IOS XE for ASR920

[EA-6901000101]

Hi I want to know how identified the IOS XE for the different model of ASR920 router: I saw

Release 3.18.4SP,

Release Fuji-16.9.1a

Release Everest-16.6.4 MD

• ASR 920 Router
• ASR 920-4SZ-A Router
• ASR 920-4SZ-D Router
• ASR 920-10SZ-PD Router
• ASR 920-12CZ-A Router
• ASR 920-12CZ-D Router
• ASR 920-12SZ-IM Router
• ASR 920-24SZ-IM Router

• ASR 920-24SZ-M Router
• ASR 920-24TZ-M Router
• ASR 920U-12SZ-IM Router
• ASR-920-12SZ-A Router
• ASR-920-12SZ-D Router
• ASR-920-12SZ-IM-CC Router
• ASR-920-20SZ-M Router