| Prefix | Description | |
|---|---|---|
|
80.78.144.0/20 | O2 Czech Republic, a.s. |
|
88.83.224.0/19 | O2 Czech Republic, a.s. |
|
89.190.40.0/21 | O2 Czech Republic, a.s. |
|
89.190.48.0/20 | O2 Czech Republic, a.s. |
|
109.105.32.0/19 | O2 Czech Republic, a.s. |
|
185.8.188.0/22 | O2 Czech Republic, a.s. |
|
193.17.248.0/22 | ZEAL s.r.o. |
|
195.78.122.0/23 | ZEAL s.r.o. |
|
212.4.128.0/19 | O2 Czech Republic, a.s. |
|
212.96.160.0/19 | O2 Czech Republic, a.s. |
|
213.211.32.0/19 | O2 Czech Republic, a.s. |
|
2001:4ba8::/29 | O2 Czech Republic, a.s. |
|
2a0b:bb41::/32 | Netstone s.r.o. |


| ASN | Description | IPv4 | IPv6 | |
|---|---|---|---|---|
|
AS16246 | O2 Czech Republic, a.s. | ✔ | ✔ |

| ASN | Description | IPv4 | IPv6 | |
|---|---|---|---|---|
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AS16246 | O2 Czech Republic, a.s. | ✔ | ✔ |
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AS213354 | INTERNATIONAL HOSTING SOLUTIONS LLP | ✔ | ✔ |
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AS51424 | Jiri Sperl | ✔ | ✘ |
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AS197798 | Net-Connect s.r.o. | ✔ | ✔ |
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AS204886 | Metropolitni sit Humpolec spol. s r.o. | ✔ | ✔ |
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AS211334 | MASTER IT Technologies, a.s. | ✔ | ✘ |
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AS196815 | LAN servis s.r.o. | ✔ | ✘ |
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AS47941 | Red Hat Ltd | ✔ | ✘ |
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AS198620 | Bralu Jurjanu biedriba | ✔ | ✘ |
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AS205947 | NDC ICT Solutions s.r.o. | ✔ | ✘ |
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AS25192 | CZ.NIC, z.s.p.o. | ✔ | ✘ |
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AS202979 | NGA Services, spol. s r.o. | ✔ | ✔ |
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AS48091 | Kraj Vysocina | ✔ | ✔ |

| ASN | Description | IPv4 | IPv6 | |
|---|---|---|---|---|
|
AS213354 | INTERNATIONAL HOSTING SOLUTIONS LLP | ✔ | ✔ |
|
AS51424 | Jiri Sperl | ✔ | ✘ |
|
AS197798 | Net-Connect s.r.o. | ✔ | ✔ |
|
AS204886 | Metropolitni sit Humpolec spol. s r.o. | ✔ | ✔ |
|
AS47941 | Red Hat Ltd | ✔ | ✘ |
|
AS198620 | Bralu Jurjanu biedriba | ✔ | ✘ |
|
AS211334 | MASTER IT Technologies, a.s. | ✔ | ✘ |
|
AS25192 | CZ.NIC, z.s.p.o. | ✔ | ✘ |
|
AS202979 | NGA Services, spol. s r.o. | ✔ | ✔ |
|
AS48091 | Kraj Vysocina | ✔ | ✔ |
|
AS196815 | LAN servis s.r.o. | ✔ | ✘ |
|
AS205947 | NDC ICT Solutions s.r.o. | ✔ | ✘ |
aut-num: AS12570 as-name: ITSELF descr: Network and internet service provider. descr: Czech Republic remarks: ======================= Upstream providers ======================== mp-import: afi any.unicast from AS3257 accept ANY mp-import: afi any.unicast from AS6939 accept ANY mp-import: afi any.unicast from AS9002 accept ANY mp-export: afi any.unicast to AS3257 announce AS-NEJCZ-TRANSIT mp-export: afi any.unicast to AS6939 announce AS-NEJCZ-TRANSIT mp-export: afi any.unicast to AS9002 announce AS-NEJCZ-TRANSIT remarks: ========================= Customers ========================== mp-import: afi any.unicast from AS12570:AS-CUSTOMERS action pref=900; accept <AS12570:AS-CUSTOMERS+$> mp-export: afi any.unicast to AS12570:AS-CUSTOMERS announce ANY remarks: ======================= NIX peerings ========================== mp-import: from AS-NIXCZ-RSCLIENTS action pref=500; accept ANY mp-export: to AS-NIXCZ-RSCLIENTS announce AS-NEJCZ-TRANSIT remarks: = NIX.CZ route server peerings mp-import: from AS12570:AS-NIX-PEERS action pref=500; accept ANY mp-export: to AS12570:AS-NIX-PEERS announce AS-CZECHBONE remarks: = NIX.CZ direct peerings mp-import: from AS-NIXSK-RSCLIENTS action pref=500; accept ANY mp-export: to AS-NIXSK-RSCLIENTS announce AS-CZECHBONE remarks: = NIX.SK route server peerings remarks: ======================= Direct peerings ========================== mp-import: afi any.unicast from AS15169 accept AS15169 mp-export: afi any.unicast to AS15169 announce AS-NEJCZ-TRANSIT remarks: -------------------------------------------------------------------------------------------------------- remarks: remarks: org: ORG-STaN1-RIPE admin-c: DUMY-RIPE tech-c: DUMY-RIPE remarks: -------------------------------------------------------------------------------------------------------- remarks: remarks: BGP communities accepted from downstream: remarks: 1. Blackhole remarks: 12570:666 remarks: remarks: -------------------------------------------------------------------------------------------------------- remarks: remarks: Routing issues and peering requests: noc at itself.cz remarks: remarks: -------------------------------------------------------------------------------------------------------- remarks: remarks: This Autonomous System is present at the following exchanges: NIX-CZ, NIX-SK and SIX-SK. remarks: remarks: -------------------------------------------------------------------------------------------------------- remarks: status: ASSIGNED mnt-by: RIPE-NCC-END-MNT mnt-by: AS5610-MTN created: 2002-05-27T13:11:15Z last-modified: 2024-06-20T15:31:33Z 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-STaN1-RIPE org-name: O2 Czech Republic, a.s. country: CZ org-type: LIR address: Dummy address for ORG-STaN1-RIPE # Email removed, Log into bgp.tools to see whois emails abuse-c: AR14410-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: AS5610-MTN mnt-by: RIPE-NCC-HM-MNT mnt-by: AS5610-MTN created: 2004-04-17T11:04:17Z last-modified: 2020-12-16T12:31:56Z 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: 2026-03-11T03:23:49Z UTC
| - | Member | ASN Count |
|---|---|---|
| RADB | as-btn-customers | 1495 |
| RIPE | as5578:as-sixpeers | 51 |
| RIPE | as-cecomczcust-transit | 41220 |
| LEVEL3 | as-sprint-origins | 7309 |
| LEVEL3 | as-level3-origins-eu | 0 |
| RIPE | as-to2-nix-peer | 63 |
| RIPE | as-ebone | 79534 |
| RIPE | as12570:as-fenix | 1 |
| RIPE | as-sixsk-members | 57 |
| RIPE | as-emaxsixpeers | 39 |
| RIPE | as-43413_nt-nix | 69 |
| LEVEL3 | as-level3-origins-na | 0 |
| RIPE | as25192:as-transit | 9 |
| RIPE | as-cb-cz | 2 |
| RIPE | as24971:as-mai-nix-peer | 88460 |
| RIPE | as-czechbone | 87 |
| RIPE | as-cesnet-nix-peers | 89978 |
| RIPE | as42000:as-nixcz-peerings | 80 |
IPv4: 250
IPv6: 100
| Name | IPv4 | IPv6 | Link Speed | |
|---|---|---|---|---|
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BR-IX | 185.1.25.14 | 2001:7f8:87::14 | 10 gbps |