Taipei to Johannesburg ping and RTT: 330.9 ms, 6.27 ms jitter, 112.87 ms fiber floor, and 34.1% efficiency across AS203314. Updated 2026-08-10.

🇹🇼 This page compares the published ping and round-trip time (RTT) from Taipei (TPE) to 🇿🇦 Johannesburg (JNB) with vacuum and optical-fiber physical limits.

As of August 10, 2026, the Taipei → Johannesburg route on Hats Network averages 330.9 ms RTT across a 50-sample daily ICMP echo measurement round, 2.93× the theoretical fiber-floor limit of 112.87 ms.

Among the 19 measured routes departing Taipei, this route ranks 19th fastest by average RTT.

With a stdev-to-average ratio of 2.1%, this route is more stable than the network median of 3.1%. Across the round, per-probe RTT ranged from 322.14 ms to 348.94 ms with a standard deviation of 6.94 ms.

Latency Summary

Metric	Value
RTT	330.9 ms
Jitter	6.27 ms
Packet Loss	0%
Standard Fiber Floor	112.87 ms
Fiber Efficiency	34.1%
Latency Tier	High
Source Region	Asia Pacific
Destination Region	Africa

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: TPE → JNB

50 ICMP echo samples at 100 ms intervals · round 2026-08-10 · avg 330.9 ± 0.98 ms (SE)

Sample distribution: box = interquartile range (325.0–334.0 ms), median 330.4 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 (112.9 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	322.19
2	100	330.49
3	200	326.77
4	300	336.33
5	400	344.34
6	500	333.37
7	600	332.87
8	700	326.72
9	800	336.93
10	900	336.08
11	1000	346.47
12	1100	332.00
13	1200	329.93
14	1300	348.50
15	1400	332.77
16	1500	325.33
17	1600	330.59
18	1700	331.71
19	1800	327.18
20	1900	323.92
21	2000	329.92
22	2100	328.23
23	2200	324.26
24	2300	331.18
25	2400	339.66
26	2500	335.07
27	2600	334.02
28	2700	332.79
29	2800	324.87
30	2900	322.14
31	3000	344.13
32	3100	333.32
33	3200	348.94
34	3300	334.05
35	3400	331.26
36	3500	334.39
37	3600	328.28
38	3700	326.15
39	3800	323.76
40	3900	322.85
41	4000	322.46
42	4100	328.32
43	4200	323.34
44	4300	322.31
45	4400	323.43
46	4500	324.63
47	4600	336.98
48	4700	330.36
49	4800	324.21
50	4900	325.20

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 Taipei (25.05306, 121.52639) and Johannesburg (-26.20227, 28.04363). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	11,525.4 km
Vacuum RTT floor	76.89 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	112.87 ms
Low-latency fiber material floor	112.41 ms
Engineering floor (5% path allowance)	118.52 ms
Research 1.33× mapped-fiber reference	150.11 ms
Estimated unamplified path loss	2420.3 dB
Transparent optical spans / inline amplifiers	152 / 151
Published RTT inflation over fiber floor	2.93×

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 (2026-08-10) collected 50 ICMP echo samples on this route. Distribution statistics from that round:

Round Statistic	Value
Minimum RTT	322.14 ms
Average RTT	330.9 ms
Maximum RTT	348.94 ms
Standard deviation	6.94 ms
Stdev / average	2.1%

RTT trend

Estimated route stability across the selected time window.

Average: 330.5 ms
Minimum: 327.6 ms
Maximum: 333.0 ms
Average loss: 0.02%

Route Context

Departure PoP: Taipei (TPE)
Destination PoP: Johannesburg (JNB)
Region overview: Asia Pacific → Africa
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Johannesburg to Taipei latency and RTT — 333 ms

Fastest routes departing Taipei (TPE)

Taipei to Hong Kong latency and RTT — 14.9 ms
Taipei to Tokyo latency and RTT — 31.9 ms
Taipei to Singapore latency and RTT — 45.2 ms
Taipei to Seattle latency and RTT — 115.9 ms
Taipei to Sydney latency and RTT — 131.5 ms

Fastest routes arriving at Johannesburg (JNB)

Amsterdam to Johannesburg latency and RTT — 171.9 ms
Berlin to Johannesburg latency and RTT — 172.1 ms
London to Johannesburg latency and RTT — 179.8 ms
Paris to Johannesburg latency and RTT — 180.9 ms
Frankfurt to Johannesburg latency and RTT — 188.9 ms

Same corridor (Asia Pacific → Africa)

Singapore to Johannesburg latency and RTT — 310.5 ms
Hong Kong to Johannesburg latency and RTT — 316.9 ms
Tokyo to Johannesburg latency and RTT — 360.5 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/tpe-jnb.pings.{csv,json,yaml}. When citing, include the route, the measurement round date, and the dataset version — for example: "Hats Network latency dataset, Taipei → Johannesburg round 2026-08-10, CC BY 4.0".

Data auto-generated on August 10, 2026. Explore the full interactive latency matrix or browse more city-pair routes.

Taipei to Johannesburg Latency, Ping & RTT | AS203314