Autonomous System
AS12676 HKN GmbH
ISPActiveGermanyRIPE
AS12676 (NCORE-AS) is an ISP network operated by HKN GmbH in Germany, registered with RIPE. It has 12 IPv4 prefixes with 74,496 addresses and 6 IPv6 prefixes, which makes it the 2,834th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses74,496in 12 prefixes
IPv6 prefixes6≈ 1.2 × 10²⁹ addresses
Size rank#2,834of 82,200 active ASNs
Details
OrganizationHKN GmbH
AS nameNCORE-AS
Websitecogentco.com
Country Germany (DE)
Network typeISP
RegistryRIPE
Abuse contactabuse@hkn.de
Registered2002-08-30
Last updated2026-01-12
IPv4 prefixes
12 prefixes · 74,496 addresses| Network | Addresses | First – last address |
|---|---|---|
| 213.9.0.0/17 | 32,768 | 213.9.0.0 – 213.9.127.255 |
| 88.205.32.0/19 | 8,192 | 88.205.32.0 – 88.205.63.255 |
| 88.205.64.0/19 | 8,192 | 88.205.64.0 – 88.205.95.255 |
| 88.205.96.0/19 | 8,192 | 88.205.96.0 – 88.205.127.255 |
| 212.46.96.0/19 | 8,192 | 212.46.96.0 – 212.46.127.255 |
| 88.205.0.0/20 | 4,096 | 88.205.0.0 – 88.205.15.255 |
| 109.234.248.0/21 | 2,048 | 109.234.248.0 – 109.234.255.255 |
| 185.90.228.0/22 | 1,024 | 185.90.228.0 – 185.90.231.255 |
| 185.146.60.0/22 | 1,024 | 185.146.60.0 – 185.146.63.255 |
| 91.208.74.0/24 | 256 | 91.208.74.0 – 91.208.74.255 |
| 94.100.134.0/24 | 256 | 94.100.134.0 – 94.100.134.255 |
| 193.143.122.0/24 | 256 | 193.143.122.0 – 193.143.122.255 |
213.9.0.0/17 88.205.32.0/19 88.205.64.0/19 88.205.96.0/19 212.46.96.0/19 88.205.0.0/20 109.234.248.0/21 185.90.228.0/22 185.146.60.0/22 91.208.74.0/24 94.100.134.0/24 193.143.122.0/24
IPv6 prefixes
6 prefixes- 2a01:a740::/32
- 2a02:4c07:4000::/34
- 2a02:4c07:8000::/34
- 2a02:4c00::/40
- 2a02:4c00:100::/40
- 2a01:6780:4::/48
2a01:a740::/32 2a02:4c07:4000::/34 2a02:4c07:8000::/34 2a02:4c00::/40 2a02:4c00:100::/40 2a01:6780:4::/48
Query AS12676 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=AS12676&key=YOUR_API_KEY"Any address in its prefixes resolves to AS12676, with or without a key:
curl "https://api.ipapi.is/?q=213.9.0.1"Largest networks in Germany
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