Data as of Nov 7, 2026
81.200.50.0/23
6 residential-proxy exits · 30 daysO2 Czech Republic, a.s.
Residential-proxy exits
Proxy exits
6
1.2% of its addresses · 30 days
Spread
2 of 2
/24s with at least one exit
Providers
26
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
307 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 81.200.51.0/24 | 0 | 5 | |
| 81.200.50.0/24 | 0 | 1 |
Proxy providers listing exits
- 2Captcha
- AnyIP
- BirdProxies
- BottingTools
- ByteProxies
- Byteful
- CliProxy
- EnigmaProxy
- FastProxy
- FlashProxy
- GonzoProxy
- IPOasis
- Infatica
- LemonBright
- MangoProxy
- NodeProxy
- NovaProxy
- Proxy-Seller
- ProxyEmpire
- Proxyma
- RainProxy
- Shifter
- ThunderProxy
- VibeProxies
- VitalExclusive
- VitalProxy
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 81.200.48.0/20 since Sep 2006 | AS41046 | Residential | 25 2 always on | O2 Czech Republic, a.s. |
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 |
|---|---|---|---|---|---|---|
| 81.200.48.0/20 | 4,096 | CZ-CZNET-20060601 | O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZ | ALLOCATED PA | Jun 1, 2006 | abuse@ |
| └ 81.200.50.0/23 | 512 | NET-TVTRINEC-C1 | Kabelova televize Trinec | ASSIGNED PA | Mar 28, 2007 | abuse@ via CZ-CZNET-20060601 |
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
Announced by
Covering announcement 81.200.48.0/21
- Prefix
- 81.200.48.0/21
- Announced by
- AS41046 O2 Czech Republic, a.s.
- Type
- Residential
- Proxy exits
- 15
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- CZ-CZNET-20060601
- Registrant
- O2 Czech Republic, a.s.
- RIR
- RIPE NCC
Origin network
AS41046
CZ
- Name
- O2 Czech Republic, a.s.
- Type
- Internet provider
- Registered
- Jun 6, 2006
- Domain
- o2.cz
- Website
- www.nej.cz
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
81.200.48.0/21
Routing history
- Pattern
- Stable
- First seen
- Mar 2011
- Current origin since
- Mar 2011 · 16 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.200.48.0/21 | AS41046 | /21 | RIPE | RPKI valid |
| 81.200.48.0/20 | AS41046 | /20 | RIPE | Too specific |
IRR
Route objects on 81.200.48.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS41046 | RIPE | NEJTV | KTVTRINEC-MNT | Jul 13, 2012 |
Whois
Registration for this announcement
- Range
- 81.
200. 48. 0/ 20 - Netname
- CZ-CZNET-20060601
- Registrant
- O2 Czech Republic, a.s.
- Registrant country
- CZ
- Organization
- O2 Czech Republic, a.s. (ORG-STAN1-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Jun 1, 2006
- Updated
- Jun 20, 2024
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Jun 1, 2006
- Status
- assigned
Report abuse
Abuse contact
- abuse@
o2. cz - Name
- Abuse-C Role
- Handle
- AR14410-RIPE