ICMP RTT measurements from Marseille, France to Los Angeles, USA: latency, jitter, loss, and route efficiency in the 2026-08-15T04:03:13Z round.

🇫🇷 Marseille, France (MRS) → 🇺🇸 Los Angeles, USA (LAX)

Measurement round: 2026-08-15T04:03:13Z.

The 2026-08-15T04:03:13Z measurement round recorded a Marseille-to-Los Angeles ICMP echo RTT average of 144.4 ms, with a minimum of 134.79 ms and a maximum of 168.87 ms. The 7.14 ms standard deviation and 6.04 ms jitter indicate a noticeable spread, but all 50 samples completed with 0% packet loss.

This route ranked 12th among the 19 outbound routes from Marseille, and its standard-deviation-to-average ratio of about 4.9% is above the 3.08% median for that route set. The measured average is 1.52 times the 95.09 ms theoretical fiber-floor minimum, producing 65.9% fiber efficiency over the 9,710.4 km geodesic distance.

The 34.08 ms range from minimum to maximum RTT shows the full envelope at the far end of the distribution, and the 6.04 ms jitter is a substantial share of that range. Because packet loss is zero, the wider timing envelope is not an artifact of missing responses.

Latency Summary

Metric	Value
RTT	144.4 ms
Jitter	6.04 ms
Packet Loss	0%
Standard Fiber Floor	95.09 ms
Fiber Efficiency	65.9%
Latency Tier	Good
Source Region	Europe
Destination Region	North America

Ping Measurement Series

The chart below renders the 50-sample ICMP echo measurement round for this route; an accessible table of every sample is included with the chart.

Ping series: MRS → LAX

50 ICMP echo samples at 100 ms intervals · round 2026-08-15T04:03:13Z · avg 144.4 ± 1.01 ms (SE)

Sample distribution: box = interquartile range (138.5–147.8 ms), median 143.0 ms · whiskers = min–max · diamond = round average · each dot is one measured sample.

How to read this chart

The shaded band spans the measured minimum to maximum RTT of all samples collected up to that point, and the thin line traces the running average. The final position therefore matches the round statistics exactly — the band only widens when a new extreme sample arrives.

The dashed line is the round average, and the shaded band at the bottom is the theoretical fiber-optic floor (95.1 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	150.04
2	100	143.23
3	200	137.76
4	300	144.35
5	400	145.09
6	500	137.90
7	600	144.15
8	700	137.67
9	800	147.42
10	900	154.47
11	1000	147.87
12	1100	147.10
13	1200	142.30
14	1300	137.52
15	1400	135.96
16	1500	136.06
17	1600	150.44
18	1700	153.21
19	1800	142.69
20	1900	140.67
21	2000	140.79
22	2100	145.57
23	2200	138.38
24	2300	146.62
25	2400	142.77
26	2500	138.82
27	2600	137.66
28	2700	143.88
29	2800	137.54
30	2900	136.59
31	3000	134.79
32	3100	142.15
33	3200	158.64
34	3300	151.77
35	3400	141.25
36	3500	139.54
37	3600	149.95
38	3700	150.01
39	3800	149.29
40	3900	142.33
41	4000	152.28
42	4100	145.46
43	4200	143.93
44	4300	139.48
45	4400	137.13
46	4500	137.15
47	4600	164.06
48	4700	168.87
49	4800	147.34
50	4900	140.06

Download This Route's Data

This route's measurement round is published as open data (CC BY 4.0) in CSV, JSON, and YAML. See About This Measurement for citation guidance.

Download this dataset

Per-route ICMP ping series, released under CC BY 4.0. Uncompressed plain text — no decompression step needed.

CSV JSON YAML Full dataset

Theoretical Fiber Latency

The public physical reference uses the GeoNames city centres for Marseille (43.29695, 5.38107) and Los Angeles (34.05223, -118.24368). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	9,710.4 km
Vacuum RTT floor	64.78 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	95.09 ms
Low-latency fiber material floor	94.71 ms
Engineering floor (5% path allowance)	99.86 ms
Research 1.33× mapped-fiber reference	126.47 ms
Estimated unamplified path loss	2039.2 dB
Transparent optical spans / inline amplifiers	128 / 127
Published RTT inflation over fiber floor	1.52×

Attenuation is used to estimate the number of 80 km optical spans; it does not directly slow light. See the full theoretical fiber latency, GeoNames, attenuation, and amplifier methodology.

Stability & Trend

The current measurement round (2026-08-15T04:03:13Z) collected 50 ICMP echo samples on this route. Distribution statistics from that round:

Round Statistic	Value
Minimum RTT	134.79 ms
Average RTT	144.4 ms
Maximum RTT	168.87 ms
Standard deviation	7.14 ms
Stdev / average	4.9%

RTT trend

Estimated route stability across the selected time window.

Average: 144.6 ms
Minimum: 142.9 ms
Maximum: 145.9 ms
Average loss: 0.02%

Route Context

Departure PoP: Marseille (MRS)
Destination PoP: Los Angeles (LAX)
Region overview: Europe → North America
Corridor overview: Europe to North America
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Los Angeles to Marseille latency and RTT — 145.5 ms

Fastest routes departing Marseille (MRS)

Marseille to Paris latency and RTT — 8.9 ms
Marseille to Frankfurt latency and RTT — 17.5 ms
Marseille to Amsterdam latency and RTT — 19.6 ms
Marseille to Berlin latency and RTT — 21.5 ms
Marseille to London latency and RTT — 24.5 ms

Fastest routes arriving at Los Angeles (LAX)

Seattle to Los Angeles latency and RTT — 26.6 ms
Miami to Los Angeles latency and RTT — 56.8 ms
New York to Los Angeles latency and RTT — 58 ms
Ashburn to Los Angeles latency and RTT — 60 ms
Tokyo to Los Angeles latency and RTT — 101.5 ms

Same corridor (Europe → North America)

London to New York latency and RTT — 63.5 ms
Amsterdam to New York latency and RTT — 68.2 ms
Paris to New York latency and RTT — 68.6 ms

About This Measurement

Published RTT reflects best-case backbone path behavior measured with ICMP echo probes between PoPs. End-user latency also depends on local access networks, congestion, routing policy, and traffic engineering. None of these values is an SLA.

The measurement round behind this page is published as open data under CC BY 4.0 in the Hats Network latency dataset. Per-pair files are available at /opendata/latency/latest/pairs/mrs-lax.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Marseille → Los Angeles round 2026-08-15T04:03:13Z, CC BY 4.0".

Data auto-generated on August 15, 2026. Explore the full interactive latency matrix or browse more city-pair routes.

Marseille, France → Los Angeles, USA RTT