CSL Computer Service Langenbach GmbH
AS5517 is CSL Computer Service Langenbach GmbH (nrw.net). It announces 139,264 IPv4 addresses in 3 prefixes, and 1 IPv6 prefixes.
Germany· RIPE· allocated 1996-01-16· business
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Germany139,264 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- CSL
- name
- CSL Computer Service Langenbach GmbH
- org
- ORG-cA14-RIPE
- org name
- CSL Computer Service Langenbach GmbH
- org address
- Hansaallee 191-193, D-40549, Duesseldorf, GERMANY
- org country
- DE
- country
- DE
- source
- ripe
- status
- ASSIGNED
- updated
- 2023-10-30
- maintainer
- RIPE-NCC-END-MNT|CSL-MNT
- abuse name
- CSL Computer Service Langenbach GmbH
- abuse email
- abuse@nrw.net
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- VPN IP29watchguard0.02%
- None here
- None here
- None here
- None here
- None here
- Hosting IP3,8402.76%
- None here
- None here
- None here
- SSH IP600.04%
- SMTP IP180.01%
- 0.02%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 159.25.0.0/16 | Germany | valid | 17 | 2026-10-02 |
| 194.176.0.0/19 | Germany | valid | 17 | 2026-10-02 |
| 194.245.0.0/16 | Germany | valid | 17 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2a01:4fc0::/34 | Germany | valid | 20 | 2026-10-02 |
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