how to find the subnets in subcription

Question

how to find the subnets in subcription

Alan Phan 0

Doesn't anyone know how to search a subnet is the Azure's subscription

KapilAnanth-MSFT 49,331 Reputation points Microsoft Employee

2024-02-01T07:20:44.81+00:00
@Alan Phan

Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

I understand that you would like to search for a subnet in the list the of VNETs. Please let me know if this is incorrect.

Currently, we cannot directly input the Subnet name and search for it via Portal. We have to use the VNET Name only

Instead,

#1

You can follow the script by Dillon Silzer to list all the subnets and find the associated VNET

And use the VNET name to search for it.

#2

Or you can use Azure graph explorer to do this.

See List all Azure virtual network subnets

The same link contains Powershell and CLI alternatives as well.

And you can filter for the subnet name.

Kindly let us know if this helps or you need further assistance on this issue.

Thanks, Kapil

Please don’t forget to close the thread by clicking "Accept the answer" wherever the information provided helps you, as this can be beneficial to other community members.
KapilAnanth-MSFT 49,331 Reputation points Microsoft Employee

2024-02-02T05:14:02.97+00:00
@Alan Phan

Just checking in to see if the below answer helped. If this answers your query, please don’t forget to click "Accept the answer" and Up-Vote for the same, which might be beneficial to other community members reading this thread.

In addition to Dillon Silzer 's script, consider using the Azure Graph explorer as well

Resources | where type == 'microsoft.network/virtualnetworks' | extend subnets = properties.subnets | mv-expand subnets | project name, subnets.name, subnets.properties.addressPrefix, location, resourceGroup, subscriptionId

And, if you have any further query do let us know.

Thanks,

Kapil
Tony Weiss 0 Reputation points

2025-04-28T17:56:31.26+00:00

Do you have a version of this query that provides the Subscription Name and not the ID?

KapilAnanth-MSFT 49,331 Microsoft Employee

Tony Weiss ,

From Resource Graph explorer

resources
| join kind=inner (
    resourcecontainers
    | where type == 'microsoft.resources/subscriptions'
    | project subscriptionId, subscriptionName = name)
    on subscriptionId
| where type == 'microsoft.network/virtualnetworks'
| extend subnets = properties.subnets
| mv-expand subnets
| project name, subnets.name, subnets.properties.addressPrefix, location, resourceGroup, subscriptionId, subscriptionName

1 answer

Your answer

KapilAnanth-MSFT 49,331 Reputation points Microsoft Employee

2024-02-01T07:20:44.81+00:00

@Alan Phan

Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

I understand that you would like to search for a subnet in the list the of VNETs. Please let me know if this is incorrect.

Currently, we cannot directly input the Subnet name and search for it via Portal. We have to use the VNET Name only

Instead,

#1

You can follow the script by Dillon Silzer to list all the subnets and find the associated VNET

And use the VNET name to search for it.

#2

Or you can use Azure graph explorer to do this.

See List all Azure virtual network subnets

The same link contains Powershell and CLI alternatives as well.

And you can filter for the subnet name.

Kindly let us know if this helps or you need further assistance on this issue.

Thanks, Kapil

Please don’t forget to close the thread by clicking "Accept the answer" wherever the information provided helps you, as this can be beneficial to other community members.
KapilAnanth-MSFT 49,331 Reputation points Microsoft Employee

2024-02-02T05:14:02.97+00:00

@Alan Phan

Just checking in to see if the below answer helped. If this answers your query, please don’t forget to click "Accept the answer" and Up-Vote for the same, which might be beneficial to other community members reading this thread.

In addition to Dillon Silzer 's script, consider using the Azure Graph explorer as well

Resources | where type == 'microsoft.network/virtualnetworks' | extend subnets = properties.subnets | mv-expand subnets | project name, subnets.name, subnets.properties.addressPrefix, location, resourceGroup, subscriptionId

And, if you have any further query do let us know.

Thanks,

Kapil
Tony Weiss 0 Reputation points

2025-04-28T17:56:31.26+00:00

Do you have a version of this query that provides the Subscription Name and not the ID?
KapilAnanth-MSFT 49,331 Reputation points Microsoft Employee

2025-04-29T11:03:38.7166667+00:00

Tony Weiss ,

From Resource Graph explorer

resources | join kind=inner ( resourcecontainers | where type == 'microsoft.resources/subscriptions' | project subscriptionId, subscriptionName = name) on subscriptionId | where type == 'microsoft.network/virtualnetworks' | extend subnets = properties.subnets | mv-expand subnets | project name, subnets.name, subnets.properties.addressPrefix, location, resourceGroup, subscriptionId, subscriptionName

Answer 1

Hi Alan,

I recommend reading the following:

List all VNet and Subnets across multiple subscriptions

http://dev.to/roberthstrand/list-all-vnet-and-subnets-across-multiple-subscriptions-4028

Taken from the blog post by Roberth Strand:

Get-AzSubscription | Foreach-Object {
    $sub = Set-AzContext -SubscriptionId $_.SubscriptionId
    $vnets = Get-AzVirtualNetwork

    foreach ($vnet in $vnets) {
        [PSCustomObject]@{
            Subscription = $sub.Subscription.Name
            Name = $vnet.Name
            Vnet = $vnet.AddressSpace.AddressPrefixes -join ', '
            Subnets = $vnet.Subnets.AddressPrefix -join ', '
        }
    }
} | Export-Csv -Delimiter ";" -Path "AzureVnet.csv"

The PowerShell script above will get all the subscriptions you have access to and export the VNets from all of the subscriptions.

If this is helpful please accept answer.

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how to find the subnets in subcription

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