IPv6 Subnet Calculator
Expand any IPv6 address, compute its network range, first/last address and the number of addresses in the block. Free, runs entirely in your browser.
For traders
Why Indian broker APIs increasingly need IPv6
India has one of the fastest IPv6 adoption rates in the world — a large share of mobile and broadband traffic here is already IPv6. For algorithmic traders, that shift matters in three practical ways:
1. Clean, dedicated source IPs. Most retail connections put you behind CGNAT — your "IP" is shared with hundreds of other users, changes often, and can't be reliably whitelisted. Brokers that let you lock API access to a specific IP need a static, dedicated address. IPv6 makes dedicated addressing abundant and cheap.
2. One IP per account. Running multiple broker accounts from a single shared IP can trip risk/fraud checks. A dedicated IPv6 per account keeps each one cleanly separated.
3. Latency & stability. A datacenter IPv6 close to the exchange (Mumbai) is far more stable than a home connection that re-dials a new CGNAT address through the day.
If your broker supports IP whitelisting, a dedicated IPv6 is the simplest way to get a stable, whitelistable source address for your algos.