C1

C1 Communications
Data as of 2026-08-09
GLEIF verified
LEI
529900B24Q2UUSI7Y319
Registered name
C1
Jurisdiction
LU
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks4 · 276 IPv4 addresses
IPv6 1 prefix (largest 2a05:2c80::/44)
All fragments 14 blocks across 6 clusters
Cluster ID218828821
RegistryARIN
Owner jurisdictionLU
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 529900B24Q2UUSI7Y319
Shared handles clustered on 16 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (4)

⬇ export CSV
CIDR Org name Registry Status Confidence
64.5.192.0/24 C1 Communications ARIN ASSIGNMENT ● high
62.103.57.112/28 C1 RIPE ASSIGNED PA ● low
185.41.34.12/30 C1 RIPE ASSIGNED PA ● low
2a05:2c80::/44 C1 RIPE AGGREGATED-BY-LIR ● low

IPv6 ranges (1)

CIDR
2a05:2c80::/44

Network trust

what's this?
RPKI hygiene: C how networks compare →
50.0% of checked blocks have valid RPKI ROA coverage (2 of 4)
No discrepancies found among checked blocks.

NIC Handles

ABAI1-ARIN ABUSE1127-ARIN AF64616-MNT ANR1-ARIN C00108732 DHANJ1-ARIN DUMY-RIPE DUMY-RIPE IRRAD-ARIN LB-TERRANET LB-WITANI LINX +4 more