Hi, as probably many of you know, it's possible to create a route object to RIPE database for an address space which is allocated outside the RIPE region using the RIPE-NCC-RPSL-MNT maintainer object. For example an address space is from APNIC or ARIN region and AS is from RIPE region. However, what if customer, who has it's own AS number, wants to buy IP transit from RIPE region ISP using addresses from APNIC region and customer claims that owner of those addresses in APNIC region allows him to do so? Common sense suggest that if one wants to announce someone else address space, then they should inform the owner of the address space and the owner of the address space needs to agree. Is there a common practice how this agreement should look like? A simple e-mail? A signed document, which is scanned and sent from address space owner to ISP who wants to announce those addresses? regards, Martin