AS61218 4b42.com
AS61218 is operated by 4b42.com and registered with RIPE NCC (DE) since 2019-02-28.
It announces 1 IPv4 and 2 IPv6 prefixes, 66% of them RPKI valid.
RIPE RIS sees 7 upstream and peer networks and 5 downstream networks next to it.
PeeringDB lists it as an NSP network at 3 internet exchanges and 5 facilities. Its peering policy is selective.
| Name | 4b42.com |
|---|---|
| Registry (RIR) | RIPE NCC |
| Country | Germany (DE) |
| Delegated on | 2019-02-28 |
| Network type | NSP, Europe |
| Peering policy | Selective |
| IRR as-set | AS-4B42 |
| Prefixes (IPv4 / IPv6) | 1 / 2 |
| RPKI valid | 66% (2 / 3) |
| Upstreams and peers | 7 |
| Downstream networks | 5 |
| Website | 4b42.com |
Routing health
- AS61218 announces 1 IPv4 and 2 IPv6 prefixes.
- 2 of 3 announced prefixes are RPKI valid.
- 1 announced prefixes are not covered by a ROA of AS61218 (they may have none, or another network’s).
- 7 upstreams and peers, 5 downstream networks seen.
For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.
Announced prefixes 3
- 143.246.177.0/24
- 2a0e:97c0:4b42::/48
- 2a14:c700::/29
Upstreams and peers 7
The networks RIPE RIS sees next to AS61218 in BGP paths, the most visible first.
Peering
Peering policy: Selective. Suggested max-prefix limits: 100 IPv4, 100 IPv6. PeeringDB record
| Exchange | Ports | Speed | Route server |
|---|---|---|---|
| DE-CIX Dusseldorf: DE-CIX Dusseldorf Peering LAN | 1 | 1G | Yes |
| DE-CIX Munich: DE-CIX Munich Peering LAN | 1 | 1G | Yes |
| SBIX Zurich: Switzerland | 1 | 10G | Yes |
| Facility | City | Country |
|---|---|---|
| Green Datacenter ZRH1 (fka: Green Lupfig) | Lupfig | CH |
| Hurricane Electric Fremont 2 | Fremont | US |
| KoloDC NL1 | Dronten | NL |
| WIIT Datacenter DUS1, DUS2, DUS3, DUS4, DUS6, DUS7 | Düsseldorf | DE |
| YOTTA NM1 | Panvel, Raigad, | IN |
More about AS61218
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 10:23 UTC. The country is where the AS number was registered, not necessarily where the network operates.