Data as of Nov 4, 2026
93.92.52.0/23
No anonymizer space · no proxy exits in 30 daysO2 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 |
|---|---|---|---|---|---|---|
| 93.92.48.0/21 | 2,048 | CZ-CZNET-20080123 | O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZ | ALLOCATED PA | Apr 1, 2025 | abuse@ |
| └ 93.92.52.0/23 | 512 | CZ-NORDICTELECOMREGIONAL-20080123 | unknown | ASSIGNED PA | Sep 23, 2008 | abuse@ via CZ-CZNET-20080123 |
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 93.92.48.0/21
- Prefix
- 93.92.48.0/21
- Announced by
- AS42908 O2 Czech Republic, a.s.
- Type
- Residential
- Proxy exits
- 3
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- CZ-CZNET-20080123
- 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 93.92.48.0/21
93.92.48.0/21
Routing history
- Pattern
- Rotating
- First seen
- Feb 2008
- Current origin since
- Nov 2024 · 1.9 yr
- Origin networks
- 2
- Last change of origin
- Nov 2024
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 93.92.48.0/21 | AS42908 | /21 | RIPE | RPKI valid |
IRR
Route objects on 93.92.48.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS42908 | RIPE | MNT-NORDICTELECOM AS5610-MTN | Apr 1, 2025 |
Whois
Registration for this announcement
- Range
- 93.
92. 48. 0/ 21 - Netname
- CZ-CZNET-20080123
- 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
- Jan 23, 2008
- Status
- assigned
Report abuse
Abuse contact
- abuse@
o2. cz - Name
- Abuse-C Role
- Handle
- AR14410-RIPE