINT-AS3491	Mar 28, 2025
81.4.173.0/24	AS6866	RADB	Proxy-registered route object	MAINT-AS3491	Mar 28, 2025