147.231.0.0

  • No reverse DNS
  • Not on blocklists
Network
CAS-TCZ
Description
Praha Please report network abuse -> [email protected]
Held by
Czech Academy of Sciences
Range
147.231.0.0 - 147.231.255.255
CIDR
147.231.0.0/16
Type
LEGACY
Country
CZ
Registered on
Last updated
Status
  • active
Report abuse to
abuse@cas.cz
Checked

Contacts

  • Administrative, technical and abuse

    Akademie ved Ceske republiky Network Admins AVCR1-RIPE

    Akademie ved Ceske republiky
    Narodni 3
    Praha 1
    117 20
    The Czech Republic

    abuse@cas.cz

    +420 221 403 111
    +420 224 240 572

  • Holder

    Czech Academy of Sciences ORG-AoSo1-RIPE

    Czech Academy of Sciences
    Akademie ved Ceske republiky
    Narodni 3
    Praha 1
    117 20
    The Czech Republic

    +420 221 403 111
    +420 224 240 512

  • Holder

    RIPE-NCC-LEGACY-MNT

  • Holder

    TENCZ-MNT

  • Administrative

    Jaromir Holec JH31557-RIPE

    Centre of Administration and Operations of the ASCR, v.v.i.
    Academy of Sciences of the Czech Republic
    Narodni 3
    Prague 1
    110 00
    The Czech Republic

    +420 266 052 826

  • Administrative and technical

    Miroslav Indra MI477-RIPE

    Centre of Administration and Operations of the ASCR, v.v.i.
    Academy of Sciences of the Czech Republic
    Narodni 3
    Prague 1
    110 00
    The Czech Republic

    +420 266 052 823
    +420 221 403 307

  • Administrative and technical

    Petr Vanicek PV1028-RIPE

    Institute of Information Theory and Automation
    Academy of Sciences of the Czech Republic
    Pod Vodarenskou vezi 4
    Prague 8 - Liben
    182 08
    The Czech Republic

    +420 266 052 364
    +420 286 890 299

  • Technical

    Petr Vondrasek PV3710-RIPE

    Centre of Administration and Operations of the ASCR, v.v.i.
    Academy of Sciences of the Czech Republic
    Narodni 3
    Prague 1
    110 00
    The Czech Republic

    +420 266 052 824
    +420 221 403 307

Reverse DNS

Names
None

Network

Announced by
AS2852 CESNET z.s.p.o.
Route
147.231.0.0/16, carried by 2,799 of bgp.tools' BGP feeds
Kind
Eyeball
Country
CZ
Tagged
Academic, Tranco 10k Host, Validating RPKI ROV

Upstreams and peers

  • AS6939 Hurricane Electric LLC2,792 paths
  • AS21320 GEANT Vereniging1,026 paths
  • AS174 Cogent Communications, LLC593 paths
  • AS1853 ACONET557 paths
  • AS60606 PRO-ZETA a.s.482 paths
  • AS6461 Zayo Bandwidth177 paths
  • AS20965 GEANT Vereniging116 paths
  • AS20723 AVONET, s.r.o.60 paths
  • AS8218 Zayo Europe59 paths
  • AS35280 F5 Networks SARL55 paths
  • AS34549 meerfarbig GmbH & Co. KG51 paths
  • AS5405 Inter.link GmbH44 paths

And 61 more

Downstreams

  • AS199711 National Cyber and Information Security Agency521 paths
  • AS48091 Kraj Vysocina508 paths
  • AS197451 Brno University of Technology497 paths
  • AS197277 State Institute for Drug Control494 paths
  • AS200874 Liberecky kraj494 paths
  • AS201648 Plzensky kraj494 paths
  • AS210498 Kraj Vysocina494 paths
  • AS212876 Pardubicky Kraj494 paths
  • AS61110 Sprava informacnich technologii mesta Plzne, p.o.492 paths
  • AS202874 Zlinsky Kraj490 paths
  • AS213152 Narodni bezpecnostni urad Czech Republic405 paths
  • AS210367 Krajska zdravotni, a.s.383 paths

And 17 more

From RIPEstat

Routes AS2852 announces

26 IPv4 prefixes covering 849,920 addresses, and 1 IPv6 prefix

IPv6

From bgp.tools

Peering

Name
CESNET
Type
Educational/Research
Peering policy
Selective
Traffic
500-1000Gbps
Traffic ratio
Balanced
Scope
Europe
AS-SET
RIPE::AS2852:AS-CESNET-GOOGLE
Website
https://www.cesnet.cz

Internet exchanges

ExchangeSpeedRoute servers
AMS-IX20 Gbit/sYes
DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN30 Gbit/sNo
NIX.CZ: Public peering VLAN400 Gbit/s over 2 portsYes

From PeeringDB

Location

Map © OpenStreetMap contributors
Location
Prague, Czechia
Accuracy
Within 10 km

Location from GeoLite2 data created by MaxMind

Blocklists

  • Spamhaus ZEN Not listed
  • SpamCop Not listed
  • Mailspike Not listed
  • PSBL Not listed