We don't "own" our IP address—for instance, it's not like a homeowner's address, which is linked to a piece of land and a building on it.
Your IP address can change and it's never really tied to your name or address, at least not in a way the public can see it.
This number is one of the most important elements of every invoice.
Its role is to identify transactions, so it needs to be unique.
Moreover, if you have a tax audit, proper invoicing is a must: so check out our advice to ensure that you stay above board.
An invoice number is a unique number that is assigned to each invoice.
IANA and RIRs make sure our IP addresses will work when we need them to work, whatever that IP address at any one time is and wherever we happen to be.
When it comes to assigning invoice numbers, life can seem like it is not all that straightforward.
There a number of Internet organizations involved with helping to keep the network operating smoothly and efficiently.
Each one takes care of one aspect of the Internet and carefully follows policies and procedures (that are set up by other Internet organizations).