IPv6 test - Statistics for United States

IPv6 in United States

These graphs show the evolution of default protocol, v6 address types, and average bandwidth in United States 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 United States

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 United States (Jan 2020)

	ISP	IPv6 tests count
1.	Comcast Cable Communications, LLC	5,552
2.	Spectrum	4,659
3.	Cellco Partnership DBA Verizon Wireless	3,222
4.	AT&T Services, Inc.	2,384
5.	Hurricane Electric LLC	1,564
6.	Google LLC	1,069
7.	Cox Communications Inc.	863
8.	Cloudflarewarp	847
9.	CenturyLink Communications, LLC	524
10.	T-Mobile USA, Inc.	394
11.	Sprint	338
12.	AT&T Mobility LLC	337
13.	Choopa	336
14.	Google Fiber Inc.	245
15.	Mediacom Communications Corp	240
16.	M247 Ltd	145
17.	Condointernet.net	93
18.	Linode, LLC	93
19.	RamNode LLC	91
20.	China Mobile communications corporation	79
21.	Cincinnati Bell Telephone Company LLC	78
22.	American Registry Internet Numbers	68
23.	Frontier Communications Solutions	59
24.	Cogent Communications	58
25.	Quintex Alliance Consulting	55

IPv6 and v4 protocol support in United States (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 United States (unique addresses, Jan 2020)

	ISP	Unique IPv6 addresses
1.	Comcast Cable Communications, LLC	3,341
2.	Spectrum	2,516
3.	Cellco Partnership DBA Verizon Wireless	2,154
4.	AT&T Services, Inc.	1,360
5.	Hurricane Electric LLC	748
6.	Cox Communications Inc.	542
7.	Cloudflarewarp	490
8.	T-Mobile USA, Inc.	304
9.	CenturyLink Communications, LLC	272
10.	AT&T Mobility LLC	233
11.	Sprint	195
12.	Google LLC	187
13.	Mediacom Communications Corp	160
14.	Choopa	114
15.	Google Fiber Inc.	109
16.	Condointernet.net	52
17.	China Mobile communications corporation	49
18.	Cincinnati Bell Telephone Company LLC	42
19.	Frontier Communications Solutions	41
20.	Chinanet	38
21.	Cogent Communications	37
22.	M247 Ltd	33
23.	China Unicom Network	30
24.	Google	29
25.	Midcontinent Communications	28

Default browser protocol in United States

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.

Default browser protocol in United States (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 United States (Jan 2020)

	ISP	Test count	IPv4 %	IPv6	IPv6 %
1.	Bluebird Network	9	0.0%	9	100.0%
2.	University of Pennsylvania	6	0.0%	6	100.0%
3.	anyNode	12	0.0%	12	100.0%
4.	Upc Sk	5	0.0%	5	100.0%
5.	Kabeldeutschland	9	0.0%	9	100.0%
6.	Wells Fargo & Company	9	0.0%	9	100.0%
7.	Unite Private Networks LLC	35	0.0%	35	100.0%
8.	Holyoke Gas & Electric Department	19	0.0%	19	100.0%
9.	Stanford University	6	0.0%	6	100.0%
10.	Simply Cyber Inc	7	0.0%	7	100.0%
11.	Iowa Communications Network	20	0.0%	20	100.0%
12.	Google	39	0.0%	39	100.0%
13.	University of California, Los Angeles	5	0.0%	5	100.0%
14.	SnapServ Mathis	8	0.0%	8	100.0%
15.	Arachnitec, INC.	7	0.0%	7	100.0%
16.	Microsoft Corp	6	0.0%	6	100.0%
17.	Common Networks	5	0.0%	5	100.0%
18.	Gf-lax	36	0.0%	36	100.0%
19.	State University of New York at Buffalo	14	0.0%	14	100.0%
20.	Isomedia, Inc.	13	0.0%	13	100.0%
21.	Amanah Tech Inc.	6	0.0%	6	100.0%
22.	Virginia Polytechnic Institute and State Univ.	9	0.0%	9	100.0%
23.	AT&T Services	7	0.0%	7	100.0%
24.	Eonix Corporation	10	0.0%	10	100.0%
25.	Zichao Heng	5	0.0%	5	100.0%

IPv6 address types in United States

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 United States

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 United States (Jan 2020)

	ISP	Test count	IPv6 average
1.	Google LLC	1,069	365.3 Mbps
2.	ICS Advanced Technologies	13	260.6 Mbps
3.	Verizon Communications	41	255.2 Mbps
4.	Bluebird Network	9	164.7 Mbps
5.	High Performance Computing	6	153.7 Mbps
6.	SpringNet	26	141.5 Mbps
7.	University of Pennsylvania	6	108.1 Mbps
8.	Comcast Cable Communications, LLC	5,552	105.9 Mbps
9.	Unite Private Networks LLC	35	105.9 Mbps
10.	American Registry Internet Numbers	68	92.0 Mbps
11.	PenTeleData Inc.	23	87.2 Mbps
12.	Spectrum	4,659	86.7 Mbps
13.	Hurricane Electric	14	83.8 Mbps
14.	Quintex Alliance Consulting	55	77.7 Mbps
15.	AT&T Services, Inc.	2,384	68.9 Mbps
16.	Webpass Inc.	50	67.9 Mbps
17.	Mediacom Communications Corp	240	66.7 Mbps
18.	Cox Communications Inc.	863	65.6 Mbps
19.	Linode, LLC	93	65.6 Mbps
20.	DigitalOcean, LLC	39	64.8 Mbps
21.	Google Fiber Inc.	245	61.7 Mbps
22.	Amazon.com	5	58.0 Mbps
23.	M247 Ltd	145	54.2 Mbps
24.	Cincinnati Bell Telephone Company LLC	78	52.8 Mbps
25.	Hurricane Electric LLC	1,564	49.3 Mbps