Explore Ashburn, USA to Melbourne, Australia ICMP RTT, jitter, packet loss and fiber latency limits on the AS203314 network.

🇺🇸 Ashburn, USA (IAD) → 🇦🇺 Melbourne, Australia (MEL)

Measurement round: 2026-08-16T04:07:28Z.

Ashburn to Melbourne averaged 203.9 ms across 50 replies. The observed range was 200.88 to 217.16 ms; these figures describe one probe round, not a long-term service target.

Standard deviation was 3.32 ms, or 1.6% of the average. This describes variation within the sample without identifying its cause.

Latency Summary

Metric	Value
RTT	203.9 ms
Jitter	2.28 ms
Packet Loss	0%
Standard Fiber Floor	160.09 ms
Fiber Efficiency	78.5%
Latency Tier	Fair
Source Region	North America
Destination Region	Asia Pacific

Ping Measurement Series

50 ICMP echo probes were recorded in this round. Individual replies and their distribution are shown below.

Ping series: IAD → MEL

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 203.9 ± 0.47 ms (SE)

Sample distribution: box = interquartile range (202.2–204.0 ms), median 202.9 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 (160.1 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	204.19
2	100	203.06
3	200	205.95
4	300	203.42
5	400	202.81
6	500	201.78
7	600	201.83
8	700	200.88
9	800	203.90
10	900	203.93
11	1000	203.35
12	1100	204.45
13	1200	202.64
14	1300	204.40
15	1400	205.91
16	1500	202.58
17	1600	203.35
18	1700	217.16
19	1800	215.46
20	1900	208.55
21	2000	203.72
22	2100	202.30
23	2200	202.33
24	2300	201.60
25	2400	211.72
26	2500	205.55
27	2600	202.53
28	2700	202.19
29	2800	203.13
30	2900	202.20
31	3000	201.19
32	3100	203.46
33	3200	201.79
34	3300	201.31
35	3400	201.46
36	3500	202.27
37	3600	201.14
38	3700	204.85
39	3800	202.79
40	3900	203.89
41	4000	202.91
42	4100	202.38
43	4200	210.76
44	4300	204.00
45	4400	202.71
46	4500	202.64
47	4600	202.01
48	4700	201.24
49	4800	203.56
50	4900	201.77

Download This Route's Data

Download the probe round as CSV, JSON or YAML under CC BY 4.0. Citation details include the route and round timestamp.

CSV JSON YAML Full dataset

Theoretical Fiber Latency

The propagation model uses public city-centre coordinates from GeoNames: Ashburn (39.04372, -77.48749) and Melbourne (-37.81400, 144.96332). These are not facility coordinates or a surveyed cable path.

Physical Reference	Value
WGS-84 geodesic distance	16,348.2 km
Vacuum RTT floor	109.06 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	160.09 ms
Low-latency fiber material floor	159.45 ms
Engineering floor (5% path allowance)	168.12 ms
Research 1.33× mapped-fiber reference	212.92 ms
Estimated unamplified path loss	3433.1 dB
Transparent optical spans / inline amplifiers	215 / 214
Published RTT inflation over fiber floor	1.27×

The span count assumes 80 km optical spans. Attenuation is a power-loss term, not a propagation delay. See the model assumptions and equations.

Stability & Trend

Statistics from the same 50 replies. They describe this probe round, not continuous historical monitoring.

Round Statistic	Value
Minimum RTT	200.88 ms
Average RTT	203.9 ms
Maximum RTT	217.16 ms
Standard deviation	3.32 ms
Stdev / average	1.6%

Estimated RTT trend

Modeled comparison, not historical probe measurements.

Average: 204.0 ms
Minimum: 202.6 ms
Maximum: 205.7 ms
Average loss: 0.02%

Route Context

Departure PoP: Ashburn (IAD)
Destination PoP: Melbourne (MEL)
Region overview: North America → Asia Pacific
Corridor overview: North America to Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Melbourne to Ashburn latency and RTT: 203.9 ms

Fastest routes departing Ashburn (IAD)

Ashburn to New York latency and RTT: 6 ms
Ashburn to Miami latency and RTT: 27.4 ms
Ashburn to Los Angeles latency and RTT: 60.7 ms
Ashburn to Seattle latency and RTT: 62.3 ms
Ashburn to London latency and RTT: 70.3 ms

Fastest routes arriving at Melbourne (MEL)

Sydney to Melbourne latency and RTT: 9.8 ms
Singapore to Melbourne latency and RTT: 88.6 ms
Tokyo to Melbourne latency and RTT: 113.9 ms
Hong Kong to Melbourne latency and RTT: 138.4 ms
Taipei to Melbourne latency and RTT: 142 ms

Same corridor (North America → Asia Pacific)

Seattle to Tokyo latency and RTT: 85 ms
Los Angeles to Tokyo latency and RTT: 101.2 ms
Seattle to Taipei latency and RTT: 114.7 ms

About This Measurement

These ICMP measurements cover the two backbone endpoints. Access networks, routing policy and load can change an end user's result. A probe round is not an SLA.

The underlying replies are available under CC BY 4.0 in the Hats Network latency dataset. Per-pair files are available at /opendata/latency/latest/pairs/iad-mel.pings.{csv,json,yaml}. Cite the route, round timestamp and dataset version. Example: "Hats Network latency dataset, Ashburn → Melbourne round 2026-08-16T04:07:28Z, CC BY 4.0".

Round published August 16, 2026. See the full interactive latency matrix or browse more city-pair routes.

Ashburn, USA → Melbourne, Australia RTT