| Prefix | Description | |
|---|---|---|
|
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5.39.200.0/23 | ISP Alliance a.s. |
|
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46.29.224.0/21 | ISP Alliance a.s. |
|
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78.111.112.0/20 | ISP Alliance a.s. |
|
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94.140.25.0/24 | HelaPC s.r.o. |
|
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148.59.93.0/24 | HelaPC s.r.o. |
|
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185.15.108.0/22 | ISP Alliance a.s. |
|
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185.52.172.0/24 | ISP Alliance a.s. |
|
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185.151.171.0/24 | ISP Alliance |
|
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193.107.160.0/22 | MACOnet s. r. o. |
|
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195.26.25.0/24 | Omcom s.r.o. |
|
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2a02:17a0::/29 | ISP Alliance a.s. |
|
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2a02:17a0:d000::/36 | ISP Alliance |
|
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2a03:2a80::/29 | ISP Alliance a.s. |
|
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2a03:2a82::/31 | ISP Alliance a.s. |
|
|
2a04:7bc0::/29 | ISP Alliance a.s. |
|
|
2a04:7bc7::/32 | ISP Alliance |
| ASN | Description | IPv4 | IPv6 | |
|---|---|---|---|---|
| AS39392 | SH.cz s.r.o. | ✔ | ✔ | |
| AS6939 | Hurricane Electric LLC | ✘ | ✔ | |
| AS1299 | Arelion (fka. Telia Carrier) | ✔ | ✔ | |
| AS13199 | Jaroslav Doubrava | ✔ | ✘ |
| ASN | Description | IPv4 | IPv6 | |
|---|---|---|---|---|
| AS6939 | Hurricane Electric LLC | ✔ | ✔ | |
| AS39392 | SH.cz s.r.o. | ✔ | ✔ | |
| AS35236 | UVT Internet s.r.o. | ✔ | ✔ | |
| AS204666 | Jiri Tlapak | ✔ | ✔ | |
| AS201476 | ISP Alliance a.s. | ✔ | ✔ | |
| AS6461 | Zayo Bandwidth | ✔ | ✔ | |
| AS44002 | Sys-DataCom s.r.o. | ✔ | ✔ | |
| AS210712 | ISP Alliance a.s. | ✔ | ✔ | |
| AS204064 | CEZNET s.r.o. | ✔ | ✔ | |
| AS207886 | ECOMP spol s r.o. | ✔ | ✔ | |
| AS29134 | Webglobe, s.r.o. | ✔ | ✔ | |
| AS33883 | TRIOPTIMUM s.r.o. | ✔ | ✔ | |
| AS197879 | HelaPC s.r.o. | ✔ | ✔ | |
| AS197296 | United Networks SE | ✔ | ✔ | |
| AS1299 | Arelion (fka. Telia Carrier) | ✔ | ✔ | |
| AS56566 | SATT a.s. | ✔ | ✔ | |
| AS20723 | AVONET, s.r.o. | ✔ | ✔ | |
| AS201654 | CEZNET s.r.o. | ✔ | ✔ | |
| AS44500 | Vlasimnet s.r.o. | ✔ | ✔ | |
| AS197393 | ISP Alliance a.s. | ✔ | ✔ | |
| AS202618 | Rychly drat, s.r.o. | ✔ | ✔ | |
| AS205002 | CUBESOL, s.r.o. | ✔ | ✔ | |
| AS201559 | United Networks SE | ✔ | ✔ | |
| AS50971 | JHComp s.r.o. | ✔ | ✔ | |
| AS201625 | United Networks SE | ✔ | ✔ | |
| AS202774 | ISP Alliance a.s. | ✔ | ✔ | |
| AS209621 | DOBNET, z.s. | ✔ | ✔ | |
| AS206951 | BMB-Green s.r.o. | ✔ | ✔ | |
| AS198814 | ALPHA StylSoft, s.r.o. | ✔ | ✔ | |
| AS47727 | Warnet.cz s.r.o. | ✔ | ✔ | |
| AS56624 | Rtyne.net s.r.o. | ✔ | ✘ | |
| AS39455 | Jiri Tlapak | ✔ | ✘ | |
| AS50163 | Altnet s.r.o. | ✔ | ✔ | |
| AS20562 | Open Peering (Broadband Hosting B.V.) | ✔ | ✔ | |
| AS13199 | Jaroslav Doubrava | ✔ | ✔ | |
| AS35046 | OMEGA plus Chrudim s.r.o. | ✔ | ✔ | |
| AS212975 | TeamCity s.r.o. | ✔ | ✔ | |
| AS50415 | Ahosting a.s. | ✔ | ✔ | |
| AS202921 | CC INTERNET s.r.o. | ✔ | ✘ | |
| AS22356 | Durand do Brasil Ltda | ✔ | ✔ | |
| AS6204 | INTERKVM HOST SRL | ✔ | ✔ | |
| AS205535 | Windyghoul s.r.o. | ✘ | ✔ | |
| AS9136 | WOBCOM GmbH | ✔ | ✔ | |
| AS202877 | VEJNET.CZ s.r.o. | ✔ | ✔ | |
| AS57279 | Sauron CZ s.r.o. | ✔ | ✘ | |
| AS24940 | Hetzner Online GmbH | ✔ | ✔ | |
| AS216265 | ARISTO NETWORKS LTD | ✔ | ✘ | |
| AS208847 | Martin Fryzl | ✔ | ✘ | |
| AS52084 | ISP Alliance a.s. | ✔ | ✘ | |
| AS201464 | ISP Alliance a.s. | ✔ | ✘ | |
| AS201533 | United Networks SE | ✔ | ✘ | |
| AS202131 | ISP Alliance a.s. | ✔ | ✘ | |
| AS60529 | Miroslav Klement | ✔ | ✘ | |
| AS8218 | Zayo Europe | ✔ | ✔ | |
| AS12570 | O2 Czech Republic, a.s. | ✔ | ✘ | |
| AS60068 | Datacamp Limited (CDN77 / DataPacket) | ✔ | ✔ | |
| AS57077 | AB-NET s.r.o. | ✔ | ✘ | |
| AS14840 | BR.DIGITAL | ✔ | ✔ | |
| AS200249 | Products Up GmbH | ✔ | ✔ | |
| AS49544 | i3D.net B.V | ✔ | ✔ | |
| AS47692 | Nessus GmbH | ✔ | ✘ | |
| AS1764 | Next Layer Telecommunications | ✔ | ✔ | |
| AS42739 | Hawe Telekom S.A. in Restructuring | ✔ | ✔ | |
| AS16276 | OVH SAS | ✔ | ✔ | |
| AS8881 | 1&1 Versatel GmbH | ✔ | ✔ | |
| AS207994 | Blockchain Creek B.V. | ✔ | ✘ | |
| AS8529 | Zain Omantel International FZ-LLC | ✔ | ✔ | |
| AS15614 | Dragon Internet a.s. | ✔ | ✘ | |
| AS50629 | LWLcom GmbH | ✔ | ✔ | |
| AS13335 | Cloudflare, Inc. | ✔ | ✔ | |
| AS24482 | SG.GS | ✔ | ✔ | |
| AS51400 | SPOJE.NET s.r.o. | ✔ | ✔ | |
| AS60345 | icixs networks GmbH | ✔ | ✘ | |
| AS50698 | TETA s.r.o. | ✔ | ✔ | |
| AS57344 | Telehouse EAD | ✔ | ✘ | |
| AS51184 | Fonira Telekom GmbH | ✔ | ✔ | |
| AS49121 | Infinity Telecom, s.r.o. | ✔ | ✔ | |
| AS40994 | Alwyzon (Hohl IT) | ✔ | ✔ | |
| AS32590 | Valve Corporation | ✔ | ✔ | |
| AS199524 | Gcore S.A. | ✔ | ✔ | |
| AS196735 | PODA a.s. | ✔ | ✘ | |
| AS8801 | Rocket Fibre Ltd | ✔ | ✔ | |
| AS44066 | firstcolo GmbH | ✔ | ✔ | |
| AS8767 | M-net Telekommunikations GmbH | ✔ | ✔ | |
| AS53062 | ALT | GRUPO BRASIL TECPAR | ✔ | ✘ | |
| AS49025 | PRO-ZETA a.s. | ✔ | ✘ | |
| AS34170 | Aztelekom LLC | ✔ | ✔ | |
| AS41327 | Fiber Telecom S.p.A. | ✔ | ✔ | |
| AS8447 | A1 Telekom Austria AG | ✔ | ✔ | |
| AS2852 | CESNET z.s.p.o. | ✔ | ✘ | |
| AS44522 | Join-stock company "Internet Exchange"MSK-IX" | ✔ | ✘ | |
| AS21430 | WIA spol. s.r.o. | ✔ | ✘ | |
| AS42306 | Edera Group a.s. | ✔ | ✘ | |
| AS210139 | DPT s.r.o. | ✔ | ✘ | |
| AS16097 | HL komm Telekommunikations GmbH | ✔ | ✘ | |
| AS398465 | Rackdog LLC | ✔ | ✘ | |
| AS3212 | Telemach Slovenija d.o.o. | ✔ | ✘ | |
| AS21013 | eww ag | ✔ | ✘ | |
| AS35297 | Dataline LLC | ✔ | ✔ | |
| AS42473 | Anexia Cloud Solutions GmbH | ✔ | ✔ | |
| AS199405 | Oslavany.NET, spolek | ✔ | ✘ | |
| AS31117 | ENERGOTEL a.s. | ✔ | ✔ | |
| AS36236 | NetActuate, Inc | ✔ | ✔ | |
| AS44712 | eHAMnet, s.r.o. | ✔ | ✘ | |
| AS6663 | Türk Telekom International | ✔ | ✔ | |
| AS199081 | Lancom Ltd. | ✔ | ✔ | |
| AS132337 | Axclusive | ✔ | ✘ | |
| AS264409 | Huge Networks | ✔ | ✘ | |
| AS44306 | OMONIA d.o.o. | ✔ | ✘ | |
| AS202297 | Skylon Solutions Limited | ✔ | ✘ | |
| AS4455 | IX Reach Ltd | ✔ | ✘ | |
| AS29049 | Delta Telecom Ltd | ✔ | ✘ | |
| AS263444 | Open X Tecnologia Ltda | ✔ | ✔ | |
| AS34955 | Martin Vicenik | ✔ | ✘ | |
| AS62099 | JM-Networks, s.r.o. | ✔ | ✘ | |
| AS9498 | Bharti Airtel Ltd. | ✔ | ✘ | |
| AS29278 | Rackhost Zrt. | ✔ | ✘ | |
| AS24953 | NETPLANET GmbH | ✔ | ✘ | |
| AS202605 | EMPECOM, s.r.o. | ✔ | ✘ | |
| AS47200 | NIX.CZ Route Servers | ✔ | ✔ | |
| AS1820 | WNET TELECOM USA Corp. | ✔ | ✔ | |
| AS199803 | ComSource s.r.o. | ✔ | ✘ | |
| AS37721 | Virtual Technologies & Solutions | ✘ | ✔ | |
| AS6855 | Slovak Telekom, a.s. | ✔ | ✘ | |
| AS15943 | wilhelm.tel GmbH | ✘ | ✔ |
| ASN | Description | IPv4 | IPv6 | |
|---|---|---|---|---|
| AS35236 | UVT Internet s.r.o. | ✔ | ✔ | |
| AS201476 | ISP Alliance a.s. | ✔ | ✔ | |
| AS204666 | Jiri Tlapak | ✔ | ✔ | |
| AS44002 | Sys-DataCom s.r.o. | ✔ | ✔ | |
| AS210712 | ISP Alliance a.s. | ✔ | ✔ | |
| AS204064 | CEZNET s.r.o. | ✔ | ✔ | |
| AS207886 | ECOMP spol s r.o. | ✔ | ✔ | |
| AS29134 | Webglobe, s.r.o. | ✔ | ✔ | |
| AS33883 | TRIOPTIMUM s.r.o. | ✔ | ✔ | |
| AS197879 | HelaPC s.r.o. | ✔ | ✔ | |
| AS197296 | United Networks SE | ✔ | ✔ | |
| AS56566 | SATT a.s. | ✔ | ✔ | |
| AS20723 | AVONET, s.r.o. | ✔ | ✔ | |
| AS201654 | CEZNET s.r.o. | ✔ | ✔ | |
| AS197393 | ISP Alliance a.s. | ✔ | ✔ | |
| AS44500 | Vlasimnet s.r.o. | ✔ | ✔ | |
| AS202618 | Rychly drat, s.r.o. | ✔ | ✔ | |
| AS205002 | CUBESOL, s.r.o. | ✔ | ✔ | |
| AS206951 | BMB-Green s.r.o. | ✔ | ✔ | |
| AS209621 | DOBNET, z.s. | ✔ | ✔ | |
| AS201559 | United Networks SE | ✔ | ✔ | |
| AS202774 | ISP Alliance a.s. | ✔ | ✔ | |
| AS50971 | JHComp s.r.o. | ✔ | ✔ | |
| AS201625 | United Networks SE | ✔ | ✔ | |
| AS198814 | ALPHA StylSoft, s.r.o. | ✔ | ✔ | |
| AS47727 | Warnet.cz s.r.o. | ✔ | ✔ | |
| AS35046 | OMEGA plus Chrudim s.r.o. | ✔ | ✔ | |
| AS39455 | Jiri Tlapak | ✔ | ✘ | |
| AS56624 | Rtyne.net s.r.o. | ✔ | ✘ | |
| AS212975 | TeamCity s.r.o. | ✔ | ✔ | |
| AS50163 | Altnet s.r.o. | ✔ | ✔ | |
| AS50415 | Ahosting a.s. | ✔ | ✔ | |
| AS202921 | CC INTERNET s.r.o. | ✔ | ✘ | |
| AS205535 | Windyghoul s.r.o. | ✘ | ✔ | |
| AS202877 | VEJNET.CZ s.r.o. | ✔ | ✔ | |
| AS13199 | Jaroslav Doubrava | ✔ | ✔ | |
| AS57279 | Sauron CZ s.r.o. | ✔ | ✘ | |
| AS201464 | ISP Alliance a.s. | ✔ | ✘ | |
| AS52084 | ISP Alliance a.s. | ✔ | ✘ | |
| AS202131 | ISP Alliance a.s. | ✔ | ✘ | |
| AS201533 | United Networks SE | ✔ | ✘ | |
| AS208847 | Martin Fryzl | ✔ | ✘ | |
| AS60529 | Miroslav Klement | ✔ | ✘ | |
| AS57077 | AB-NET s.r.o. | ✔ | ✘ | |
| AS12570 | O2 Czech Republic, a.s. | ✔ | ✘ | |
| AS15614 | Dragon Internet a.s. | ✔ | ✘ | |
| AS196735 | PODA a.s. | ✔ | ✘ | |
| AS51400 | SPOJE.NET s.r.o. | ✔ | ✔ | |
| AS42306 | Edera Group a.s. | ✔ | ✘ | |
| AS210139 | DPT s.r.o. | ✔ | ✘ | |
| AS49025 | PRO-ZETA a.s. | ✔ | ✘ | |
| AS44522 | Join-stock company "Internet Exchange"MSK-IX" | ✔ | ✘ | |
| AS44712 | eHAMnet, s.r.o. | ✔ | ✘ | |
| AS199405 | Oslavany.NET, spolek | ✔ | ✘ | |
| AS34955 | Martin Vicenik | ✔ | ✘ | |
| AS202297 | Skylon Solutions Limited | ✔ | ✘ | |
| AS199803 | ComSource s.r.o. | ✔ | ✘ | |
| AS39392 | SH.cz s.r.o. | ✔ | ✘ | |
| AS60068 | Datacamp Limited (CDN77 / DataPacket) | ✔ | ✘ |
aut-num: AS47232 as-name: ISPAlliance org: ORG-GSa22-RIPE import: from AS21430 accept ANY import: from AS29208 accept ANY import: from AS197296 accept ANY import: from AS56624 accept ANY import: from AS49767 accept ANY import: from AS39392 accept ANY import: from AS35046 accept ANY import: from AS200059 accept ANY import-via: AS6777 from AS-ANY accept ANY export: to AS29208 announce AS-ISPALLIANCE-CZ export: to AS197296 announce ANY export: to AS56624 announce ANY export: to AS49767 announce ANY export: to AS39392 announce ANY export: to AS35046 announce ANY export: to AS200059 announce ANY export-via: AS6777 to AS-ANY announce AS-ISPALLIANCE-CZ remarks: This ASN is used for residential broadband ISPs services. remarks: ---------------------------------------------------------------------- remarks: TRANSIT IMPORT mp-import: afi any.unicast from AS47232:AS-TRANSIT accept ANY remarks: remarks: EXCHANGE POINTS IMPORT mp-import: afi any.unicast from AS47232:AS-IX accept ANY remarks: remarks: CUSTOMERS IMPORT mp-import: afi any.unicast from AS47232:AS-CUSTOMERS accept PeerAS remarks: ---------------------------------------------------------------------- remarks: remarks: ---------------------------------------------------------------------- remarks: TRANSIT EXPORT mp-export: afi any.unicast to AS47232:AS-TRANSIT announce AS-ISPALLIANCE-CZ remarks: remarks: EXCHANGE POINTS EXPORT mp-export: afi any.unicast to AS47232:AS-IX announce AS-ISPALLIANCE-CZ remarks: remarks: CUSTOMERS EXPORT mp-export: afi any.unicast to AS47232:AS-CUSTOMERS announce ANY remarks: ---------------------------------------------------------------------- remarks: admin-c: DUMY-RIPE tech-c: DUMY-RIPE status: ASSIGNED notify: ruzicka@grapesc.cz mnt-by: RIPE-NCC-END-MNT mnt-by: MNT-GRAPESC created: 2008-05-21T13:49:01Z last-modified: 2026-05-29T05:07:46Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** organisation: ORG-GSa22-RIPE org-name: ISP Alliance a.s. country: CZ org-type: LIR address: Dummy address for ORG-GSa22-RIPE # Email removed, Log into bgp.tools to see whois emails/phone numbers abuse-c: IA3261-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: MNT-GRAPESC mnt-by: RIPE-NCC-HM-MNT mnt-by: MNT-GRAPESC created: 2008-04-22T12:13:14Z last-modified: 2026-05-13T07:32:19Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: ****************************Last Update: 2026-06-05T03:26:12Z UTC
| - | Member | ASN Count |
|---|---|---|
| RIPE | as-ispalliance-peeringcz | 233 |
| RIPE | as34968:as-nl-ix-peers | 89 |
| RIPE | as-grapesc-cz | 54 |
| RIPE | as-43413_nt-nix | 69 |
| RIPE | as24971:as-mai-nix-peer | 89958 |
| RIPE | as-ispa-fenix | 233 |
| RIPE | as-gttcust | 91680 |
| RIPE | as-ispalliance-cz | 233 |
| RADB | as-hurricanev6 | 21127 |
| ALTDB | as-jarmtelco | 651 |
| RIPE | as-ispalliance-nix | 233 |
| RIPE | as204666:as-tlapnet-cz | 14 |
| RIPE | as8251:as-nix-peerings | 49 |
| RIPE | as-gttcust6 | 91117 |
| RIPE | as42000:as-nixcz-peerings | 80 |
IPv4: 500
IPv6: 100
| Name | IPv4 | IPv6 | Link Speed | |
|---|---|---|---|---|
| NIX.CZ | 91.210.16.143 | 2001:7f8:14::33:2 | 600 gbps | |
| Peering.cz | 185.0.20.22 | 2001:7f8:7f::22 | 200 gbps | |
| Peering.cz | 185.0.20.23 | 2001:7f8:7f::23 | 200 gbps | |
| NIX.CZ | 91.210.16.109 | 2001:7f8:14::33:1 | n/a |