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Peer Asn already exists with different name

Dutakom Wibawa Putra 0 Reputation points
2025-07-28T05:13:03.78+00:00

i want to peer with microsoft via public exchange and need peerasn to be deployed first. when I deploy peerasn to associate my ASN with my subscription, it is failed with message Peer Asn already exists with different name

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

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  1. Ganesh Patapati 11,915 Reputation points Microsoft External Staff Moderator
    2025-07-28T10:42:30.6+00:00

    Hello Dutakom Wibawa Putra

    How to View the status of a PeerASN

    Refer: https://learn.microsoft.com/en-us/previous-versions/azure/internet-peering/howto-subscription-association-powershell?wt.mc_id=knowledgesearch_inproduct_azure-cxp-community-insider#view-status-of-a-peerasn

    Here is a brief overview of how to set up the Peering Service partner requirements.
    Refer: https://learn.microsoft.com/en-us/azure/internet-peering/peering-service-partner-overview#peering-service-partner-requirements

    Modifying a PeerAsn isn't currently supported. If you need to modify a PeerASN, contact Microsoft peering.

    Deleting a PeerASN isn't currently supported. If you need to delete PeerASN, contact Microsoft peering.

    I hope this has been helpful!

    If the above is unclear or you are unsure about something, please add a comment below.

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