CSL Computer Service Langenbach GmbH

Data as of 2026-07-26
GLEIF verified
LEI
3912000XKSMKJELZIE25
Registered name
CSL Computer Service Langenbach GmbH
Jurisdiction
DE
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks6 · 139,264 IPv4 addresses
IPv6 2 prefixes (largest 2a01:4fc0::/32)
All fragments 17 blocks across 3 clusters
Cluster ID213802245
RegistryBGP
Owner jurisdictionDE
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 3912000XKSMKJELZIE25
Shared handles clustered on 8 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
9 0 netblocks since 2026-07-05
2026-07-05 peak 9 2026-07-26

IP Ranges (6)

⬇ export CSV
CIDR Org name Registry Status Confidence
159.25.0.0/16 CSL Computer Service Langenbach GmbH BGP ANNOUNCED ● high
194.176.0.0/19 CSL Computer Service Langenbach GmbH BGP ANNOUNCED ● high
194.245.0.0/16 CSL Computer Service Langenbach GmbH BGP ANNOUNCED ● high
2a01:4fc0::/34 CSL Computer Service Langenbach GmbH BGP ANNOUNCED ● high
159.25.16.0/23 CSL Computer Service Langenbach GmbH RIPE LEGACY ● low
2a01:4fc0::/32 CSL Computer Service Langenbach GmbH RIPE ALLOCATED-BY-RIR ● low

IPv6 ranges (2)

CIDR
2a01:4fc0::/32
2a01:4fc0::/34

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (9 of 9)
No discrepancies found among checked blocks.

NIC Handles

AS5517 CSL-MNT CSL-MNT DUMY-RIPE DUMY-RIPE ORG-cA14-RIPE RIPE-NCC-HM-MNT RIPE-NCC-LEGACY-MNT