region·latency

AWS af-south-1 latency

Africa (Cape Town) · Cape Town, ZA. How long a round trip from your machine to this region takes — and how much of that distance alone demands.

The region

CloudAmazon Web Services
Region codeaf-south-1
Region nameAfrica (Cape Town)
Datacentre cityCape Town, ZA
Coordinates-33.92, 18.42
Published IPv4 prefixes140
Probe endpointhttps://dynamodb.af-south-1.amazonaws.com/
Probe stylea CORS request whose reply the page can read
VerificationResolved to an address inside this region’s own published range, TCP 443 open. Checked 2026-08-21.

Coordinates are the real datacentre city rather than the marketing region name, because they feed the distance maths below.

Distance, and the floor it sets

Light in fibre covers about 100 km per millisecond of round trip. These are the great-circle distances to Cape Town and the latency no network can beat — not a measurement, a limit. What you actually measure is this plus routing.

FromDistanceFloor
New York12,564 km126 ms
Los Angeles16,050 km160 ms
São Paulo6,344 km63 ms
London9,671 km97 ms
Frankfurt9,393 km94 ms
Johannesburg1,262 km13 ms
Dubai7,639 km76 ms
Mumbai8,243 km82 ms
Singapore9,667 km97 ms
Tokyo14,728 km147 ms
Sydney11,012 km110 ms

Other regions in this metro

Within 75 km of Cape Town — near enough that distance sets no meaningful floor between them. When several sit in one city, the fastest is the city’s real floor; a slower neighbour is usually the endpoint’s own server time.

Measure it yourself

These figures are geometry. Your own round trip to af-south-1 depends on your connection and the route it takes — open the instrument, pick AWS, and sweep. Every region is timed from your browser against the endpoint listed above, and the result is split into the part physics demands and the part the network added.

See every AWS region on the AWS latency page.