Bitnodes estimates the relative size of the Bitcoin peer-to-peer network by finding all of its reachable nodes.
This page reports the estimated size of the Bitcoin peer-to-peer network including both reachable and unreachable 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 7 days will include all nodes by IP addresses with timestamps less than 7 days 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.
IPv4 @ 71.30%
IPv6 @ 23.21%
.onion @ 5.48%
Top 10 countries with their respective number of IPv4/IPv6 Bitcoin nodes.
|1||United States||51604 (23.61%)|
|4||Russian Federation||15749 (7.21%)|
|5||United Kingdom||7349 (3.36%)|
Top 10 cities with their respective number of IPv4/IPv6 Bitcoin nodes.
|2||Russia Moscow||3900 (1.78%)|
|3||Germany Frankfurt am Main||2455 (1.12%)|
|4||China Beijing||2409 (1.10%)|
|5||Germany Berlin||2278 (1.04%)|
|6||United Kingdom London||2005 (0.92%)|
|7||Netherlands Amsterdam||1564 (0.72%)|
|8||United States New York||1448 (0.66%)|
|9||Finland Helsinki||1435 (0.66%)|
|10||Germany Munich||1423 (0.65%)|
Top 10 ASNs with their respective number of IPv4/IPv6 Bitcoin nodes.
|1||AS3320 Deutsche Telekom AG||9619 (4.40%)|
|2||AS7922 COMCAST-7922||9160 (4.19%)|
|3||AS4134 Chinanet||7958 (3.64%)|
|4||AS4837 CHINA UNICOM China169 Backbone||4860 (2.22%)|
|5||AS7018 ATT-INTERNET4||4858 (2.22%)|
|7||AS9009 M247 Ltd||4218 (1.93%)|
|8||AS16509 AMAZON-02||3898 (1.78%)|
|9||AS3209 Vodafone GmbH||3854 (1.76%)|
|10||AS8881 1&1 Versatel Deutschland GmbH||3730 (1.71%)|
Top 5 services (based on services field in addr message) with their respective number of Bitcoin nodes. Each node may advertise one or more of these services.
Top 10 port numbers with their respective number of Bitcoin nodes.