Explore Taipei, Taiwan to Ashburn, USA ICMP RTT, jitter, packet loss and fiber latency limits on the AS203314 network. View route data.

🇹🇼 Taipei, Taiwan (TPE) → 🇺🇸 Ashburn, USA (IAD)

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

Taipei to Ashburn averaged 171.6 ms across 50 replies. The observed range was 163.88 to 199.15 ms; these figures describe one probe round, not a long-term service target.

Standard deviation was 7 ms, or 4.1% of the average. This describes variation within the sample without identifying its cause.

Latency Summary

Metric	Value
RTT	171.6 ms
Jitter	4.89 ms
Packet Loss	0%
Standard Fiber Floor	123.78 ms
Fiber Efficiency	72.1%
Latency Tier	Fair
Source Region	Asia Pacific
Destination Region	North America

Ping Measurement Series

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

Ping series: TPE → IAD

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 171.6 ± 0.99 ms (SE)

Sample distribution: box = interquartile range (166.9–173.8 ms), median 169.9 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 (123.8 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	167.14
2	100	165.82
3	200	165.74
4	300	164.39
5	400	173.30
6	500	170.10
7	600	166.21
8	700	165.67
9	800	164.25
10	900	163.88
11	1000	169.12
12	1100	170.40
13	1200	174.97
14	1300	172.52
15	1400	170.95
16	1500	172.80
17	1600	167.64
18	1700	166.02
19	1800	168.35
20	1900	176.55
21	2000	168.45
22	2100	199.15
23	2200	188.45
24	2300	173.85
25	2400	169.70
26	2500	166.37
27	2600	176.67
28	2700	174.02
29	2800	171.63
30	2900	166.88
31	3000	175.25
32	3100	172.66
33	3200	167.77
34	3300	164.94
35	3400	165.63
36	3500	169.17
37	3600	173.56
38	3700	167.21
39	3800	168.85
40	3900	172.32
41	4000	172.14
42	4100	174.98
43	4200	173.78
44	4300	167.70
45	4400	165.84
46	4500	167.14
47	4600	183.62
48	4700	177.52
49	4800	176.18
50	4900	192.75

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: Taipei (25.05306, 121.52639) and Ashburn (39.04372, -77.48749). These are not facility coordinates or a surveyed cable path.

Physical Reference	Value
WGS-84 geodesic distance	12,639.6 km
Vacuum RTT floor	84.32 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	123.78 ms
Low-latency fiber material floor	123.28 ms
Engineering floor (5% path allowance)	129.98 ms
Research 1.33× mapped-fiber reference	164.62 ms
Estimated unamplified path loss	2654.3 dB
Transparent optical spans / inline amplifiers	166 / 165
Published RTT inflation over fiber floor	1.39×

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	163.88 ms
Average RTT	171.6 ms
Maximum RTT	199.15 ms
Standard deviation	7 ms
Stdev / average	4.1%

Estimated RTT trend

Modeled comparison, not historical probe measurements.

Average: 171.7 ms
Minimum: 170.2 ms
Maximum: 173.4 ms
Average loss: 0.01%

Route Context

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

Reverse direction

Ashburn to Taipei latency and RTT: 172.3 ms

Fastest routes departing Taipei (TPE)

Taipei to Hong Kong latency and RTT: 15.5 ms
Taipei to Tokyo latency and RTT: 31.9 ms
Taipei to Singapore latency and RTT: 44.3 ms
Taipei to Seattle latency and RTT: 115.8 ms
Taipei to Los Angeles latency and RTT: 132 ms

Fastest routes arriving at Ashburn (IAD)

New York to Ashburn latency and RTT: 6 ms
Miami to Ashburn latency and RTT: 27.3 ms
Los Angeles to Ashburn latency and RTT: 60.4 ms
Seattle to Ashburn latency and RTT: 61.5 ms
London to Ashburn latency and RTT: 71 ms

Same corridor (Asia Pacific → North America)

Tokyo to Seattle latency and RTT: 84.8 ms
Tokyo to Los Angeles latency and RTT: 101.2 ms
Hong Kong to Seattle latency and RTT: 131.6 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/tpe-iad.pings.{csv,json,yaml}. Cite the route, round timestamp and dataset version. Example: "Hats Network latency dataset, Taipei → Ashburn 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.

Taipei, Taiwan → Ashburn, USA RTT