Czech Republic ASN Summary & Czech Republic IP addresses
Full list of Czech Republic IP ranges
This Czech Republic IP list includes all Czech Republic ASNs assigned, and the complete list of Czech Republic IP addresses list by IP ranges.
684 ASN Networks
| ASN | Description | IPv4 Prefixes | IPv6 Prefixes | IPv4 Peers | IPv6 Peers | Date Allocated |
|---|---|---|---|---|---|---|
| AS2571 | DHL Information Services (Europe) s.r.o | 22 | 5 | 7 | 3 | 1993-04-07 |
| AS8913 | Mopos Communications A.S. | 1 | 1 | 4 | 3 | 1998-07-31 |
| AS24806 | Ktis 2, 384 03 Ktis, CZ | 12 | 1 | 6 | 2 | 2002-04-04 |
| AS25192 | CZ.NIC, z.s.p.o. | 10 | 8 | 23 | 16 | 2002-08-28 |
| AS25234 | http://www.active24.cz/ | 5 | 3 | 7 | 8 | 2002-09-09 |
| AS21045 | K-net Technical International Group, s.r.o. | 1 | 0 | 1 | 0 | 2001-08-06 |
| AS21241 | Prague | 3 | 0 | 2 | 0 | 2001-10-04 |
| AS21430 | WIA spol. s.r.o. | 66 | 4 | 14 | 10 | 2001-12-07 |
| AS24641 | FASTER CZ spol. s r.o. | 10 | 2 | 19 | 7 | 2002-02-01 |
| AS12570 | Network and internet service provider. | 11 | 3 | 24 | 16 | 1999-07-28 |
| AS12984 | PilsFree, z. s. | 1 | 1 | 2 | 2 | 2015-09-22 |
| AS15425 | PODA a.s. | 8 | 1 | 1 | 0 | 2004-07-14 |
| AS2118 | Relcom Group 19.02.2019 ; | 27 | 0 | 2 | 0 | 1993-02-17 |
| AS2852 | CESNET z.s.p.o. | 22 | 2 | 29 | 14 | 1993-12-20 |
| AS5610 | O2 Czech Republic, a.s. | 76 | 4 | 37 | 14 | 1996-04-25 |
| AS29321 | Czech Republic | 5 | 1 | 1 | 1 | 2003-07-31 |
| AS29583 | Spinoco Czech Republic, a.s. | 3 | 0 | 5 | 0 | 2003-10-16 |
| AS30764 | PODA a.s. | 23 | 2 | 13 | 8 | 2003-11-27 |
| AS31246 | NETBOX Autonomous system | 5 | 3 | 5 | 2 | 2004-03-30 |
| AS201447 | The Czech National Bank | 2 | 0 | 1 | 0 | 2022-11-09 |
| AS201464 | ISP Alliance a.s. | 1 | 0 | 2 | 0 | 2014-10-20 |
| AS201533 | United Networks SE | 1 | 0 | 1 | 0 | 2014-10-02 |
| AS203376 | Mailkit s.r.o. | 1 | 1 | 2 | 1 | 2016-02-02 |
| AS203488 | DaLuNET.cz Internet Service Provider | 4 | 1 | 1 | 0 | 2018-04-20 |
| AS199101 | Nordic Telecom Regional s.r.o. | 1 | 1 | 1 | 0 | 2012-08-13 |
| AS199220 | KrU Stredoceskeho kraje | 2 | 1 | 1 | 0 | 2012-09-20 |
| AS199490 | INTERCONNECT s.r.o. | 1 | 1 | 7 | 3 | 2013-01-04 |
| AS199600 | Virtis s.r.o. | 1 | 1 | 1 | 0 | 2012-11-09 |
| AS199806 | DCIT, a.s. | 1 | 1 | 1 | 0 | 2014-01-21 |
| AS205300 | Sunfox s.r.o. | 1 | 0 | 1 | 0 | 2017-09-26 |
| AS205535 | Windyghoul s.r.o. | 3 | 3 | 5 | 4 | 2017-07-27 |
| AS205863 | Stepan Pokorny | 2 | 0 | 1 | 0 | 2017-05-17 |
| AS204332 | TKC system s.r.o. | 4 | 0 | 6 | 0 | 2018-04-03 |
| AS204570 | Vratislav Kriz | 1 | 1 | 1 | 0 | 2018-02-15 |
| AS204886 | Metropolitni sit Humpolec spol. s r.o. | 1 | 1 | 1 | 1 | 2017-12-13 |
| AS198248 | Richard Filip | 2 | 0 | 1 | 0 | 2011-11-25 |
| AS198282 | Cable-NET s.r.o. | 1 | 1 | 3 | 2 | 2011-12-01 |
| AS198284 | Mesto Velka Bystrice | 2 | 1 | 1 | 1 | 2011-12-01 |
| AS198346 | NETFORMS s.r.o. | 4 | 0 | 2 | 0 | 2011-12-20 |
| AS198500 | Masarykova univerzita - Ustav vypocetni techniky | 1 | 1 | 1 | 0 | 2012-02-16 |
| AS200114 | JON.CZ s.r.o. | 3 | 0 | 1 | 0 | 2013-10-04 |
| AS200449 | Qrator Labs CZ s.r.o. | 1 | 0 | 1 | 0 | 2015-06-30 |
| AS200844 | STUDENT AGENCY k.s. | 2 | 1 | 2 | 1 | 2015-03-30 |
| AS206234 | FORTUNA GAME a.s. | 2 | 0 | 1 | 0 | 2017-03-02 |
| AS206429 | CORSAT s.r.o | 2 | 2 | 1 | 0 | 2017-01-20 |
| AS206438 | MX-NET Telekomunikace s.r.o. | 5 | 1 | 2 | 0 | 2017-01-19 |
| AS206613 | Tipsport.net a.s. | 1 | 1 | 1 | 0 | 2016-12-12 |
| AS206683 | Moravskoslezske inovacni centrum Ostrava, a.s. | 1 | 0 | 1 | 0 | 2018-05-14 |
| AS206784 | Internet Praha Josefov s.r.o. | 1 | 1 | 4 | 0 | 2016-11-07 |
| AS206951 | BMB-Green s.r.o. | 1 | 1 | 1 | 0 | 2016-10-03 |
| AS208143 | amccomp s.r.o. | 1 | 2 | 1 | 2 | 2019-09-25 |
| AS208387 | Blond & Brown s.r.o. | 1 | 0 | 1 | 0 | 2019-08-14 |
| AS208422 | Infinity Telecom, s.r.o. | 2 | 1 | 1 | 0 | 2019-08-06 |
| AS209055 | W.A.G. PAYMENT SOLUTIONS, A.S. | 1 | 0 | 1 | 0 | 2019-04-15 |
| AS209135 | Flowmon Networks a.s. | 2 | 4 | 2 | 2 | 2019-04-01 |
| AS209431 | PharoCom s.r.o. | 0 | 1 | 0 | 1 | 2022-01-26 |
| AS210604 | Pernix systems s.r.o. | 2 | 0 | 2 | 2 | 2021-10-21 |
| AS212362 | INERA.CZ s.r.o. | 1 | 1 | 3 | 1 | 2020-11-16 |
| AS207167 | amccomp s.r.o. | 5 | 2 | 4 | 6 | 2018-05-29 |
| AS207198 | Kabelova televize Koprivnice, s.r.o. | 3 | 1 | 2 | 2 | 2016-08-12 |
| AS207242 | NOEL, s.r.o. | 5 | 5 | 1 | 1 | 2016-08-04 |
| AS207850 | HovNet-SERVIS s.r.o. | 1 | 0 | 1 | 0 | 2019-11-15 |
| AS207886 | ECOMP spol s r.o. | 4 | 2 | 2 | 0 | 2019-11-08 |
| AS47749 | ORIFLAME SOFTWARE s.r.o. | 3 | 3 | 2 | 1 | 2008-08-13 |
| AS48451 | Prazska energetika, a.s. | 1 | 1 | 5 | 1 | 2008-11-27 |
| AS48474 | Nordic Telecom Regional s.r.o. | 3 | 0 | 1 | 0 | 2008-12-01 |
| AS48574 | T-Mobile Czech Republic a.s. | 3 | 0 | 1 | 0 | 2008-12-11 |
| AS34093 | Nordic Telecom Regional s.r.o. | 7 | 1 | 1 | 0 | 2004-10-21 |
| AS34315 | Quantcom, a.s. | 3 | 1 | 1 | 1 | 2004-12-15 |
| AS34475 | Agrostroj Pelhrimov, a.s. | 4 | 0 | 1 | 0 | 2019-11-28 |
| AS34487 | SouthPrague.Net, z.s. | 1 | 1 | 1 | 0 | 2019-11-27 |
| AS34596 | HVfree.net servis. s.r.o. | 2 | 1 | 1 | 0 | 2019-11-15 |
| AS35236 | 2 connect a.s. | 14 | 5 | 13 | 12 | 2005-06-29 |
| AS41453 | SITEL spol. s r.o. | 2 | 2 | 4 | 2 | 2006-08-23 |
| AS47131 | PH, spol. s r. o. | 3 | 0 | 2 | 0 | 2008-05-02 |
| AS47681 | Nej.cz s.r.o. | 1 | 0 | 1 | 0 | 2008-07-31 |
| AS44002 | Czech Republic | 11 | 1 | 5 | 0 | 2007-11-01 |
| AS43037 | Seznam.cz, a.s. | 6 | 6 | 11 | 5 | 2007-05-29 |
| AS43070 | JAW.cz s.r.o. | 7 | 3 | 4 | 1 | 2007-06-01 |
| AS48926 | Pe3ny Net s.r.o. | 4 | 1 | 1 | 2 | 2009-03-02 |
| AS49121 | Infinity Telecom | 12 | 3 | 23 | 17 | 2016-09-29 |
| AS49985 | IP4ISP z.s.p.o | 4 | 1 | 7 | 3 | 2009-10-21 |
| AS50097 | IPVOIP s.r.o. | 1 | 0 | 4 | 0 | 2009-11-16 |
| AS50695 | VLTAVA LABE MEDIA a.s. | 2 | 1 | 4 | 0 | 2010-03-10 |
| AS196815 | LAN servis s.r.o. | 1 | 0 | 1 | 0 | 2009-10-19 |
| AS196916 | BusinessCom CZ spol. s r.o. | 6 | 0 | 1 | 0 | 2010-02-01 |
| AS197013 | Sprintel s.r.o. | 5 | 1 | 4 | 0 | 2010-04-08 |
| AS197277 | State Institute for Drug Control | 3 | 1 | 2 | 1 | 2010-09-20 |
| AS197307 | Core4Net, s.r.o. | 3 | 1 | 5 | 4 | 2010-10-11 |
| AS197412 | Trinecky Tlapnet s.r.o | 1 | 0 | 1 | 0 | 2010-11-19 |
| AS197451 | Brno University of Technology | 8 | 4 | 9 | 9 | 2010-12-08 |
| AS197566 | OK-NET s.r.o. | 1 | 0 | 1 | 0 | 2011-02-09 |
| AS57081 | Scarfbot Technologies, s.r.o. | 1 | 1 | 1 | 1 | 2016-01-13 |
| AS57288 | StaMPi, spol. s r.o. | 1 | 1 | 3 | 2 | 2011-09-14 |
| AS57294 | Internet Expert s.r.o. | 2 | 1 | 1 | 1 | 2011-09-15 |
| AS57560 | XLNET s.r.o. | 2 | 1 | 1 | 1 | 2011-11-29 |
| AS57728 | Telco Infrastructure, s.r.o. | 5 | 3 | 1 | 1 | 2019-10-21 |
| AS57904 | Vevynet s.r.o. | 1 | 0 | 1 | 0 | 2012-03-08 |
| AS59984 | KLFREE NETWORKS, s.r.o. | 1 | 1 | 5 | 1 | 2014-07-10 |
| AS52130 | LiveSport s.r.o. | 1 | 1 | 2 | 2 | 2011-01-05 |
| AS54444 | AS54444 | 0 | 49 | 0 | 1 | 2012-02-22 |
| AS56566 | SATT a.s. | 1 | 1 | 1 | 1 | 2011-03-21 |
| AS50971 | JHComp s.r.o. | 1 | 1 | 1 | 1 | 2010-05-04 |
| AS51025 | VSHosting s.r.o. | 1 | 0 | 1 | 0 | 2010-05-19 |
| AS51134 | Development 777 s.r.o. | 4 | 2 | 4 | 2 | 2010-06-07 |
| AS51420 | cyrilek.net .z.s. | 16 | 0 | 2 | 0 | 2010-08-19 |
| AS51661 | Allstar Net s.r.o. | 3 | 1 | 1 | 1 | 2022-11-02 |
| AS58220 | Tomas Budai | 1 | 1 | 1 | 1 | 2016-05-27 |
| AS58239 | hanspaul-city.net s.r.o. | 4 | 1 | 4 | 1 | 2012-06-01 |
| AS25238 | MONETA Money Bank, a.s. | 2 | 1 | 2 | 1 | 2002-09-10 |
| AS28725 | CETIN a.s. | 9 | 2 | 41 | 27 | 2003-02-10 |
| AS28851 | Litomysl | 4 | 1 | 1 | 0 | 2003-03-14 |
| AS12767 | T-Mobile Czech Republic a.s. | 6 | 2 | 1 | 0 | 1999-11-02 |
| AS13036 | T-Mobile Czech Republic a.s. | 30 | 2 | 1 | 0 | 2000-02-24 |
| AS15380 | is czech national air traffic control organisation, | 1 | 1 | 2 | 2 | 2002-11-04 |
| AS20643 | PilsFree servis, s.r.o. | 1 | 1 | 1 | 1 | 2015-08-07 |
| AS20701 | CZ.NIC, z.s.p.o. | 2 | 2 | 1 | 0 | 2001-05-10 |
| AS8882 | AS8882 | 0 | 1 | 0 | 3 | 1998-07-09 |
| AS3161 | IT PROFI s.r.o. | 1 | 0 | 1 | 0 | 2012-04-25 |
| AS61045 | antiddos s.r.o. | 1 | 0 | 1 | 0 | 2021-09-13 |
| AS61110 | Sprava informacnich technologii mesta Plzne, p.o. | 2 | 3 | 2 | 2 | 2013-02-13 |
| AS61425 | AdminIT, s. r. o. | 1 | 0 | 1 | 0 | 2012-10-15 |
| AS62159 | Happy Technik s.r.o. | 5 | 0 | 2 | 0 | 2014-01-21 |
| AS59747 | NIX.CZ z.s.p.o. | 0 | 1 | 4 | 2 | 2022-02-28 |
| AS59871 | Heureka group a.s. | 1 | 5 | 4 | 2 | 2014-08-26 |
| AS59970 | www.amigonet.cz | 3 | 2 | 5 | 2 | 2014-07-17 |
| AS60275 | RVTech s.r.o. | 0 | 1 | 0 | 2 | 2013-08-21 |
| AS49890 | ABLE agency, s.r.o. | 1 | 1 | 1 | 1 | 2009-10-05 |
| AS50113 | NTX Technologies s.r.o. | 27 | 25 | 13 | 5 | 2009-11-18 |
| AS50415 | Ahosting a.s. | 1 | 1 | 2 | 2 | 2018-05-07 |
| AS50698 | TETA s.r.o. | 9 | 3 | 5 | 4 | 2010-03-10 |
| AS51800 | FIBER Network s.r.o. | 1 | 1 | 6 | 2 | 2010-11-05 |
| AS51968 | NEOS v.o.s. | 2 | 1 | 2 | 1 | 2010-12-08 |
| AS52115 | JaroNet - services s.r.o. | 1 | 1 | 1 | 1 | 2010-12-29 |
| AS52154 | mjanik.net s.r.o. | 9 | 0 | 2 | 0 | 2011-01-10 |
| AS56624 | Rtyne.net s.r.o. | 2 | 0 | 1 | 0 | 2011-04-12 |
| AS196735 | [email protected] | 2 | 1 | 6 | 1 | 2009-08-25 |
| AS196845 | Nordic Telecom Regional s.r.o. | 3 | 1 | 1 | 0 | 2009-10-28 |
| AS196849 | Marcela Byrtusova | 1 | 0 | 2 | 0 | 2011-11-02 |
| AS196978 | Nordic Telecom Regional s.r.o. | 1 | 1 | 1 | 0 | 2010-03-18 |
| AS197353 | NN Management Services, s.r.o. | 3 | 0 | 1 | 0 | 2011-01-27 |
| AS197442 | Nordic Telecom Regional s.r.o. | 1 | 0 | 1 | 0 | 2010-12-02 |
| AS197698 | D-H-T SYSTEMS s.r.o. | 1 | 0 | 1 | 0 | 2011-03-29 |
| AS56973 | VITKOVICE IT SOLUTIONS a.s. | 2 | 0 | 2 | 0 | 2011-06-27 |
| AS57069 | Dempsey and Clark s.r.o. | 9 | 0 | 1 | 0 | 2011-07-12 |
| AS57472 | JR-NET, s.r.o. | 2 | 1 | 1 | 1 | 2011-11-04 |
| AS57564 | Nordic Telecom Regional s.r.o. | 1 | 1 | 1 | 1 | 2011-11-30 |
| AS50825 | UVT Internet s.r.o. | 5 | 1 | 1 | 1 | 2010-03-31 |
| AS50833 | # upstreams | 4 | 2 | 4 | 2 | 2011-02-03 |
| AS51521 | Resident Control s.r.o. | 1 | 0 | 2 | 0 | 2010-09-16 |
| AS51744 | Non-profit organization Jablonka.cz | 1 | 1 | 8 | 3 | 2010-10-29 |
| AS49262 | Ataccama Software, s.r.o. | 1 | 1 | 2 | 2 | 2020-02-07 |
| AS209369 | The Cloud Provider s.r.o. | 2 | 1 | 5 | 4 | 2022-09-15 |
| AS209810 | Netcore services s.r.o. | 5 | 1 | 7 | 5 | 2018-11-28 |
| AS210111 | Netcraft Solutions s.r.o. | 1 | 1 | 5 | 3 | 2018-10-08 |
| AS210139 | DPT s.r.o. LLC | 3 | 2 | 5 | 4 | 2022-01-14 |
| AS211774 | ign.cz internet, s.r.o. | 2 | 1 | 1 | 1 | 2021-02-18 |
| AS211816 | ERON X s.r.o. | 1 | 0 | 4 | 0 | 2022-05-17 |
| AS208329 | Ceska televize org object created by ANECT | 4 | 0 | 2 | 0 | 2019-08-23 |
| AS208663 | Martin Pustka | 1 | 1 | 1 | 0 | 2019-06-26 |
| AS208805 | POPE servis s.r.o. | 1 | 0 | 1 | 0 | 2019-05-31 |
| AS212859 | KASSEX s.r.o. | 1 | 1 | 1 | 0 | 2021-07-19 |
| AS212975 | TeamCity s.r.o. | 2 | 1 | 1 | 0 | 2022-05-27 |
| AS210306 | ADV Computers s.r.o. | 4 | 1 | 2 | 1 | 2018-08-29 |
| AS210367 | Krajska zdravotni, a.s. | 1 | 1 | 1 | 0 | 2021-12-13 |
| AS210498 | Kraj Vysocina | 1 | 0 | 1 | 0 | 2021-11-11 |
| AS210951 | Josef Miegl | 0 | 8 | 0 | 8 | 2021-08-04 |
| AS211137 | ISP Services spol. s.r.o., | 1 | 0 | 1 | 0 | 2021-06-18 |
| AS207632 | Jan Betik | 0 | 2 | 0 | 2 | 2019-12-30 |
| AS43614 | Economia a.s. | 2 | 1 | 1 | 1 | 2011-02-02 |
| AS43708 | METRONET s.r.o. | 5 | 1 | 5 | 2 | 2007-09-17 |
| AS44065 | NETAIR, s.r.o. | 2 | 1 | 2 | 1 | 2007-11-13 |
| AS44070 | Nej.cz s.r.o. | 2 | 1 | 1 | 1 | 2007-11-13 |
| AS29208 | Quantcom a.s. | 27 | 2 | 71 | 51 | 2003-07-01 |
| AS30738 | NetArt Group s.r.o. | 1 | 1 | 1 | 0 | 2010-03-12 |
| AS44770 | http://www.savvy.cz | 1 | 1 | 1 | 1 | 2008-03-06 |
| AS47110 | AUTOCONT a.s. | 5 | 1 | 5 | 2 | 2016-04-13 |
| AS39736 | ICT Support, s.r.o. | 1 | 1 | 1 | 1 | 2017-10-27 |
| AS39761 | ABAK, Co.Ltd. | 6 | 2 | 2 | 1 | 2006-04-21 |
| AS39790 | Web4U s.r.o. | 5 | 3 | 6 | 4 | 2006-04-25 |
| AS39791 | Telco Pro Services, a.s. | 4 | 1 | 11 | 9 | 2006-04-25 |
| AS39817 | OvaNet, a.s. | 4 | 1 | 4 | 1 | 2006-04-28 |
| AS39906 | CoProSys a.s. | 9 | 2 | 3 | 1 | 2006-05-12 |
| AS34040 | TTNET s.r.o. | 4 | 1 | 1 | 1 | 2004-10-07 |
| AS35361 | GREPA Networks s.r.o. | 2 | 1 | 5 | 4 | 2005-07-22 |
| AS39050 | NET service solution, s.r.o. | 1 | 1 | 1 | 0 | 2020-12-11 |
| AS47767 | Regionalni centrum Olomouc s.r.o. | 1 | 1 | 2 | 2 | 2008-08-15 |
| AS48364 | Radim Pytela trading as AC Vyskov | 2 | 1 | 2 | 2 | 2008-11-18 |
| AS48417 | ITS akciova spolecnost | 7 | 1 | 8 | 1 | 2008-11-25 |
| AS206177 | SitePark s.r.o. | 5 | 6 | 1 | 0 | 2017-03-14 |
| AS206414 | TechCenter s.r.o. | 4 | 0 | 2 | 0 | 2017-01-24 |
| AS206785 | Magistrat mesta Brna | 2 | 1 | 1 | 0 | 2016-11-07 |
| AS206908 | FORTUNA GAME a.s. | 2 | 0 | 2 | 0 | 2016-10-11 |
| AS204383 | SPCom s.r.o. | 2 | 1 | 1 | 1 | 2018-03-21 |
| AS204949 | CMIS s.r.o. | 1 | 0 | 5 | 0 | 2017-12-01 |
| AS205044 | Pro-Line comp s.r.o. | 1 | 1 | 1 | 0 | 2017-11-14 |
| AS202237 | Wic-Net, s.r.o. | 1 | 1 | 1 | 1 | 2014-03-03 |
| AS202551 | INERA.CZ s.r.o. | 1 | 1 | 1 | 0 | 2016-07-26 |
| AS202605 | EMPECOM, s.r.o. | 1 | 1 | 5 | 2 | 2016-07-14 |
| AS202618 | Rychly drat, s.r.o. | 2 | 1 | 1 | 0 | 2016-07-11 |
| AS202657 | Pavel Jochim | 1 | 1 | 1 | 1 | 2016-07-01 |
| AS202921 | CC INTERNET s.r.o. | 8 | 1 | 4 | 3 | 2016-05-03 |
| AS202948 | FORTUNA GAME a.s. | 2 | 0 | 2 | 0 | 2018-04-25 |
| AS202979 | NGA Services, spol. s r.o. | 1 | 1 | 3 | 2 | 2016-04-21 |
| AS199350 | Ministerstvo financi | 1 | 1 | 1 | 0 | 2013-03-01 |
| AS199665 | RADIOLINKplus.cz | 1 | 1 | 4 | 0 | 2012-10-17 |
| AS205345 | HoralNET s.r.o. | 1 | 1 | 1 | 0 | 2017-09-18 |
| AS205400 | VIVO CONNECTION spol. s r.o. | 2 | 1 | 2 | 1 | 2017-09-05 |
| AS205653 | Jumpshot s.r.o. | 2 | 0 | 1 | 0 | 2017-06-30 |
| AS205968 | GeneralNet s.r.o. | 1 | 0 | 1 | 0 | 2017-04-25 |
| AS200828 | TERMS a.s. | 1 | 1 | 2 | 0 | 2015-04-07 |
| AS200848 | ISP Alliance a.s. | 2 | 1 | 1 | 1 | 2015-03-30 |
| AS203165 | Statni pokladna Centrum sdilenych sluzeb, s.p. | 3 | 3 | 4 | 0 | 2016-03-17 |
| AS203299 | Ivo Hazmuk | 1 | 1 | 1 | 0 | 2016-02-19 |
| AS203365 | Optet network, s. r. o. | 1 | 0 | 3 | 0 | 2016-02-04 |
| AS203450 | Edera Group a.s. | 1 | 1 | 1 | 0 | 2016-01-15 |
| AS203645 | Jan Ryznar | 2 | 12 | 1 | 0 | 2016-01-07 |
| AS204007 | Kleissner Investments s.r.o. | 4 | 1 | 2 | 0 | 2018-04-11 |
| AS201263 | Brno University of Technology | 1 | 1 | 1 | 1 | 2014-12-09 |
| AS201348 | GH-Networks, s.r.o. | 0 | 1 | 0 | 1 | 2022-11-17 |
| AS201625 | United Networks SE | 1 | 1 | 1 | 0 | 2014-09-01 |
| AS201648 | Plzensky kraj | 2 | 1 | 1 | 0 | 2014-08-25 |
| AS201654 | Web4Soft Internet s.r.o. | 2 | 1 | 1 | 0 | 2014-08-21 |
| AS198103 | CCS Ceska spolecnost pro platebni karty s.r.o. | 3 | 0 | 2 | 0 | 2011-10-03 |
| AS198143 | Ceska Posta s.p. | 3 | 1 | 2 | 1 | 2011-10-13 |
| AS198977 | UnArtel s.r.o. | 2 | 1 | 1 | 0 | 2012-07-05 |
| AS63113 | Globecorp Networks | 8 | 0 | 9 | 0 | 2014-07-18 |
| AS15935 | Czech republic | 13 | 3 | 24 | 1 | 2000-11-07 |
| AS16019 | Vodafone Czech Republic a.s. | 93 | 16 | 92 | 66 | 2000-11-24 |
| AS6881 | NIX.CZ z.s.p.o. | 2 | 1 | 5 | 7 | 1996-12-23 |
| AS8646 | cloudinfrastack, s.r.o. | 1 | 0 | 6 | 0 | 2015-10-13 |
| AS25321 | Brink's Cash Solutions (CZ), a.s. | 1 | 0 | 2 | 0 | 2002-10-01 |
| AS28972 | Jihlava | 8 | 2 | 7 | 3 | 2003-04-24 |
| AS29086 | G-NET | 5 | 1 | 4 | 1 | 2003-05-30 |
| AS29504 | Freenet Liberec, z.s. | 1 | 1 | 4 | 3 | 2015-05-27 |
| AS33943 | Cesky Bezdrat, s.r.o. | 1 | 1 | 1 | 1 | 2004-09-14 |
| AS21205 | ING WholeSale Bank | 1 | 0 | 1 | 0 | 2001-09-26 |
| AS57279 | Sauron CZ s.r.o. | 3 | 1 | 3 | 1 | 2011-09-14 |
| AS57287 | OtavaNet s.r.o. | 1 | 1 | 1 | 1 | 2011-09-14 |
| AS57823 | INERCOM, s.r.o. | 1 | 1 | 1 | 1 | 2012-02-16 |
| AS57825 | MoravanyNET s.r.o. | 2 | 1 | 1 | 1 | 2021-01-08 |
| AS50975 | KYOCERA AVX Components s.r.o. | 1 | 0 | 2 | 0 | 2010-05-06 |
| AS50980 | E3.cz, sro | 1 | 0 | 1 | 0 | 2016-01-07 |
| AS51524 | Ales Tesacek | 1 | 0 | 1 | 0 | 2010-09-17 |
| AS61296 | TechCom s.r.o. | 2 | 1 | 5 | 2 | 2017-02-27 |
| AS62011 | UNHfree.net z.s. | 2 | 0 | 5 | 0 | 2014-03-25 |
| AS62083 | Fio banka, a.s. | 2 | 1 | 2 | 1 | 2014-02-20 |
| AS62405 | Brouzdal, s.r.o. | 1 | 1 | 1 | 1 | 2013-10-07 |
| AS59664 | Opton s.r.o. | 1 | 0 | 1 | 0 | 2012-09-14 |
| AS198002 | FDLnet.CZ, s.r.o. | 1 | 1 | 1 | 0 | 2011-08-17 |
| AS198101 | Kooperativa pojistovna, a.s., Vienna Insurance Group | 6 | 2 | 8 | 7 | 2012-02-07 |
| AS198161 | Sokolovska uhelna, pravni nastupce, a.s. | 2 | 1 | 1 | 0 | 2012-04-23 |
| AS198403 | Matrigo s.r.o. | 4 | 1 | 1 | 0 | 2012-01-13 |
| AS198605 | AVAST Software s.r.o. | 75 | 6 | 14 | 5 | 2012-03-21 |
| AS52084 | ATL Obchodni s.r.o. | 1 | 0 | 1 | 0 | 2010-12-23 |
| AS52092 | Peering.cz | 2 | 1 | 1 | 2 | 2010-12-27 |
| AS52176 | TTC TELEKOMUNIKACE s.r.o. | 2 | 1 | 3 | 1 | 2011-01-20 |
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| AS34819 | H17 Networks, s.r.o. | 1 | 0 | 3 | 2 | 2019-09-27 |
| AS24971 | Czech Republic / www.master.cz | 34 | 13 | 13 | 8 | 2002-06-11 |
| AS25512 | The Czech Republic | 13 | 1 | 24 | 14 | 2002-12-17 |
| AS196762 | ALKOM Security, a.s. | 1 | 0 | 1 | 0 | 2011-02-03 |
| AS196843 | KHnet.info, z.s. | 2 | 1 | 5 | 2 | 2009-10-27 |
| AS196861 | DIGITAL ACTION s.r.o. | 2 | 1 | 2 | 1 | 2009-11-30 |
| AS196943 | Vissado s.r.o. | 1 | 1 | 1 | 0 | 2010-02-19 |
| AS197019 | WEDOS Internet, a.s. | 5 | 1 | 8 | 6 | 2010-07-22 |
| AS197029 | LAM plus s.r.o. | 2 | 1 | 5 | 3 | 2010-04-20 |
| AS197197 | M.NET STUDENKA s. r. o. | 1 | 1 | 4 | 1 | 2010-07-28 |
| AS197296 | United Networks SE | 4 | 1 | 1 | 0 | 2011-01-18 |
| AS197565 | NHK Solutions s.r.o. | 1 | 0 | 1 | 0 | 2011-02-09 |
| AS197694 | Municipal Office of the City Prague | 2 | 0 | 1 | 0 | 2011-03-28 |
| AS197846 | Radovan Ochvat trading as SAO Computers | 2 | 0 | 1 | 0 | 2011-05-26 |
| AS197895 | ONYX engineering, spol. s r. o. | 1 | 1 | 1 | 1 | 2011-06-15 |
| AS52058 | za200.cz s.r.o. | 2 | 0 | 2 | 0 | 2010-12-21 |
| AS197920 | SKODA ICT s.r.o. | 2 | 0 | 2 | 0 | 2011-06-27 |
| AS198031 | Trustica s.r.o. | 1 | 1 | 1 | 1 | 2011-09-08 |
| AS198167 | AppToCloud servers, vps | 7 | 1 | 6 | 1 | 2011-10-25 |
| AS198627 | Shoptet, a.s. | 1 | 1 | 1 | 0 | 2023-05-05 |
| AS198668 | Tlapnet s.r.o. | 11 | 4 | 1 | 0 | 2012-04-10 |
| AS198814 | ALPHA StylSoft, s.r.o. | 1 | 1 | 1 | 0 | 2012-05-23 |
| AS198991 | TV Nova sro | 1 | 0 | 1 | 0 | 2012-07-10 |
| AS199298 | Jan Stetina | 1 | 1 | 4 | 3 | 2013-03-20 |
| AS199405 | Oslavany.NET, spolek | 1 | 1 | 4 | 3 | 2013-02-01 |
| AS199604 | OLOMOUCKY KRAJ | 1 | 1 | 2 | 2 | 2012-11-09 |
| AS199803 | ComSource s.r.o. | 2 | 1 | 17 | 8 | 2014-01-21 |
| AS59959 | SferiaNET.cz s.r.o. | 2 | 1 | 6 | 2 | 2018-01-26 |
| AS60529 | Miroslav Klement | 1 | 0 | 1 | 0 | 2013-07-02 |
| AS60592 | Gransy s.r.o. http://gransy.com | 19 | 3 | 12 | 7 | 2013-06-19 |
| AS51210 | KRAXNET s.r.o. | 1 | 1 | 1 | 1 | 2010-06-23 |
| AS51248 | Host-Telecom.com s.r.o. | 19 | 4 | 4 | 9 | 2010-06-30 |
| AS51331 | SychrovNET s.r.o | 7 | 3 | 8 | 3 | 2018-03-01 |
| AS51400 | SPOJE.NET s.r.o. | 1 | 1 | 3 | 1 | 2010-08-13 |
| AS51586 | ServerZone s.r.o. | 2 | 2 | 1 | 1 | 2023-01-17 |
| AS56891 | Narodni rozvojova banka, a.s. | 1 | 0 | 2 | 0 | 2011-06-06 |
| AS57007 | NITEX ISP s.r.o. | 1 | 1 | 5 | 2 | 2011-07-01 |
| AS57077 | AB-NET s.r.o. | 2 | 1 | 1 | 1 | 2011-07-14 |
| AS57188 | ORKA systems, s.r.o. | 3 | 1 | 2 | 2 | 2011-08-15 |
| AS57496 | AIRESS CESKO s.r.o. | 1 | 1 | 2 | 2 | 2011-11-14 |
| AS57707 | Greendata s.r.o. | 6 | 1 | 3 | 2 | 2012-01-20 |
| AS61981 | Mach3net s.r.o. | 2 | 1 | 1 | 1 | 2014-04-04 |
| AS62099 | JM-Net, z.s. | 4 | 2 | 5 | 3 | 2014-02-14 |
| AS210958 | Fastport a.s. | 2 | 1 | 2 | 0 | 2021-08-03 |
| AS211085 | amccomp s.r.o. | 0 | 1 | 0 | 1 | 2021-07-01 |
| AS212224 | Coolhousing s.r.o. | 1 | 1 | 1 | 1 | 2020-12-03 |
| AS213057 | innogy Ceska republika a.s | 3 | 0 | 2 | 0 | 2020-06-19 |
| AS213152 | Narodni bezpecnostni urad Czech Republic | 2 | 1 | 2 | 2 | 2020-06-02 |
| AS209621 | DOBNET, z.s. | 1 | 1 | 1 | 0 | 2019-01-07 |
| AS211334 | MASTER IT Technologies, a.s. | 1 | 0 | 1 | 0 | 2021-05-12 |
| AS211594 | Peernet s.r.o. | 1 | 1 | 1 | 0 | 2021-03-19 |
| AS212138 | Technicke site Brno, akciova spolecnost | 2 | 0 | 1 | 0 | 2020-12-17 |
| AS213387 | TeSuNet s.r.o. | 1 | 0 | 4 | 0 | 2020-04-07 |