Bitnodes estimates the relative size of the Bitcoin peer-to-peer network by finding all of its reachable nodes.


Global Bitcoin nodes by city

6436 cities with their respective number of global IPv4/IPv6 Bitcoin nodes as of Sat May 18 20:00:00 2024 EDT.

Window size: 1-day

NODES61364
COUNTRIES137
CITIES6436
ASNS2238
SERVICES5
PORT NUMBERS285

First / Prev Page 4 of 258 (6436 cities) Next / Last

RANKCITYNODES
67Germany Gunzenhausen85 (0.18%)
67Germany Hamburg85 (0.18%)
68China Hangzhou82 (0.17%)
69United States Brooklyn81 (0.17%)
70Argentina Buenos Aires80 (0.17%)
70Italy Rome80 (0.17%)
71Bulgaria Sofia79 (0.16%)
71United States San Francisco79 (0.16%)
72Australia Perth78 (0.16%)
73India Mumbai74 (0.15%)
73South Korea Incheon74 (0.15%)
74India Bengaluru73 (0.15%)
75United Kingdom Slough72 (0.15%)
76Brazil Rio de Janeiro71 (0.15%)
76United States St Louis71 (0.15%)
77Germany Stuttgart68 (0.14%)
77Taiwan Taipei68 (0.14%)
77United States San Diego68 (0.14%)
78Germany Cologne65 (0.14%)
79Luxembourg Luxembourg63 (0.13%)
79Norway Oslo63 (0.13%)
80Vietnam Ho Chi Minh City62 (0.13%)
81United States Salt Lake City60 (0.13%)
82South Africa Cape Town59 (0.12%)
82Spain Barcelona59 (0.12%)

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This page reports the estimated size of the Bitcoin peer-to-peer network including both reachable and unreachable nodes, i.e. global nodes. Unlike the low churn rate estimation method for reachable nodes (see the latest snapshot here), the method for this report can only provide a rough estimation and does not filter out potentially spurious nodes that may be gossiped by non-standard/spam/malicious peers.

Bitnodes crawler captures these nodes from the addr messages returned by all the reachable nodes. Each snapshot or data point in this report represents a rolling window. A snapshot with window size of 1 day will include all nodes by IP addresses with timestamps less than 1 day old. The timestamp for a node here refers to the time when its peer last connects to it. If you turn on your Bitcoin node for only a few minutes anytime during the last 24 hours, it will be included in the latest snapshot with a window size of 1 day.

Multiple nodes from the same IP address, but different port numbers are counted as one node in this report. A larger window size may increase the likelihood of the same node being counted more than once due to e.g. IP lease renewal.

A Bitcoin node may be unreachable for several reasons. It may be configured by the operator to only attempt to make outgoing connections or it may be located behind corporate/ISP firewalls or NAT. A node could also become temporarily unreachable if it has hit its maximum allowed connections or if it is in the process of syncing up to the latest blocks. As it is impossible to connect to an unreachable node directly, we cannot reliably confirm the true existence of an unreachable node, hence the rough estimation.


Join the Network

Be part of the Bitcoin network by running a Bitcoin full node, e.g. Bitcoin Core.

Use this tool to check if your Bitcoin client is currently accepting incoming connections from other nodes. Port must be between 1024 and 65535.