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General Information
Name:
O2 Czech Republic, A.S.
Domain:
o2.cz
Country:
CZ
Type:
isp
Registry:
RIPE_NCC
Prefix Counts
IPv4 Count:
1,999,616
IPv6 Count:
950,739,159,096,991,665,751,702,110,208
IPv4 Prefixes
| CIDR | Country | Network Name | Organization | Registry | Status | Size |
|---|---|---|---|---|---|---|
| 5.23.39.0/24 | IT | IT-HELPDESKGIGROUP-20120504 | Gi Group S.P.A. | RIPE_NCC | ALLOCATED PA | 256 |
| 37.188.128.0/17 | CZ | EUROTEL-8 | O2 Czech Republic, A.S. | RIPE_NCC | ASSIGNED PA | 32,768 |
| 80.188.0.0/17 | CZ | CZ-CZNET-20020613 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 32,768 |
| 80.188.40.0/24 | CZ | MWARDMANUFACTURINGSRO | KOROZLUKY 1 | RIPE_NCC | ASSIGNED PA | 256 |
| 80.188.128.0/17 | CZ | CZ-CZNET-20020613 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 32,768 |
| 80.188.222.0/24 | CZ | ZACEKMILAN | DUKELSKYCHHRDINU | RIPE_NCC | ASSIGNED PA | 256 |
| 81.90.160.0/20 | CZ | CZ-TERMSNET | TERMSnet | RIPE_NCC | ASSIGNED PA | 4,096 |
| 81.90.168.0/21 | CZ | ELSATNET-CZ | Elsat Spol. S R.O. | RIPE_NCC | ASSIGNED PA | 2,048 |
| 81.90.168.0/24 | CZ | ELSATNET-CZ | Elsat Spol. S R.O. | RIPE_NCC | ASSIGNED PA | 256 |
| 81.90.170.0/24 | CZ | ELSATNET-CZ | Elsat Spol. S R.O. | RIPE_NCC | ASSIGNED PA | 256 |
| 81.90.173.0/24 | CZ | ELSATNET-CZ | Elsat Spol. S R.O. | RIPE_NCC | ASSIGNED PA | 256 |
| 83.69.32.0/19 | CZ | LOSAN-NET | Losan Internet S.R.O. | RIPE_NCC | ASSIGNED PA | 8,192 |
| 83.208.0.0/18 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 16,384 |
| 83.208.0.0/16 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 65,536 |
| 83.208.64.0/18 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 16,384 |
| 83.208.128.0/19 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 8,192 |
| 83.208.220.0/22 | CZ | CZ-CZNET-20040302 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 1,024 |
| 85.70.0.0/17 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 32,768 |
| 85.70.128.0/17 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 32,768 |
| 85.71.0.0/16 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 65,536 |
| 85.71.224.0/19 | CZ | CZ-CZNET-20041102 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 8,192 |
| 85.160.0.0/15 | CZ | EUROTEL-2 | Address Block # 2 of Eurotel Praha | RIPE_NCC | ASSIGNED PA | 131,072 |
| 85.193.0.0/18 | CZ | CZ-CZNET-20041216 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 16,384 |
| 88.83.160.0/19 | CZ | CZ-TERMSNET | Termsnet - Core Network & Backbone P2p Lines | RIPE_NCC | ASSIGNED PA | 8,192 |
| 88.83.175.0/24 | CZ | CZ-CZNET-20060109 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 256 |
| 88.100.0.0/15 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 131,072 |
| 88.100.0.0/14 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 262,144 |
| 88.102.0.0/16 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 65,536 |
| 90.176.32.0/19 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 8,192 |
| 90.176.64.0/18 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 16,384 |
| 90.176.128.0/17 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 32,768 |
| 90.176.170.0/24 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 256 |
| 90.177.0.0/16 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 65,536 |
| 90.178.0.0/15 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 131,072 |
| 90.180.0.0/14 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 262,144 |
| 90.181.0.0/16 | CZ | NEXTEL-XDSL | XDSL NETWORK-ADSL | RIPE_NCC | ASSIGNED PA | 65,536 |
| 90.182.0.0/16 | CZ | CZ-CZNET-20061017 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 65,536 |
| 90.182.108.0/24 | CZ | CZ-CZNET-20061017 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 256 |
| 90.183.0.0/16 | CZ | FTTX-BRNOKAMECHY | Brno | RIPE_NCC | ASSIGNED PA | 65,536 |
| 91.191.64.0/18 | SK | O2SK-NET-20180523-01 | O2 Slovakia, S.R.O. | RIPE_NCC | ASSIGNED PA | 16,384 |
| 91.193.132.0/22 | CZ | PSENET-CZ | Burza Cennych Papiru Praha, A.S. | RIPE_NCC | ASSIGNED PI | 1,024 |
| 91.213.10.0/24 | CZ | CGI-CZ-Net | Cgi IT Czech Republic S.R.O. | RIPE_NCC | ASSIGNED PI | 256 |
| 91.232.82.0/24 | CZ | ABIS-CZ | Abis Czech, A.S. | RIPE_NCC | ASSIGNED PI | 256 |
| 92.243.192.0/19 | CZ | CZ-CZNET-20080130 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 8,192 |
| 109.80.0.0/15 | CZ | NEXTEL-XDSL | O2 Czech Republic, A.S. | RIPE_NCC | ASSIGNED PA | 131,072 |
| 109.81.112.0/20 | CZ | FIX_BB_Czechia-vl | Fix Bb Czechia-vl | RIPE_NCC | ASSIGNED PA | 4,096 |
| 109.81.160.0/20 | CZ | CGN_FIX_Broadband_Praha-vl | Cgn Fix Broadband Praha-vl | RIPE_NCC | ASSIGNED PA | 4,096 |
| 160.218.0.0/16 | CZ | CZ-CZNET-20040405 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 65,536 |
| 161.195.144.0/24 | US | ARA-MSC | Aramark Services, Inc. | ARIN | allocation | 256 |
| 185.61.228.0/22 | CZ | CZ-CZNET-20140624 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 1,024 |
| 185.143.112.0/22 | CZ | KNET-CLOUD-PRG | KNET-CLOUD-PRG | RIPE_NCC | ASSIGNED PA | 1,024 |
| 193.17.13.0/24 | FR | FR-DXC | Enterprise Services France SAS | RIPE_NCC | ASSIGNED PI | 256 |
| 193.84.12.0/23 | CZ | LOGIS | Logis A.S. | RIPE_NCC | ASSIGNED PI | 512 |
| 193.84.14.0/23 | CZ | LOGIS | Logis A.S. | RIPE_NCC | ASSIGNED PI | 512 |
| 194.50.248.0/23 | CZ | INPA | Banka Creditas A.s | RIPE_NCC | ASSIGNED PI | 512 |
| 194.165.47.0/24 | CZ | JO123-CZ | Ing. Jiri Orsag, Csc. | RIPE_NCC | ASSIGNED PI | 256 |
| 194.228.0.0/17 | CZ | CZ-CZNET-971003 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 32,768 |
| 194.228.72.0/22 | CZ | CZ-CZNET-971003 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 1,024 |
| 194.228.128.0/17 | CZ | CZ-CZNET-971003 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 32,768 |
| 195.5.186.0/24 | CZ | AGF-NET | Agrofert JSC | RIPE_NCC | ASSIGNED PI | 256 |
| 195.246.96.0/23 | CZ | PPF-INET-CZ | Ppf Banka A.S. | RIPE_NCC | ASSIGNED PI | 512 |
| 217.117.208.0/20 | CZ | CZ-CZNET-20040202 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED PA | 4,096 |
| 217.194.160.0/20 | CZ | CZ-TERMSNET | Termsnet - Serverhousing Subnet | RIPE_NCC | ASSIGNED PA | 4,096 |
IPv6 Prefixes
| CIDR | Country | Network Name | Organization | Registry | Status |
|---|---|---|---|---|---|
| 2001:67c:dd4::/48 | CZ | CZ-MAPNET-20240205 | Itixo S.R.O. | RIPE_NCC | ASSIGNED PI |
| 2001:41d8::/32 | CZ | CZ-CZNET-20041118 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED-BY-RIR |
| 2a00:1028::/29 | CZ | Infra_Loopback | Assigned for Infrastructure | RIPE_NCC | ASSIGNED |
| 2a00:1028::/32 | CZ | Infra_Loopback | Assigned for Infrastructure | RIPE_NCC | ASSIGNED |
| 2a02:9b8::/31 | CZ | CZ-CZNET-20090204 | O2 Czech Republic, A.S. | RIPE_NCC | ALLOCATED-BY-RIR |
Network Relationships
Peers:
AS1764, AS4455, AS5405, AS6461, AS6939, AS8218, AS15935, AS16019, AS22356, AS24482, AS29504, AS32590, AS33891, AS39120, AS40994, AS47232, AS49544, AS60068, AS199490, AS202297, AS212483, AS263444
Downstreams:
AS2571, AS13105, AS15380, AS16246, AS21241, AS21942, AS25238, AS25321, AS28952, AS35096, AS38952, AS39453, AS42908, AS43037, AS43757, AS43866, AS48451, AS49580, AS59747, AS62083, AS62102, AS197353, AS197920, AS198101, AS199059, AS201163, AS203411, AS204172, AS204907, AS205233, AS206613, AS206683, AS208712, AS208906, AS208950, AS211274, AS211731, AS215711
