← Back to Search
General Information
Name:
Cesnet Z.S.P.O.
Domain:
cesnet.cz
Country:
CZ
Type:
education
Registry:
RIPE_NCC
Prefix Counts
IPv4 Count:
850,944
IPv6 Count:
713,053,462,628,379,038,341,895,553,024
IPv4 Prefixes
| CIDR | Country | Network Name | Organization | Registry | Status | Size |
|---|---|---|---|---|---|---|
| 78.128.128.0/17 | CZ | OSU-TCZ | University of Ostrava | RIPE_NCC | ASSIGNED PA | 32,768 |
| 146.102.0.0/16 | CZ | VSE-TCZ | University of Economics, Prague | RIPE_NCC | LEGACY | 65,536 |
| 147.32.0.0/16 | CZ | CVUT-TCZ | Ceske Vysoke Uceni Technicke V Praze | RIPE_NCC | LEGACY | 65,536 |
| 147.33.0.0/16 | CZ | VSCHT-TCZ | Vysoka Skola Chemicko-technologicka V Praze | RIPE_NCC | LEGACY | 65,536 |
| 147.228.0.0/16 | CZ | ZCU-TCZ | Zapadoceska Univerzita V Plzni | RIPE_NCC | LEGACY | 65,536 |
| 147.230.0.0/16 | CZ | TUL-TCZ | Technicka Univerzita V Liberci | RIPE_NCC | LEGACY | 65,536 |
| 147.230.17.0/24 | CZ | TUL-TCZ | Technicka Univerzita V Liberci | RIPE_NCC | LEGACY | 256 |
| 147.231.0.0/16 | CZ | CAS-TCZ | Czech Academy of Sciences | RIPE_NCC | LEGACY | 65,536 |
| 147.251.0.0/16 | CZ | MUNI-TCZ | Masarykova Univerzita - Ustav Vypocetni Techniky | RIPE_NCC | LEGACY | 65,536 |
| 158.194.0.0/16 | CZ | UPOL-TCZ | Univerzita Palackeho V Olomouci | RIPE_NCC | LEGACY | 65,536 |
| 158.196.0.0/16 | CZ | VSB-TCZ | Vysoka Skola Banska - Technicka Univerzita Ostrava | RIPE_NCC | LEGACY | 65,536 |
| 160.216.0.0/16 | CZ | UNOB-TCZ | Univerzita Obrany | RIPE_NCC | LEGACY | 65,536 |
| 160.217.0.0/16 | CZ | JCU-TCZ | University of South Bohemia in Ceske Budejovice | RIPE_NCC | LEGACY | 65,536 |
| 185.8.160.0/22 | CZ | CESNET-BB13 | Cesnet Z.S.P.O. | RIPE_NCC | ASSIGNED PA | 1,024 |
| 192.108.128.0/24 | CZ | UOCHB-A | Institute of Organic Chemistry And Biochemistry of The Ascr, V.V.I. | RIPE_NCC | LEGACY | 256 |
| 193.84.32.0/20 | CZ | CZU-T34CZ | Czech University of Life Sciences Prague | RIPE_NCC | ASSIGNED PI | 4,096 |
| 193.84.53.0/24 | CZ | CUNI-PI1-TCZ | Charles University | RIPE_NCC | ASSIGNED PI | 256 |
| 193.84.55.0/24 | CZ | CUNI-PI2-TCZ | Charles University | RIPE_NCC | ASSIGNED PI | 256 |
| 193.84.56.0/21 | CZ | CUNI-PI2-TCZ | Charles University | RIPE_NCC | ASSIGNED PI | 2,048 |
| 193.84.80.0/22 | CZ | TEST-NET-TCZ | Cesnet Z.S.P.O. | RIPE_NCC | ASSIGNED PI | 1,024 |
| 193.84.104.0/22 | CZ | SFA-CTU | Ceske Vysoke Uceni Technicke V Praze | RIPE_NCC | ASSIGNED PI | 1,024 |
| 193.84.116.0/23 | CZ | ICPF_CAS-TCZ | Institute of Chemical Process Fundamentals of The Ascr, V.V.I. | RIPE_NCC | ASSIGNED PI | 512 |
| 193.84.160.0/20 | CZ | NRI-T34CZ | Ujv Rez, A.S. | RIPE_NCC | ASSIGNED PI | 4,096 |
| 193.84.192.0/20 | CZ | OPF_SLU-T34CZ | Silesian University in Opava | RIPE_NCC | ASSIGNED PI | 4,096 |
| 193.84.208.0/20 | CZ | OPF_SLU-T34CZ | Silesian University in Opava | RIPE_NCC | ASSIGNED PI | 4,096 |
| 194.50.26.0/23 | CZ | PLA | Povodi Labe, S.P. | RIPE_NCC | ASSIGNED PI | 512 |
| 195.113.0.0/16 | CZ | CUNI-T34CZ | Charles University | RIPE_NCC | ASSIGNED PA | 65,536 |
| 195.178.64.0/19 | CZ | CESNET-BB1 | Cesnet Z.S.P.O. | RIPE_NCC | ASSIGNED PA | 8,192 |
IPv6 Prefixes
| CIDR | Country | Network Name | Organization | Registry | Status |
|---|---|---|---|---|---|
| 2001:718::/29 | CZ | CESNET-6PRAHA-BB | Cesnet Z.S.P.O. | RIPE_NCC | AGGREGATED-BY-LIR |
| 2001:718::/32 | CZ | CESNET-6PRAHA-BB | Cesnet Z.S.P.O. | RIPE_NCC | AGGREGATED-BY-LIR |
Network Relationships
Peers:
AS553, AS559, AS702, AS1031, AS1103, AS1140, AS1267, AS1828, AS1836, AS1853, AS2119, AS2686, AS3214, AS3216, AS3333, AS4455, AS5405, AS5610, AS5713, AS6057, AS6233, AS6424, AS6461, AS6667, AS6855, AS6939, AS7195, AS8218, AS8283, AS8298, AS8426, AS8529, AS8758, AS9044, AS12552, AS12637, AS12779, AS12859, AS12969, AS13030, AS13237, AS14537, AS14630, AS14907, AS15547, AS15576, AS15605, AS16019, AS16509, AS17639, AS18106, AS20562, AS20764, AS20932, AS20965, AS21320, AS21412, AS23106, AS24482, AS24889, AS24961, AS25091, AS25160, AS25220, AS28716, AS29075, AS29134, AS29140, AS29504, AS30844, AS31510, AS33891, AS34019, AS34080, AS34177, AS34224, AS34288, AS34549, AS34927, AS35280, AS35360, AS35592, AS35598, AS35625, AS35710, AS36994, AS37100, AS37468, AS37497, AS37721, AS38880, AS39120, AS39122, AS39351, AS40994, AS41047, AS41095, AS41327, AS42541, AS45352, AS47147, AS47692, AS47957, AS48185, AS48362, AS48858, AS48919, AS49544, AS49605, AS50300, AS50629, AS50673, AS50763, AS51184, AS51185, AS51873, AS52320, AS56987, AS57695, AS57777, AS58057, AS58299, AS58511, AS61568, AS62275, AS64475, AS137409, AS198385, AS199524, AS199938, AS202297, AS205112, AS206356, AS210937, AS212483, AS213151, AS213241, AS263152, AS271253
Upstreams:
AS6762
