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NGlobal Network Latency Averages
  The below listed measurements of latency on AT&T's Global IP Network represent the average interval of time it took during the applicable calendar month for test packets of data to travel between selected pairs of the AT&T Network Nodes within the regions specified below. Over 2800 measurements are taken for each city pair over an entire month to derive the reported monthly average. AT&T believes this type of measurement more accurately reflects customer's real life experience, rather than measuring ICMP traffic such as pings.

For more information about how these statistics are compiled and displayed, check out our methodology.

The table below provides examples of round-trip latency performance data on selected city-pairs within AT&T.s Global IP Network:
 

Regional Averages
(Averages of groups of city-pairs within the listed region)

Last 12
Months Averages
06/14 05/14 04/14 03/14 02/14 01/14 12/13 11/13 10/13 09/13 08/13 07/13
US
33.73
33.61
33.58
33.66
33.65
33.62
33.68
33.75
33.74
33.84
33.92
34.15
33.51
Europe
16.31
16.24
16.34
16.23
16.18
16.52
16.75
17.37
16.67
16.99
15.60
15.44
15.43
Asia Pacific
63.43
62.79
62.87
63.01
65.14
64.04
63.71
63.28
62.76
62.58
63.26
63.23
64.47
Cala
104.79
99.84
98.97
103.37
106.07
102.41
101.12
102.08
104.51
113.61
106.44
110.22
108.89
Inter Region
New York to London
72.94
72.47
72.44
72.49
72.65
72.44
72.85
73.44
73.70
73.50
73.71
73.00
72.60
New York to Rio De Janeiro
114.51
109.37
109.18
108.85
109.48
109.83
109.66
109.53
110.90
164.20
113.64
109.88
109.63
San Francisco to Tokyo
95.22
93.40
93.51
95.42
94.70
95.12
95.52
95.26
95.28
95.82
95.27
98.04
95.29
Singapore to Los Angeles
173.09
170.68
170.77
172.22
171.78
172.00
172.82
172.94
173.07
173.10
172.90
174.59
180.15
Tokyo to London
239.97
238.33
239.43
241.29
239.45
239.43
240.27
239.68
239.93
240.09
239.79
241.18
240.74
US (Intra-region)
Dallas to Chicago
26.34
26.78
26.59
26.53
26.59
26.59
26.55
26.54
26.37
26.51
26.35
26.82
23.87
Los Angeles to New York
67.18
66.97
66.82
66.83
67.07
67.80
67.34
67.05
67.52
67.40
67.09
66.87
67.43
Orlando to New York
34.69
35.01
34.73
34.71
34.65
34.43
34.33
34.44
34.52
34.91
34.92
35.01
34.63
Philadelphia to Denver
39.19
39.09
39.20
39.16
39.10
39.03
39.14
39.15
39.22
39.20
39.20
39.52
39.26
Europe (Intra-region)
Frankfurt to Milan
12.13
12.81
12.49
12.59
12.51
12.29
12.25
12.19
12.24
12.23
11.97
10.91
11.05
Frankfurt to Stockholm
27.60
27.84
27.56
27.69
27.55
27.52
27.53
27.54
27.56
27.61
27.72
27.54
27.55
London to Madrid
25.85
24.41
24.40
23.99
24.07
24.01
23.99
23.90
25.07
29.00
28.89
28.99
29.51
London to Paris
9.97
10.07
10.08
10.12
10.09
10.05
10.10
10.10
10.07
10.10
10.11
9.41
9.31
Asia Pacific (Intra-region)
Hong Kong to Sydney
116.90
122.20
116.21
116.35
116.49
117.20
116.41
116.30
116.16
116.12
116.06
116.17
117.09
Singapore to Tokyo
69.22
69.16
68.82
68.78
68.74
68.52
68.48
68.63
68.68
68.46
68.49
68.56
75.30
Taipei to Hong Kong
21.82
20.52
20.92
20.37
20.28
20.34
38.30
20.06
20.03
20.55
19.96
20.24
20.25
Tokyo to Hong Kong
48.38
51.76
51.86
51.69
51.64
51.47
45.55
45.18
45.11
45.18
45.46
45.40
50.26
Latin America (Intra-region)
Buenos Aires to Rio De Janeiro
33.62
33.76
33.81
33.65
33.24
34.33
33.87
33.87
33.42
33.36
33.56
33.04
33.50
Mexico City to Bogotá
Rio De Janeiro to Santiago
53.86
56.04
54.52
57.43
52.88
52.88
53.19
52.32
52.72
55.81
53.01
53.11
52.36
Sao Paulo to Santiago
52.54
54.61
52.27
56.02
51.45
50.32
51.13
50.92
51.18
55.10
53.18
52.63
51.62

 

     

For data regarding additional routes you may be interested in, please contact the US based AT&T representative at (866) 590-6862, Monday . Friday, 8:30AM . 5:30PM ET Existing GMIS and VPN customers may obtain latency data on additional global city pairs via the Global Performance Reporting (GPR) website, available through the Business Direct Portal

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