Data as of Nov 3, 2026
81.201.52.0/22
5 residential-proxy exits · 30 daysFreeTel, s.r.o.
Residential-proxy exits
Proxy exits
5
0.49% of its addresses · 30 days
Spread
4 of 4
/24s with at least one exit
Providers
13
selling exits here
Oct 4, 2026 – Nov 2, 2026
Exits seen per day
52 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 81.201.54.0/24 | 0 | 2 | |
| 81.201.52.0/24 | 0 | 1 | |
| 81.201.53.0/24 | 0 | 1 | |
| 81.201.55.0/24 | 0 | 1 |
Proxy providers listing exits
- Ake.net
- AnyIP
- BottingTools
- Byteful
- Geonode
- InfiniteProxies
- NextProxy
- NovaProxy
- PrivateProxy
- ProxyEmpire
- ProxyGeo
- Shifter
- ThunderProxy
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 |
|---|---|---|---|---|---|---|
| 81.201.48.0/20 | 4,096 | CZ-KLFREE-20060620 | FreeTel, s.r.o. (ORG-SK14-RIPE) · CZ | ALLOCATED PA | Jun 20, 2006 | [email protected] |
| └ 81.201.52.0/22 | 1,024 | KLFREENET | KLFree.net, o.s. (ORG-KLF1-RIPE) | ASSIGNED PA | Jun 24, 2006 | [email protected] |
Network & registry
Announced by
Covering announcement 81.201.48.0/21
- Prefix
- 81.201.48.0/21
- Announced by
- AS8251 FreeTel, s.r.o.
- Type
- Unknown
- Proxy exits
- 14
- Always-on exits
- 2
- RPKI
- RPKI valid
- Netname
- CZ-KLFREE-20060620
- Registrant
- FreeTel, s.r.o.
- RIR
- RIPE NCC
Origin network
AS8251
CZ
- Name
- FreeTel, s.r.o.
- Type
- Internet provider
- Registered
- Jul 17, 2006
- Domain
- nfx.cz
- Website
- www.nfx.cz
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 81.201.48.0/21
81.201.48.0/21
Routing history
- Pattern
- Stable
- First seen
- Oct 2006
- Current origin since
- Oct 2006 · 20 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.201.48.0/21 | AS8251 | /21 | RIPE | RPKI valid |
Whois
Registration for this announcement
- Range
- 81.201.48.0/20
- Netname
- CZ-KLFREE-20060620
- Registrant
- FreeTel, s.r.o.
- Registrant country
- CZ
- Organization
- FreeTel, s.r.o. (ORG-SK14-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Jun 20, 2006
- Updated
- Aug 30, 2017
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Jun 20, 2006
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- NFX z.s.p.o. / FreeTel, s.r.o. / AS 8251 last-resort abuse mailbox
- Handle
- NFXA-RIPE