Autonomous System
AS5610 O2 Czech Republic, a.s.
ISPActiveCzechiaRIPE
AS5610 (O2-CZECH-REPUBLIC) is an ISP network operated by O2 Czech Republic, a.s. in Czechia, registered with RIPE. It has 67 IPv4 prefixes with 2,327,808 addresses and 5 IPv6 prefixes, which makes it the 228th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses2,327,808in 67 prefixes
IPv6 prefixes5≈ 9.5 × 10²⁹ addresses
Size rank#228of 82,200 active ASNs
Details
OrganizationO2 Czech Republic, a.s.
AS nameO2-CZECH-REPUBLIC
Websiteo2.cz
Country Czechia (CZ)
Network typeISP
RegistryRIPE
Abuse contactabuse@o2.cz
Registered2002-07-22
Last updated2024-06-12
IPv4 prefixes
67 prefixes · 2,327,808 addresses| Network | Addresses | First – last address |
|---|---|---|
| 88.100.0.0/14 | 262,144 | 88.100.0.0 – 88.103.255.255 |
| 90.180.0.0/14 | 262,144 | 90.180.0.0 – 90.183.255.255 |
| 85.70.0.0/15 | 131,072 | 85.70.0.0 – 85.71.255.255 |
| 85.160.0.0/15 | 131,072 | 85.160.0.0 – 85.161.255.255 |
| 88.100.0.0/15 | 131,072 | 88.100.0.0 – 88.101.255.255 |
| 90.178.0.0/15 | 131,072 | 90.178.0.0 – 90.179.255.255 |
| 109.80.0.0/15 | 131,072 | 109.80.0.0 – 109.81.255.255 |
| 80.188.0.0/16 | 65,536 | 80.188.0.0 – 80.188.255.255 |
| 83.208.0.0/16 | 65,536 | 83.208.0.0 – 83.208.255.255 |
| 85.70.0.0/16 | 65,536 | 85.70.0.0 – 85.70.255.255 |
| 85.71.0.0/16 | 65,536 | 85.71.0.0 – 85.71.255.255 |
| 88.102.0.0/16 | 65,536 | 88.102.0.0 – 88.102.255.255 |
| 90.177.0.0/16 | 65,536 | 90.177.0.0 – 90.177.255.255 |
| 90.181.0.0/16 | 65,536 | 90.181.0.0 – 90.181.255.255 |
| 90.182.0.0/16 | 65,536 | 90.182.0.0 – 90.182.255.255 |
| 90.183.0.0/16 | 65,536 | 90.183.0.0 – 90.183.255.255 |
| 160.218.0.0/16 | 65,536 | 160.218.0.0 – 160.218.255.255 |
| 194.228.0.0/16 | 65,536 | 194.228.0.0 – 194.228.255.255 |
| 37.188.128.0/17 | 32,768 | 37.188.128.0 – 37.188.255.255 |
| 80.188.0.0/17 | 32,768 | 80.188.0.0 – 80.188.127.255 |
| 80.188.128.0/17 | 32,768 | 80.188.128.0 – 80.188.255.255 |
| 85.70.0.0/17 | 32,768 | 85.70.0.0 – 85.70.127.255 |
| 85.70.128.0/17 | 32,768 | 85.70.128.0 – 85.70.255.255 |
| 90.176.128.0/17 | 32,768 | 90.176.128.0 – 90.176.255.255 |
| 194.228.0.0/17 | 32,768 | 194.228.0.0 – 194.228.127.255 |
88.100.0.0/14 90.180.0.0/14 85.70.0.0/15 85.160.0.0/15 88.100.0.0/15 90.178.0.0/15 109.80.0.0/15 80.188.0.0/16 83.208.0.0/16 85.70.0.0/16 85.71.0.0/16 88.102.0.0/16 90.177.0.0/16 90.181.0.0/16 90.182.0.0/16 90.183.0.0/16 160.218.0.0/16 194.228.0.0/16 37.188.128.0/17 80.188.0.0/17 80.188.128.0/17 85.70.0.0/17 85.70.128.0/17 90.176.128.0/17 194.228.0.0/17
The 25 largest of 67. The API and the database have all of them.
IPv6 prefixes
5 prefixes- 2a00:1028::/29
- 2a02:9b8::/31
- 2001:41d8::/32
- 2a00:1028::/32
- 2001:67c:dd4::/48
2a00:1028::/29 2a02:9b8::/31 2001:41d8::/32 2a00:1028::/32 2001:67c:dd4::/48
Query AS5610 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=AS5610&key=YOUR_API_KEY"Any address in its prefixes resolves to AS5610, with or without a key:
curl "https://api.ipapi.is/?q=88.100.0.1"Other networks of O2 Czech Republic, a.s.
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