Can one IP address correspond to multiple ASNs? If so, what were the circumstances? Is it related to anycast ip address? thanks!
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No, each IP address is associated with a unique origin ASN. You could however have a more specific prefix from a different ASN. For example, 189.50.192.0/20 => ASN1 and 189.50.192.0/22 => ASN2.
All anycast locations would need to be originated from the same ASN.
Andrew
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