// ASN
AS203121
YZA-AS, RU
Detailed information about the Autonomous System. Need another one? Look up a different ASN.
- ASN
- AS203121
- Organization
- Core Communication Services Limited
- Description
- YZA-AS, RU
- Country
- GB
- Address
- Dummy address for ORG-CCSL12-RIPE
- Registry (RIR)
- RIPE
- Created
- 2016-12-13
- Updated
- 2025-10-20
- IPv4 Prefixes
- 1
- IPv6 Prefixes
- 0
IPv4 Prefixes
1 total45.137.86.0/24
What is AS203121?
AS203121 is an Autonomous System Number (ASN) assigned to Core Communication Services Limited. An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.
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