IPv6 test - Statistics for Spain

IPv6 in Spain

These graphs show the evolution of default protocol, v6 address types, and average bandwidth in Spain over time.

They are generated using the data collected by the ipv6-test.com connection test page, and are updated on a monthly basis.

Overall IPv6 and v4 protocol support in Spain

This graph shows the evolution of IPv6 support vs IPv4 for all our connection test.

The numbers are percentages, so we can expect almost 100% of hosts supporting IPv4 with a slow growth for IPv6.

Top 25 internet service providers for IPv6 in Spain (Nov 2023)

	ISP	IPv6 tests count
1.	Digi Spain Telecom S.L.U.	468
2.	Telefonica De Espana S.A.U.	317
3.	Cloudflare, Inc.	57
4.	Iguana Comunicacions S.L.	47
5.	Ezequiel Salomon Campos Lopez	33
6.	M247 Europe SRL	30
7.	Associacio Expansio de la Xarxa Oberta	25
8.	Google, LLC	21
9.	Hurricane Electric LLC	10
10.	Cdn77 -mad	7
11.	Agustina Sempere Ruiz trading as Thinco Telecom	7
12.	Avatel Telecom, Sa	6
13.	Xarxes de Telecomunicacions Alternatives SL	6
14.	Akamai Technologies, Inc.	6

IPv6 and v4 protocol support in Spain (unique addresses)

This graph shows the evolution of IPv6 support vs IPv4 for unique users of our connection test.

The numbers are percentages, so we can expect a slow growth towards 50% v4 / 50% v6.

Top 25 internet service providers for IPv6 in Spain (unique addresses, Nov 2023)

	ISP	Unique IPv6 addresses
1.	Digi Spain Telecom S.L.U.	280
2.	Telefonica De Espana S.A.U.	222
3.	Cloudflare, Inc.	42
4.	Google, LLC	12
5.	Iguana Comunicacions S.L.	11
6.	Associacio Expansio de la Xarxa Oberta	11
7.	Hurricane Electric LLC	8
8.	Xarxes de Telecomunicacions Alternatives SL	6
9.	Ezequiel Salomon Campos Lopez	6
10.	Agustina Sempere Ruiz trading as Thinco Telecom	5
11.	Akamai Technologies, Inc.	5
12.	Avatel Telecom, Sa	4
13.	Cdn77 -mad	4
14.	M247 Europe SRL	4

Default browser protocol in Spain

This graph shows the percentage of browsers that default to IPv6 vs. IPv4 when visiting the ipv6-test connection test.

Hopefully, in the not so distant future, the v6 part will grow taller than the v4 one.

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Default browser protocol in Spain (dual-stack users)

This graph shows the percentage of browsers that default to IPv6 vs. IPv4 for users that have both v4 and v6 connectivity.

Usually a system will default to v6 when it's available, but in some cases with tunneled connections, v4 stays the default.

Top 25 internet service providers for IPv6 default in Spain (Nov 2023)

	ISP	Test count	IPv4	IPv4 %	IPv6	IPv6 %
1.	Google, LLC	21	0	0.0%	21	100.0%
2.	Iguana Comunicacions S.L.	47	0	0.0%	47	100.0%
3.	Hurricane Electric LLC	10	0	0.0%	10	100.0%
4.	Xarxes de Telecomunicacions Alternatives SL	6	0	0.0%	6	100.0%
5.	Akamai Technologies, Inc.	6	0	0.0%	6	100.0%
6.	Cloudflare, Inc.	57	1	1.8%	56	98.2%
7.	Telefonica De Espana S.A.U.	317	17	5.4%	300	94.6%
8.	Digi Spain Telecom S.L.U.	468	49	10.5%	419	89.5%
9.	Ezequiel Salomon Campos Lopez	33	4	12.1%	29	87.9%
10.	Avatel Telecom, Sa	6	1	16.7%	5	83.3%
11.	Associacio Expansio de la Xarxa Oberta	25	7	28.0%	18	72.0%
12.	Cdn77 -mad	7	3	42.9%	4	57.1%
13.	Agustina Sempere Ruiz trading as Thinco Telecom	7	4	57.1%	3	42.9%
14.	M247 Europe SRL	30	20	66.7%	10	33.3%

IPv6 address types in Spain

Here you can see the evolution of address types over time, and measure usage of 6to4 and Teredo tunneled connectivity.

It should be noted that because 6rd works with native addresses, it cannot be detected here as tunneled. This is also the case with VPN based tunnels.

Downstream bandwidth in Spain

This graph illustrates the connection speed gap between IPv4 and IPv6, numbers represent v6 speed as percentage of v4 speed.

The lower IPv6 speeds are often caused by tunneling overhead or insufficient v6 connectivity or peering capacity at ISPs.

Top 25 internet service providers for IPv6 speed in Spain (Nov 2023)

	ISP	Test count	IPv6 average
1.	Cloudflare, Inc.	57	258.8 Mbps
2.	Ezequiel Salomon Campos Lopez	33	232.3 Mbps
3.	Digi Spain Telecom S.L.U.	468	185.5 Mbps
4.	Telefonica De Espana S.A.U.	317	161.1 Mbps
5.	Associacio Expansio de la Xarxa Oberta	25	128.5 Mbps
6.	Google, LLC	21	35.7 Mbps
7.	Iguana Comunicacions S.L.	47	0.0 Mbps
8.	Avatel Telecom, Sa	6	0.0 Mbps
9.	Cdn77 -mad	7	0.0 Mbps
10.	Hurricane Electric LLC	10	0.0 Mbps
11.	Xarxes de Telecomunicacions Alternatives SL	6	0.0 Mbps
12.	Agustina Sempere Ruiz trading as Thinco Telecom	7	0.0 Mbps
13.	Akamai Technologies, Inc.	6	0.0 Mbps
14.	M247 Europe SRL	30	0.0 Mbps

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