Autonomous System
AS49033 Critical Core BV
HostingActiveNetherlandsRIPE
AS49033 (CRITICALCORE) is a hosting network operated by Critical Core BV in Netherlands, registered with RIPE. It has 15 IPv4 prefixes with 14,592 addresses and 2 IPv6 prefixes, which makes it the 8,340th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses14,592in 15 prefixes
IPv6 prefixes2≈ 1.3 × 10³⁰ addresses
Size rank#8,340of 82,200 active ASNs
Details
OrganizationCritical Core BV
AS nameCRITICALCORE
Websitecriticalcore.nl
Country Netherlands (NL)
Network typeHosting
RegistryRIPE
Abuse contactabuse@criticalcore.nl
Registered2016-10-04
Last updated2025-12-03
IPv4 prefixes
15 prefixes · 14,592 addresses| Network | Addresses | First – last address |
|---|---|---|
| 45.8.236.0/22 | 1,024 | 45.8.236.0 – 45.8.239.255 |
| 68.64.204.0/22 | 1,024 | 68.64.204.0 – 68.64.207.255 |
| 94.46.216.0/22 | 1,024 | 94.46.216.0 – 94.46.219.255 |
| 103.66.56.0/22 | 1,024 | 103.66.56.0 – 103.66.59.255 |
| 103.104.60.0/22 | 1,024 | 103.104.60.0 – 103.104.63.255 |
| 113.212.72.0/22 | 1,024 | 113.212.72.0 – 113.212.75.255 |
| 185.91.92.0/22 | 1,024 | 185.91.92.0 – 185.91.95.255 |
| 185.116.144.0/22 | 1,024 | 185.116.144.0 – 185.116.147.255 |
| 185.166.88.0/22 | 1,024 | 185.166.88.0 – 185.166.91.255 |
| 185.171.48.0/22 | 1,024 | 185.171.48.0 – 185.171.51.255 |
| 185.232.160.0/22 | 1,024 | 185.232.160.0 – 185.232.163.255 |
| 185.238.108.0/22 | 1,024 | 185.238.108.0 – 185.238.111.255 |
| 204.8.80.0/22 | 1,024 | 204.8.80.0 – 204.8.83.255 |
| 216.152.64.0/22 | 1,024 | 216.152.64.0 – 216.152.67.255 |
| 95.143.97.0/24 | 256 | 95.143.97.0 – 95.143.97.255 |
45.8.236.0/22 68.64.204.0/22 94.46.216.0/22 103.66.56.0/22 103.104.60.0/22 113.212.72.0/22 185.91.92.0/22 185.116.144.0/22 185.166.88.0/22 185.171.48.0/22 185.232.160.0/22 185.238.108.0/22 204.8.80.0/22 216.152.64.0/22 95.143.97.0/24
IPv6 prefixes
2 prefixes- 2a0f:dcc0::/29
- 2a0f:ddc0::/29
2a0f:dcc0::/29 2a0f:ddc0::/29
Query AS49033 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=AS49033&key=YOUR_API_KEY"Any address in its prefixes resolves to AS49033, with or without a key:
curl "https://api.ipapi.is/?q=45.8.236.1"Largest networks in Netherlands
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