Data as of Nov 9, 2026
217.197.154.0/24
1 residential-proxy exit · 30 daysO2 Czech Republic, a.s.
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Always-on exits
1
100% of its exits
Providers
6
selling exits here
Oct 10, 2026 – Nov 8, 2026
Exits seen per day
154 observations
Proxy providers listing exits
- AnyIP
- FastProxy
- GloryCloud
- LemonBright
- ThunderProxy
- 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 |
|---|---|---|---|---|---|---|
| 217.197.144.0/20 | 4,096 | CZ-CZNET-20041021 | O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZ | ALLOCATED PA | Apr 1, 2025 | abuse@ |
| └ 217.197.154.0/27 | 32 | NWT-NET | unknown | ASSIGNED PA | Dec 13, 2007 | abuse@ via CZ-CZNET-20041021 |
| └ 217.197.154.32/29 | 8 | GAHURA-NET | unknown | ASSIGNED PA | Dec 13, 2007 | abuse@ via CZ-CZNET-20041021 |
| └ 217.197.154.40/29 | 8 | PLUSLINE-INFRA | unknown | ASSIGNED PA | Oct 21, 2010 | abuse@ via CZ-CZNET-20041021 |
| └ 217.197.154.64/26 | 64 | STANEK-NET | unknown | ASSIGNED PA | Jan 11, 2008 | abuse@ via CZ-CZNET-20041021 |
| └ 217.197.154.128/25 | 128 | PLUSLINE-CZ-NET | unknown | ASSIGNED PA | Apr 27, 2006 | abuse@ via CZ-CZNET-20041021 |
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
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 240 | 94% | 5 | |
| Residential | 16 | 6.3% | 1 |
Network & registry
Announced by
Covering announcement 217.197.144.0/20
- Prefix
- 217.197.144.0/20
- Announced by
- AS42908 O2 Czech Republic, a.s.
- Type
- Residential
- Proxy exits
- 5
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- CZ-CZNET-20041021
- Registrant
- O2 Czech Republic, a.s.
- RIR
- RIPE NCC
Origin network
AS42908
CZ
- Name
- O2 Czech Republic, a.s.
- Type
- Internet provider
- Registered
- May 9, 2007
- Domain
- nordictelecom.cz
- Website
- www.nordictelecom.cz/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 217.197.144.0/20
217.197.144.0/20
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Feb 2025 · 1.8 yr
- Origin networks
- 2
- Last change of origin
- Feb 2025
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 217.197.144.0/20 | AS42908 | /20 | RIPE | RPKI valid |
IRR
Route objects on 217.197.144.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS42908 | RIPE | MNT-NORDICTELECOM AS5610-MTN | Apr 1, 2025 |
Whois
Registration for this announcement
- Range
- 217.
197. 144. 0/ 20 - Netname
- CZ-CZNET-20041021
- 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
- Apr 1, 2025
- Updated
- Apr 1, 2025
- Maintainer
- AS5610-MTN
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Oct 21, 2004
- Status
- assigned
Report abuse
Abuse contact
- abuse@
o2. cz - Name
- Abuse-C Role
- Handle
- AR14410-RIPE