Round-trip time from your browser to every Oracle Cloud Infrastructure region — 57 of them, 17 in North America, 13 in Europe, 12 in Asia, 6 in South America, 5 in the Middle East, 2 in Africa, 2 in Oceania — each against the speed-of-light floor its distance sets, so a slow region is visibly far rather than badly routed.
Not in the ICMP sense — that is out of reach from a web page. The equivalent is a small HTTPS request to the region’s Object Storage endpoint, which answers 404 rather than 200. That is no obstacle: a refusal arriving quickly measures the path exactly as well as a success would.
objectstorage.{region}.oraclecloud.com answers 404 with Access-Control-Allow-Origin: * from a unicast address inside the region — not an anycast edge.
The first request of a sweep is discarded — it pays for DNS, TCP and TLS — so every sample after it is essentially one round trip, and the reported figure is the fastest of them.
| Region | City | Country | IPv4 prefixes |
|---|---|---|---|
| af-casablanca-1 | Casablanca | MA | 12 |
| af-johannesburg-1 | Johannesburg | ZA | 14 |
| ap-batam-1 | Batam | ID | 12 |
| ap-chuncheon-1 | Chuncheon | KR | 25 |
| ap-delhi-1 | Delhi | IN | 10 |
| ap-hyderabad-1 | Hyderabad | IN | 22 |
| ap-kulai-1 | Kulai | MY | 10 |
| ap-kulai-2 | Kulai | MY | — |
| ap-mumbai-1 | Mumbai | IN | 30 |
| ap-osaka-1 | Osaka | JP | 20 |
| ap-seoul-1 | Seoul | KR | 28 |
| ap-singapore-1 | Singapore | SG | 22 |
| ap-singapore-2 | Singapore | SG | 10 |
| ap-tokyo-1 | Tokyo | JP | 38 |
| eu-amsterdam-1 | Amsterdam | NL | 33 |
| eu-dublin-3 | Dublin | IE | 10 |
| eu-frankfurt-1 | Frankfurt | DE | 61 |
| uk-london-1 | London | GB | 44 |
| eu-madrid-1 | Madrid | ES | 14 |
| eu-madrid-3 | Madrid | ES | 10 |
| eu-marseille-1 | Marseille | FR | 14 |
| eu-milan-1 | Milan | IT | 19 |
| uk-cardiff-1 | Newport | GB | 15 |
| eu-paris-1 | Paris | FR | 15 |
| eu-stockholm-1 | Stockholm | SE | 15 |
| eu-turin-1 | Turin | IT | — |
| eu-zurich-1 | Zurich | CH | 16 |
| me-abudhabi-1 | Abu Dhabi | AE | 10 |
| me-dubai-1 | Dubai | AE | 16 |
| me-jeddah-1 | Jeddah | SA | 21 |
| il-jerusalem-1 | Jerusalem | IL | 14 |
| me-riyadh-1 | Riyadh | SA | 11 |
| us-abilene-1 | Abilene TX | US | 10 |
| us-ashburn-1 | Ashburn VA | US | 72 |
| us-boardman-1 | Boardman OR | US | 9 |
| us-chicago-1 | Chicago IL | US | 32 |
| us-dallas-1 | Dallas TX | US | 13 |
| us-desmoines-1 | Des Moines IA | US | 9 |
| us-lenexa-1 | Lenexa KS | US | 9 |
| mx-monterrey-1 | Monterrey | MX | 10 |
| ca-montreal-1 | Montreal | CA | 15 |
| us-phoenix-1 | Phoenix AZ | US | 57 |
| mx-queretaro-1 | Queretaro | MX | 13 |
| us-quincy-1 | Quincy WA | US | 9 |
| us-saltlake-2 | Salt Lake City UT | US | 8 |
| us-sanantonio-1 | San Antonio TX | US | 9 |
| us-sanjose-1 | San Jose CA | US | 31 |
| us-shawnee-1 | Shawnee KS | US | 9 |
| ca-toronto-1 | Toronto | CA | 23 |
| ap-melbourne-1 | Melbourne | AU | 20 |
| ap-sydney-1 | Sydney | AU | 31 |
| sa-bogota-1 | Bogota | CO | 10 |
| sa-riodejaneiro-2 | Rio de Janeiro | BR | 9 |
| sa-santiago-1 | Santiago | CL | 22 |
| sa-saopaulo-1 | Sao Paulo | BR | 41 |
| sa-valparaiso-1 | Valparaiso | CL | 11 |
| sa-vinhedo-1 | Vinhedo | BR | 22 |
Prefix counts come from Oracle’s own published feed. Each region links to its distance, its physical floor and the endpoint used to time it.
Open the instrument, select Oracle, choose regions and run a sweep. Nothing is pre-selected and nothing runs until you press the button.