Data as of Nov 7, 2026
91.191.64.0/18
No anonymizer space · no proxy exits in 30 daysO2 Czech Republic, a.s. · space held by CETIN Networks, s.r.o.
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 91.191.69.0/24 since Nov 2019 | AS28952 | Business | CETIN Networks, s.r.o. via O2 Slovakia, s.r.o. | |
| 91.191.80.0/22 since Nov 2019 | AS28952 | Business | CETIN Networks, s.r.o. via O2 Slovakia, s.r.o. |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 91.191.64.0/18 | 16,384 | SK-O2N-20061227 | CETIN Networks, s.r.o. (ORG-ONS12-RIPE) · SK | ALLOCATED PA | Dec 27, 2006 | abuse@ |
| └ 91.191.64.0/19 | 8,192 | SK-O2SK | O2 Slovakia, s.r.o. (ORG-TOSS1-RIPE) · SK | LIR-PARTITIONED PA | Jun 17, 2019 | abuse@ |
| └ 91. | 1,280 | O2SK-NET-20180523-01 | O2 Slovakia, s.r.o. (ORG-TOSS1-RIPE) · SK | ASSIGNED PA | May 23, 2018 | abuse@ |
| └ 91.191.69.0/24 | 256 | SK-O2-STATIC-POOL-20180523-01 | O2 Slovakia, s.r.o. (ORG-TOSS1-RIPE) · SK | ASSIGNED PA | May 23, 2018 | abuse@ |
| └ 91. | 2,560 | O2SK-NET-20180523-02 | O2 Slovakia, s.r.o. (ORG-TOSS1-RIPE) · SK | ASSIGNED PA | May 23, 2018 | abuse@ |
| └ 91.191.80.0/22 | 1,024 | SK-O2-STATIC-POOL-20180523-02 | O2 Slovakia, s.r.o. (ORG-TOSS1-RIPE) · SK | ASSIGNED PA | May 23, 2018 | abuse@ |
| └ 91. | 3,072 | O2SK-NET-20180523-03 | O2 Slovakia, s.r.o. (ORG-TOSS1-RIPE) · SK | ASSIGNED PA | May 23, 2018 | abuse@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
16,384 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 15,104 | 92% | 3 | |
| Business | 1,280 | 7.8% | 2 |
Network & registry
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jan 2007
- Current origin since
- Jun 2015 · 11 yr
- Origin networks
- 2
- Last change of origin
- Jun 2019
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 91.191.64.0/18 | AS5610 | /18 | RIPE | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS5610 | RIPE | CZ.CZNET | AS5610-MTN O2SK-MNT | Sep 24, 2019 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 91.191.64.0/19 | AS5610 | RIPE | CZ.CZNET | AS5610-MTN O2SK-MNT | Sep 24, 2019 |
| 91.191.96.0/19 | AS28952 | RIPE | O2.SK | O2SK-MNT | Jun 19, 2019 |
Whois
Registration for this announcement
- Range
- 91.
191. 64. 0/ 18 - Netname
- SK-O2N-20061227
- Registrant
- CETIN Networks, s.r.o.
- Registrant country
- SK
- Organization
- CETIN Networks, s.r.o. (ORG-ONS12-RIPE)
- Org country
- SK
- Type
- ALLOCATED PA
- Created
- Dec 27, 2006
- Updated
- May 5, 2023
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- SK
- Delegated
- Dec 27, 2006
- Status
- assigned
Report abuse
Abuse contact
- abuse@
o2bs. sk - Name
- Abuse-C Role
- Handle
- AR70240-RIPE