Autonomous System
AS12570 O2 Czech Republic, a.s.
ISPActiveCzechiaRIPE
AS12570 (ITSELF) is an ISP network operated by O2 Czech Republic, a.s. in Czechia, registered with RIPE. It has 11 IPv4 prefixes with 53,760 addresses and 2 IPv6 prefixes, which makes it the 4,189th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses53,760in 11 prefixes
IPv6 prefixes2≈ 7.1 × 10²⁹ addresses
Size rank#4,189of 82,200 active ASNs
Details
OrganizationO2 Czech Republic, a.s.
AS nameITSELF
Websiteo2.cz
Country Czechia (CZ)
Network typeISP
RegistryRIPE
Abuse contactabuse@o2.cz
Registered2002-05-27
Last updated2024-06-20
IPv4 prefixes
11 prefixes · 53,760 addresses| Network | Addresses | First – last address |
|---|---|---|
| 88.83.224.0/19 | 8,192 | 88.83.224.0 – 88.83.255.255 |
| 109.105.32.0/19 | 8,192 | 109.105.32.0 – 109.105.63.255 |
| 212.4.128.0/19 | 8,192 | 212.4.128.0 – 212.4.159.255 |
| 212.96.160.0/19 | 8,192 | 212.96.160.0 – 212.96.191.255 |
| 213.211.32.0/19 | 8,192 | 213.211.32.0 – 213.211.63.255 |
| 80.78.144.0/20 | 4,096 | 80.78.144.0 – 80.78.159.255 |
| 89.190.48.0/20 | 4,096 | 89.190.48.0 – 89.190.63.255 |
| 89.190.40.0/21 | 2,048 | 89.190.40.0 – 89.190.47.255 |
| 185.8.188.0/22 | 1,024 | 185.8.188.0 – 185.8.191.255 |
| 193.17.248.0/22 | 1,024 | 193.17.248.0 – 193.17.251.255 |
| 195.78.122.0/23 | 512 | 195.78.122.0 – 195.78.123.255 |
88.83.224.0/19 109.105.32.0/19 212.4.128.0/19 212.96.160.0/19 213.211.32.0/19 80.78.144.0/20 89.190.48.0/20 89.190.40.0/21 185.8.188.0/22 193.17.248.0/22 195.78.122.0/23
IPv6 prefixes
2 prefixes- 2001:4ba8::/29
- 2a0b:bb41::/32
2001:4ba8::/29 2a0b:bb41::/32
Query AS12570 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS12570&key=YOUR_API_KEY"Any address in its prefixes resolves to AS12570, with or without a key:
curl "https://api.ipapi.is/?q=88.83.224.1"Other networks of O2 Czech Republic, a.s.
AS5610 O2 Czech Republic, a.s.2,327,808 IPv4 addressesAS42908 O2 Czech Republic, a.s.183,296 IPv4 addressesAS16246 O2 Czech Republic, a.s.133,120 IPv4 addressesAS31246 O2 Czech Republic, a.s.66,560 IPv4 addressesAS41046 O2 Czech Republic, a.s.53,248 IPv4 addressesAS29321 O2 Czech Republic, a.s.15,360 IPv4 addresses
Largest networks in Czechia
AS5610 O2 Czech Republic, a.s.2,327,808 IPv4 addressesAS16019 Vodafone Czech Republic a.s.1,210,368 IPv4 addressesAS13036 T-Mobile Czech Republic a.s.992,256 IPv4 addressesAS2852 CESNET z.s.p.o.858,112 IPv4 addressesAS44546 ALFA TELECOM s.r.o.527,616 IPv4 addressesAS2571 DHL Information Services (Europe) s.r.o438,528 IPv4 addresses