Data as of Nov 13, 2026
81.201.52.0/24
1 residential-proxy exit · 30 daysFreeTel, s.r.o.
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
1
selling exits here
Oct 14, 2026 – Nov 12, 2026
Exits seen per day
2 observations
Proxy providers listing exits
- AnyIP
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 | abuse@ |
| └ 81.201.52.0/22 | 1,024 | KLFREENET | KLFree.net, o.s. (ORG-KLF1-RIPE) | ASSIGNED PA | Jun 24, 2006 | abuse@ |
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
- 24
- Always-on exits
- 3
- 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
- abuse@
nfx. cz - Name
- NFX z.s.p.o. / FreeTel, s.r.o. / AS 8251 last-resort abuse mailbox
- Handle
- NFXA-RIPE