Does the price per IP drop as I order more

Yes, in bands rather than continuously, and with one property that is easy to miss and worth a lot of money: the band rate applies to the entire order, not only to the addresses above the threshold. Crossing a boundary therefore makes every address you already hold cheaper, rather than giving you a discount on the extra ones alone.

Why that detail matters

Two ways of applying volume pricing exist. The common one is tiered, where each slice of the order is charged at its own rate and only the addresses past a boundary get the better price. The other is what happens here: your total decides one rate, and that rate applies to everything.

The consequence is that a boundary is a genuine cliff in your favour. An order sitting just below one is paying the higher rate on every address, and a modest increase can reduce the cost of the whole allocation. It is worth checking where the nearest boundary sits before you finalise a count, because the arithmetic is not intuitive.

How the bands are shaped

The American Class C pool has three bands, from a small entry range up to the largest orders. The European pool has its own three, with different boundaries and its own rates, because it is a separate and smaller pool rather than a slice of the same one. The wider address tiers have their own band structures too, compressed into smaller ranges because the supply is smaller.

Current boundaries and rates are on the product pages. They are not repeated here on purpose: a number written into an article ages badly and there is no reason to maintain it in two places.

Splitting an order is usually a mistake

If you know you will need sixty addresses eventually, ordering thirty now and thirty later can cost more than ordering sixty once, because each smaller order is evaluated on its own count. It is also more administration: two orders to reconcile, two moments to verify the new addresses are properly scattered.

The counterweight is real, though, and worth stating: do not buy an estate you have not built. Headroom is sensible, speculation is not. The right amount of headroom is usually the next twelve months of actual plans rather than an ambition.

What volume does not change

A larger order does not change the character of what you receive. The addresses are drawn from the same pool of non-consecutive blocks whether you take a handful or several hundred, and a large order is exactly where a thin pool would reveal itself. Check the scatter on a big allocation rather than assuming it.

Verification is covered in IP Diversity. Term discounts stack on top of volume and are described in Billing and Refunds, with current rates on the USA page and the European page.