BTC: Addresses Announced to Our Crawler by Network

Bitcoin Addresses Announced to Our Crawler by Network: daily data through 9 Nov 2026.

How many distinct addresses of each network type our crawler heard announced by the nodes it contacted, in each snapshot.

Why use it. Nodes also run over IPv6, Tor, I2P and CJDNS. Announcements are a measure of how many nodes offer those paths; our crawler itself reaches IPv4 only. How to read it. Read the mix, not the level: a network's band grows when more of its addresses circulate between nodes. These are addresses heard, not nodes reached, and one node can announce several.

Calculation. The number of distinct addresses in the answers to the crawler's address requests during a snapshot, by the network type each address states, using the addrv2 message where a node sends it. Addresses are counted in memory and not stored. Reachable nodes are a sample, not every node. Nodes that do not accept incoming connections (most nodes), and nodes reachable only over Tor, I2P, CJDNS or IPv6, are not counted, because our host connects over IPv4 only. Our crawler has also not found every IPv4 node that accepts connections: it finds nodes from the addresses our own node knows and the addresses other nodes announce, and our Internet connection lets it try only a few new addresses a second, so the sample grows over its first days. Each snapshot re-contacts every node in the sample (up to three tries within minutes) and is published only if it reached at least 90% of them within 25 minutes and the sample holds at least 1,000 nodes. Software names, versions and flags are self-reported and cannot be verified. Collection began on 22 October 2026; no earlier values are reconstructed.