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Open ports statistics for 2020

 ·  β˜• 2 min read

The last quarter of 2020 is behind us, which means it’s time for another look at some of the interesting ports accessible on public IPs. This time however, we will take a look at how the internet changed during the whole of 2020, not just at the past 3 months.

I would especially like to bring to your attention the steady decrease in ICS systems connected to the internet during 2020. Although Shodan still sees almost 100k of IP addresses running services communicating using industrial protocols, it is over 30k less then it saw at the beginning of the year.

As always, the data, on which the following charts are based, have been gathered using Shodan. Therefore bear in mind that although the charts should give us a good enough view of more significant changes, they may not be completely accurate (see the first post with quarterly statistics.

Should you be interested in the port situation in the Czech republic, you may find corresponding charts here.

Bellow, you may find charts for the following protocols and ports:

Web

E-mail

Industrial Control Systems (ICS)


SSH (port 22)

SSH

Telnet (port 23)

Telnet

DNS (port 53)

DNS

NTP (port 123)

NTP

SNMP (port 161)

SNMP

SMB (port 445)

SMB

RDP (port 3389)

RDP

HTTP (port 80)

HTTP

HTTPS (port 443)

HTTPS

SMTP (port 25)

SMTP

SMTPS (port 465)

SMTPS

IMAP (port 143)

IMAP

IMAPS (port 993)

IMAPS

POP3 (port 110)

POP3

POP3S (port 995)

POP3S

All ICS protocols

All ICS protocols

Modbus (port 502)

Modbus

EIBnet/IP (port 3671)

EIBnet

BACnet/IP (port 47808)

BACnet