// Cloud region

japanwest

Microsoft · Japan West

Region details

Partition: Public
Airport code: ITM
Country: JP
Nearest city: Osaka, Japan
Services: ActionGroupAzureApiManagementAzureAppServiceAzureAppServiceManagementAzureArcInfrastructureAzureAttestationAzureBackupAzureBotServiceAzureCognitiveSearchAzureConnectorsAzureContainerRegistryAzureCosmosDBAzureDataExplorerManagementAzureDigitalTwinsAzureEventGridAzureEventHubAzureIoTHubAzureKeyVaultAzureMachineLearningAzureMonitorAzureOpenDatasetsAzurePortalAzureResourceManagerAzureSQLAzureSecurityCenterAzureServiceBusAzureSignalRAzureStorageBatchNodeManagementDataFactoryDynamics365ForMarketingEmailGatewayManagerHDInsightLogicAppsMicrosoftContainerRegistryPowerBIPowerPlatformInfraPowerPlatformPlexPowerQueryOnlineSCCserviceServiceFabricStorageSyncServiceWindowsVirtualDesktop

Published prefixes

667 prefixes in Fastah's public IP data (514 IPv4, 153 IPv6). The first 100, in address order:

4.190.128.0/184.190.130.128/254.190.131.64/264.190.131.128/254.190.132.0/284.190.132.42/314.190.132.160/284.190.132.176/294.190.132.184/294.190.136.180/304.190.136.184/294.190.136.192/284.190.137.192/264.190.142.16/284.190.142.32/274.190.142.192/274.190.142.232/294.190.142.240/28

Show 82 more

4.190.143.128/264.190.143.192/284.190.143.216/294.190.144.0/294.190.144.8/304.190.144.16/294.190.144.24/294.190.144.32/284.190.144.64/264.190.144.128/264.190.144.224/274.190.146.0/254.190.146.128/274.190.146.176/284.190.147.0/294.190.147.16/284.190.147.48/294.190.147.140/304.190.192.0/194.190.224.0/204.190.224.128/254.190.225.0/254.190.229.192/264.190.231.0/244.190.232.0/254.190.233.224/274.190.234.44/304.190.234.64/264.190.240.0/224.190.244.0/244.190.245.0/264.190.245.64/284.190.245.96/274.190.245.128/254.190.246.0/234.190.248.0/214.190.252.24/309.129.43.0/259.129.58.0/289.129.118.64/279.129.231.0/259.129.246.192/279.129.248.112/2813.73.232.0/2113.105.106.160/2713.105.106.192/2813.105.106.224/2720.18.128.0/2020.18.160.0/2020.18.176.0/2120.18.176.64/2720.18.177.64/2720.18.178.0/2620.18.178.64/2920.18.178.72/3020.18.178.76/3020.18.178.80/2920.18.178.96/2820.18.178.128/2620.18.179.0/2620.18.179.64/2620.18.179.160/2720.18.179.192/2920.18.179.200/2920.18.179.208/2820.18.181.0/2520.18.181.160/2820.18.181.180/3120.18.183.0/2920.20.47.0/2520.27.64.0/1820.27.192.0/1820.27.248.0/2220.27.252.0/2320.33.199.0/2420.39.176.0/2120.39.179.192/2620.47.10.0/2420.47.66.0/2420.47.99.0/2420.60.12.0/2420.60.105.0/24

Data as of 2026-11-05, from Fastah's daily geofeed crawl.

Source & provenance. From Microsoft's published IP range files, placed at the region's nearest city. Fastah lists them and does not edit them.