Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.
| ASN | 5610 |
|---|
| Name | O2-CZECH-REPUBLIC |
|---|
| Organization | O2 Czech Republic, a.s. |
|---|
| Country | Czechia 
|
|---|
| Registry | RIPE NCC |
|---|
| IPv4 addresses | 2,255,104 |
|---|
| IPv6 /64 networks | 1.5 x 235 |
|---|
| Prefixes | 73 |
|---|
IPv4 addresses
- showing the first 20 of 69 networks
| Network |
Location |
Addresses |
| 109.80.0.0/15 |
O2 Czech Republic, a.s. |
Prague (Praha 4) |
131,072 |
| 109.81.208.0/24 |
Cz.cznet |
Prague (Praha 4) |
256 |
| 109.81.209.0/24 |
Cz.cznet |
Olomouc |
256 |
| 109.81.210.0/24 |
Cz.cznet |
Prague (Praha 4) |
256 |
| 109.81.211.0/24 |
Cz.cznet |
Prague (Praha 4) |
256 |
| 151.236.224.0/20 |
Telefonica O2 Slovakia s.r.o. |
 Bratislava (Petržalka) |
4,096 |
| 160.218.0.0/16 |
Eurotel Praha |
Prague (Praha 4) |
65,536 |
| 160.218.13.0/24 |
Eurotel Praha |
Prague (Praha 4) |
256 |
| 185.134.61.0/24 |
O2 Czech Republic, a.s. |
Prague |
256 |
| 185.143.112.0/22 |
O2 Czech Republic, a.s. |
Brno |
1,024 |
| 185.250.72.0/22 |
O2 Czech Republic, a.s. |
Praha 8 |
1,024 |
| 185.61.228.0/22 |
Cz.cznet |
Prague (Praha 4) |
1,024 |
| 193.17.13.0/24 |
O2 Czech Republic, a.s. |
Prague |
256 |
| 193.245.32.0/21 |
CSOB via ComSource |
Prague |
2,048 |
| 193.245.32.0/22 |
CSOB via ComSource |
Prague |
1,024 |
| 193.245.36.0/22 |
CSOB via ComSource |
Prague |
1,024 |
| 194.165.47.0/24 |
UxNet |
Prague |
256 |
| 194.165.57.0/24 |
Halens |
Hradec Králové (Březhrad) |
256 |
| 194.228.0.0/16 |
Cz.cznet |
Prague (Praha 4) |
65,536 |
| 194.228.0.0/17 |
Cz.cznet |
Prague (Praha 4) |
32,768 |
IPv6 addresses