AS2852
CESNET z.s.p.o.
CESNET2
Organization
Title
CESNET z.s.p.o.
Website
https://www.cesnet.cz
Details
Regional Internet registry
RIPE
Allocated
22 Jun 2002
IP Addresses count
848,896
Traffic estimation
100-200Gbps
Balanced
Coordinates
Country
Czechia
Summary
The organization CESNET z.s.p.o. allocates 22 IP netblocks under the autonomous system number
(ASN ) of 2852.
The regional internet registry (RIR ) for this ASN is RIPE.
The country in which these IPs are located is Czechia (CZ), which is on #27 out of 249 countries by the total amount of ASNs allocated - 718.
AS2852 has 137 peers, 1 upstreams and 13 downstreams with a total of 848,896 IP addresses.
AS2852 has 137 peers, 1 upstreams and 13 downstreams with a total of 848,896 IP addresses.
IP Address ranges
Block | Description | IPs count |
---|---|---|
78.128.128.0/17 | CESNET-TCZ | 32,768 |
146.102.0.0/16 | Vysoka skola ekonomicka v Praze Prague | 65,536 |
147.32.0.0/15 | The whole IPv4 address space | 131,072 |
147.228.0.0/16 | Plzen | 65,536 |
147.230.0.0/15 | The whole IPv4 address space | 131,072 |
147.251.0.0/16 | Brno | 65,536 |
158.194.0.0/16 | Olomouc | 65,536 |
158.196.0.0/16 | VSB-TCZ | 65,536 |
160.216.0.0/15 | The whole IPv4 address space | 131,072 |
185.8.160.0/22 | CESNET-TCZ | 1,024 |
193.84.32.0/20 | Ceska zemedelska univerzita v Praze Prague 6 | 4,096 |
193.84.53.0/24 | Charles University Prague | 256 |
193.84.55.0/24 | Charles University Prague | 256 |
193.84.56.0/21 | Charles University Prague | 2,048 |
193.84.80.0/22 | Prague 6 | 1,024 |
193.84.116.0/23 | Institute of Chemical Process Fundamentals of the CAS, v.v.i. Prague 6 | 512 |
193.84.160.0/20 | Rez | 4,096 |
193.84.192.0/20 | Slezska univerzita v Opave Opava, Karvina | 4,096 |
193.84.192.0/19 | Slezska univerzita v Opave Opava, Karvina | 8,192 |
193.84.208.0/20 | Slezska univerzita v Opave Opava, Karvina | 4,096 |
195.113.0.0/16 | CESNET-TCZ | 65,536 |
195.178.64.0/19 | CESNET-T34CZ | 8,192 |
Peers
ASN | Name | IPs Count |
---|---|---|
AS1764 | Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH | 85,760 |
AS1853 | ACOnet Backbone | 466,432 |
AS2686 | AT&T Global Network Services, LLC | 17,711,616 |
AS2607 | Zdruzenie pouzivatelov Slovenskej akademickej datovej siete | 558,592 |
AS3216 | PJSC "Vimpelcom" | 1,063,776 |
AS3267 | The federal state autonomous educational establishment of additional professional education Center of Realization of State Educational Policy and Informational Technologies | 272,640 |
AS3303 | Swisscom (Schweiz) AG | 3,607,552 |
AS4657 | StarHub Ltd | 644,096 |
AS5610 | O2 Czech Republic, a.s. | 1,552,896 |
AS5713 | SAIX-NET | 2,258,176 |
AS6667 | Elisa Oyj | 2,816 |
AS6830 | Liberty Global B.V. | 12,174,336 |
AS6855 | Slovak Telecom, a. s. | 674,816 |
AS6881 | NIX.CZ z.s.p.o. | 3,328 |
AS6939 | Hurricane Electric LLC | 516,096 |
AS7713 | TELKOMNET-AS-AP PT Telekomunikasi Indonesia | 3,399,424 |
AS8218 | Zayo France SAS | 56,064 |
AS8359 | MTS PJSC | 1,168,128 |
AS8447 | A1 Telekom Austria AG | 2,257,152 |
AS8468 | ENTANET International Limited | 360,448 |
AS8492 | "OBIT" Ltd. | 76,800 |
AS8518 | RFE/RL, Inc., organizacni slozka | 7,936 |
AS8732 | OJSC Comcor | 139,776 |
AS9304 | HGC Global Communications Limited | 1,500,928 |
AS10906 | NIC. | 512 |
AS11284 | NIC. | 512 |
AS12552 | IP-Only Networks AB | 417,280 |
AS12637 | SEEWEB s.r.l. | 98,048 |
AS12741 | Netia SA | 1,651,968 |
AS12779 | IT.Gate S.p.A. | 51,712 |
AS12850 | IRIDEOS S.P.A. | 37,888 |
AS13030 | Init7 (Switzerland) Ltd. | 95,744 |
AS13237 | euNetworks GmbH | 576,000 |
AS13335 | Cloudflare, Inc. | 1,573,376 |
AS14061 | DigitalOcean, LLC | 2,272,768 |
AS14840 | COMMCORP COMUNICACOES LTDA | 53,504 |
AS15547 | netplus.ch SA | 125,696 |
AS15685 | Casablanca INT | 60,160 |
AS16019 | Vodafone Czech Republic a.s. | 175,872 |
AS16246 | Nej.cz s.r.o. | 117,760 |
AS16509 | Amazon.com, Inc. | 33,372,160 |
AS18106 | Viewqwest Pte Ltd | 51,456 |
AS20723 | AVONET, s.r.o. | 15,360 |
AS20764 | CJSC RASCOM | 13,568 |
AS20804 | Exatel S.A. | 247,040 |
AS20932 | Services Industriels de Geneve | 9,472 |
AS21430 | WIA spol. s.r.o. | 37,376 |
AS24482 | SG.GS | 22,784 |
AS25192 | CZ.NIC, z.s.p.o. | 6,400 |
AS25234 | ACTIVE 24, s.r.o. | 8,192 |
AS25424 | InterneXt 2000, s.r.o. | 33,792 |
AS25512 | CD-Telematika a.s. | 122,368 |
AS28260 | EPP | 16,896 |
AS28725 | CETIN a.s. | 133,888 |
AS28892 | Cesky urad zememericky a katastralni | 256 |
AS28917 | LLC "TRC FIORD" | 46,336 |
AS29086 | GiTy, a.s. | 4,096 |
AS29208 | Dial Telecom, a.s. | 260,608 |
AS29504 | Freenet Liberec, z.s. | 1,024 |
AS31019 | Paulus M. Hoogsteder trading as Meanie | 256 |
AS31133 | PJSC MegaFon | 787,712 |
AS31349 | a-net Liberec s.r.o. | 5,120 |
AS33891 | Core-Backbone GmbH | 0 |
AS34080 | MIRAMO spol. s.r.o. | 11,264 |
AS34224 | Neterra Ltd. | 56,576 |
AS34288 | Kantonsschule Zug | 16,640 |
AS35236 | 2 connect a.s. | 9,472 |
AS35361 | GREPA Networks s.r.o. | 10,240 |
AS36692 | Cisco OpenDNS, LLC | 56,576 |
AS37100 | SEACOM Limited 1st Floor, North Wing Orange Tower, Cybercity Ebene Mauritius +230 401 0915 In case of abuse, please contact [email protected] | 1,071,360 |
AS37468 | ANGOLA Cables | 5,120 |
AS37497 | Network Platforms Pty Ltd | 14,336 |
AS38880 | Micron21 Datacentre Pty Ltd | 31,488 |
AS39120 | Convergenze S.p.A. | 92,672 |
AS39122 | Blacknight Internet Solutions Limited | 27,392 |
AS39351 | 31173 Services AB | 7,168 |
AS39791 | Telco Pro Services, a. s. | 18,432 |
AS41095 | IPTP LTD | 40,704 |
AS41327 | Fiber Telecom S.p.A. | 8,448 |
AS43413 | NEW TELEKOM, spol. s r.o. | 6,144 |
AS43531 | IX Reach Ltd | 14,592 |
AS43541 | VSHosting s.r.o. | 19,968 |
AS43708 | METRONET s.r.o. | 24,064 |
AS43709 | SilesNet s.r.o. | 8,192 |
AS45352 | IP ServerOne Solutions Sdn Bhd | 28,928 |
AS47110 | Cloud4com, a.s. | 4,608 |
AS47147 | ANEXIA Internetdienstleistungs GmbH | 1,280 |
AS47232 | ISP Alliance a.s. | 21,760 |
AS47868 | SUPRO, spol. s r.o. | 4,096 |
AS48091 | Kraj Vysocina | 1,536 |
AS48298 | MINISTERSTVO VNITRA CR | 3,072 |
AS48417 | ITS akciova spolecnost | 4,096 |
AS49101 | KABELOVA TELEVIZE CZ s.r.o. | 9,216 |
AS49605 | Digital Telecommunication Services S.r.l. | 9,728 |
AS50304 | Blix Solutions AS | 38,912 |
AS50695 | VLTAVA LABE MEDIA a.s. | 512 |
AS50698 | TETA s.r.o. | 11,264 |
AS51185 | Onecom Global Communications LTD | 5,632 |
AS51727 | SKODA POWER s.r.o. | 512 |
AS51800 | FIBER Network s.r.o. | 4,096 |
AS52320 | GlobeNet Cabos Submarinos Colombia | 10,496 |
AS55329 | Telcotech Ltd. | 4,096 |
AS56344 | Viridium.cz s.r.o. | 1,024 |
AS56456 | C2NET s.r.o. | 4,096 |
AS58239 | hanspaul-city.net s.r.o. | 1,536 |
AS58511 | Anycast Global Backbone | 6,912 |
AS59984 | KLFREE NETWORKS, s.r.o. | 1,024 |
AS60501 | Sirius Technology SRL | 4,864 |
AS61110 | Sprava informacnich technologii mesta Plzne, p.o. | 1,024 |
AS61955 | ColocationIX GmbH | 1,280 |
AS63927 | RISE | 5,120 |
AS196762 | ALKOM Security, a.s. | 256 |
AS197277 | State Institute for Drug Control | 2,048 |
AS197451 | Brno University of Technology | 67,072 |
AS197595 | Obenetwork AB | 27,648 |
AS198605 | AVAST Software s.r.o. | 21,504 |
AS199604 | OLOMOUCKY KRAJ | 256 |
AS199711 | National Cyber and Information Security Agency | 1,024 |
AS199803 | ComSource s.r.o. | 1,536 |
AS200874 | Liberecky kraj | 1,024 |
AS201163 | Komercni banka, a.s. | 1,024 |
AS201594 | Czech Telecommunication Office | 256 |
AS201648 | Plzensky kraj | 2,048 |
AS202297 | Skylon Solutions Limited | 512 |
AS202605 | EMPECOM, s.r.o. | 1,024 |
AS202874 | Zlinsky Kraj | 1,024 |
AS202921 | CC INTERNET s.r.o. | 1,792 |
AS203165 | Statni pokladna Centrum sdilenych sluzeb, s.p. | 2,048 |
AS204772 | Reditelstvi silnic a dalnic CR | 1,024 |
AS204860 | NetX R&D z.s. | 20,992 |
AS207153 | Stream-iT, s.r.o. | 1,024 |
AS208060 | Dr. Max BDC, s.r.o. | 512 |
AS208093 | Moravskoslezsky kraj | 1,024 |
AS208882 | Automation & Business, s.r.o. | 1,024 |
AS213387 | TeSuNet s.r.o. | 256 |
AS267613 | ELETRONET S.A. | 1,024 |
AS6762 | TELECOM ITALIA SPARKLE S.p.A. | 128,768 |
Upstreams
ASN | Name | IPs Count |
---|---|---|
AS6762 | TELECOM ITALIA SPARKLE S.p.A. | 128,768 |
Downstreams
ASN | Name | IPs Count |
---|---|---|
AS2607 | Zdruzenie pouzivatelov Slovenskej akademickej datovej siete | 558,592 |
AS48091 | Kraj Vysocina | 1,536 |
AS51727 | SKODA POWER s.r.o. | 512 |
AS61110 | Sprava informacnich technologii mesta Plzne, p.o. | 1,024 |
AS197277 | State Institute for Drug Control | 2,048 |
AS197451 | Brno University of Technology | 67,072 |
AS199604 | OLOMOUCKY KRAJ | 256 |
AS199711 | National Cyber and Information Security Agency | 1,024 |
AS200874 | Liberecky kraj | 1,024 |
AS201648 | Plzensky kraj | 2,048 |
AS202874 | Zlinsky Kraj | 1,024 |
AS204772 | Reditelstvi silnic a dalnic CR | 1,024 |
AS208093 | Moravskoslezsky kraj | 1,024 |
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