Data as of Nov 10, 2026
88.100.78.0/24
No anonymizer space · no proxy exits in 30 daysO2 Czech Republic, a.s.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 88.100.0.0/14 since Nov 2005 | AS5610 | Residential | 1,722 135 always on | O2 Czech Republic, a.s. |
Network & registry
Announced by
Covering announcement 88.100.0.0/15
- Prefix
- 88.100.0.0/15
- Announced by
- AS5610 O2 Czech Republic, a.s.
- Type
- Residential
- Proxy exits
- 974
- Always-on exits
- 81
- RPKI
- RPKI valid
- Netname
- CZ-CZNET-20051004
- Registrant
- O2 Czech Republic, a.s.
- RIR
- RIPE NCC
Routing timeline
Covering aggregate above, the prefix's own history below
88.100.0.0/15
Routing history
- Pattern
- Stable
- First seen
- Mar 2009
- Current origin since
- Mar 2009 · 18 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 88.100.0.0/15 | AS5610 | /15 | RIPE | RPKI valid |
| 88.100.0.0/14 | AS5610 | /14 | RIPE | Too specific |
IRR
Route objects on 88.100.0.0/15
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS5610 | RIPE | CZ.CZNET | AS5610-MTN | Dec 8, 2010 |
Whois
Registration for this announcement
- Range
- 88.
100. 0. 0/ 14 - Netname
- CZ-CZNET-20051004
- 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
- Oct 4, 2005
- Updated
- Dec 18, 2018
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Oct 4, 2005
- Status
- assigned
Report abuse
Abuse contact
- abuse@
o2. cz - Name
- Abuse-C Role
- Handle
- AR14410-RIPE