Cisco's Serial Number Check tool shows the warranty and service-coverage information available for a Cisco product serial number.
- Open Cisco's Serial Number Check tool.
- Enter the serial number exactly as it appears on the chassis or module label.
- Select Check.
- Review the returned product identity, warranty status, coverage dates, and support-contract information.
Some results require a Cisco.com sign-in or an account with access to the relevant contract. If a serial number is rejected, recheck characters that are easily confused and confirm that the label belongs to the complete product rather than a replaceable subassembly.
The tool reports Cisco's records for that serial number. For discrepancies, entitlement transfers, or contract questions, contact Cisco support or the organization that manages the contract.