Private AS number
AS4200000000–AS4294967294
AS4200000000–AS4294967294 is one of the two blocks of private AS numbers (RFC 6996). It isn't assigned to any network.
At a glance
- Block
- AS4200000000–AS4294967294
- Defined in
- RFC 6996
- On the public internet
- No
About this block
AS64512 to AS65534 and AS4200000000 to AS4294967294 are for use inside a single organization's network, like private IP ranges. Networks strip them before announcing routes to the rest of the internet.
Where you'll see it
- Data center and cloud networks that run BGP internally.
- Connections between a customer and a single provider, where the customer has no public AS number.