Per-IP pricing is easy once you multiply it out. On InterLIR Global's marketplace the price table showed /22 blocks of 1K IPs at roughly €0.39 to €0.98 per IP per month and /24 blocks at €0.37 to €0.72 when I looked. A /22 at €0.50 per IP is about 512 euro a month, so check the real listing price. Compare IPv4 blocks by geo and reputation too, not only by price. And ask whether a longer term lowers the rate. Rates also depend on location: a German /22 can cost more than the same size elsewhere. Pick the geo that matches your users, then compare. Remember VAT if it applies in your country. Finally, ask whether quoted prices include the LOA fee, because some listings show per-IP prices and add handling charges later.