Data as of Nov 14, 2026
217.117.217.136/29
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 |
|---|---|---|---|---|---|---|
| 217.117.208.0/20 | 4,096 | CZ-CZNET-20040202 | O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZ | ALLOCATED PA | Nov 14, 2017 | abuse@ |
| └ 217.117.217.136/29 | 8 | INTEK | INTEK.CZ, s.r.o., ISP in Chomutov | ASSIGNED PA | Jan 22, 2012 | abuse@ via CZ-CZNET-20040202 |
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 217.117.208.0/20
- Prefix
- 217.117.208.0/20
- Announced by
- AS5610 O2 Czech Republic, a.s.
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- CZ-CZNET-20040202
- Registrant
- O2 Czech Republic, a.s.
- RIR
- RIPE NCC
Routing timeline
Who has announced 217.117.208.0/20
217.117.208.0/20
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Dec 2016 · 9.9 yr
- Origin networks
- 3
- Last change of origin
- Dec 2016
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 217.117.208.0/20 | AS5610 | /20 | RIPE | RPKI valid |
IRR
Route objects on 217.117.208.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS5610 | RIPE | InternetHome Losan prefix | AS5610-MTN | Feb 10, 2017 |
Whois
Registration for this announcement
- Range
- 217.
117. 208. 0/ 20 - Netname
- CZ-CZNET-20040202
- 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
- Nov 14, 2017
- Updated
- Dec 18, 2018
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Feb 2, 2004
- Status
- assigned
Report abuse
Abuse contact
- abuse@
o2. cz - Name
- Abuse-C Role
- Handle
- AR14410-RIPE