The following limits apply to ExpressRoute resources per subscription.
Resource
Default Limit
ExpressRoute circuits per subscription
10
ExpressRoute circuits per region per subscription for ARM
10
Maximum number of routes for Azure private peering with ExpressRoute standard
4,000
Maximum number of routes for Azure private peering with ExpressRoute premium add-on
10,000
Maximum number of routes for Azure public peering with ExpressRoute standard
200
Maximum number of routes for Azure public peering with ExpressRoute premium add-on
200
Maximum number of routes for Azure Microsoft peering with ExpressRoute standard
200
Maximum number of routes for Azure Microsoft peering with ExpressRoute premium add-on
200
Number of virtual network links allowed per ExpressRoute circuit
see table below
Number of Virtual Networks per ExpressRoute circuit
Circuit Size Number of VNet links for standard Number of VNet Links with Premium add-on
50 Mbps
10
20
100 Mbps
10
25
200 Mbps
10
25
500 Mbps
10
40
1 Gbps
10
50
2 Gbps
10
60
5 Gbps
10
75
10 Gbps
10
100